netty权威指南学习笔记七——编解码技术之GoogleProtobuf

　　首先我们来看一下protobuf的优点：

• 　　谷歌长期使用成熟度高；
• 　　跨语言支持多种语言如：C++,java，Python；
• 　　编码后消息更小，更利于存储传输；
• 　　编解码性能高；
• 　　支持不同协议版本的兼容性；
• 　　支持定义可选和必选字段；

　　接下来就让我们试用一下吧。

一、Protobuf开发环境搭建

　　下载Protobuf的Windows版本，本博主用的是protoc-3.6.1-win32.zip，解压后进入bin目录可以看到protoc.exe（下面的.proto文件是博主事先拉进来的）

然后我们打开cmd命令查看protoc是否安装成功，因本博主是尝试成功后接下来补充的博客，本博主配置了环境变量，但是运行成功后又把环境变量删掉了，仍可以编译生成java文件，所以可能不需要配置，但是读者如果没有配置运行不成功的话就还是配置一下。配置的方法就是在环境变量中path中添加protoc.exe所在的路径即可。

然后在cmd中输入命令 protoc和proto --version查看

OK，然后就可以对写的文件进行编译生成.java文件。在这里本博主遇到的几个坑，就是proto文件编写语法与java不同，比如，java字符串类型为String，赋值是加双引号的，而proto不认识，它的声明词是小写的string，其赋值是不需要加双引号的；在者也需要注意proto3也不同于proto2,采用proto3必须要写出其版本号syntax = "proto3";

具体变化可以参看https://www.cnblogs.com/asminfo/p/6782906.html的一部分。

接下来就可以用demo进行示范执行，代码如下：借用java模板加入进来，一定要注意语法不能写错否则执行命令就会报错

 syntax = "proto3";
 option java_package="com.protobuf";
 option java_outer_classname="DemoProto";

 message Demo{
     int32 subReqID=1;
     string userName=2;
     string productName=3;
     string address=4;
 }

执行命令如下:protoc.exe ./源文件 --java_out=./+目标子文件夹

D:\>protoc ./protobufc/bin/Demo.proto --java_out=./                                              这条命令执行后生成的com包在d:盘根目录下

D:\>protoc ./protobufc/bin/Demo.proto --java_out=./protobufc/bin/                        这条命令执行后生成的com包在d:盘protobufc/bin/ 下

C:\Users\litan>protoc ./d:protobufc/bin/Demo.proto --java_out=./                          这条命令执行报错说明执行命令的盘必须是源文件.proto和目标文件.java的同级或父级目录
./d:protobufc/bin/Demo.proto: No such file or directory                                          报错信息

以上我们将我们接下来需要的.proto转化为.java

这是因为代码里的String用了大写，大写改为小写后代码如下：

Req代码

 syntax = "proto3";
 option java_package="com.protobuf";
 option java_outer_classname="SubscribeReqProto";

 message SubscribeReq{
     int32 subReqID=1;
     string userName=2;
     string productName=3;
     repeated string address=4;
 }

Resp代码

 syntax = "proto3";
 option java_package="com.protobuf";
 option java_outer_classname="SubscribeRespProto";

 message SubscribeResp{
     int32 subReqID=1;
     int32 respcode=2;
     string desc=3;
 }

执行

执行后的目录及代码

我们将后两个文件拷贝到相应工程中，发现报错，这里需要的是一个protobuf-java包，然后到官网找相应版本的包,该版本3.6.1的包在maven中可以找到，直接拿来用

 <!-- https://mvnrepository.com/artifact/com.google.protobuf/protobuf-java -->
 <dependency>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-java</artifactId>
     <version>3.6.1</version>
 </dependency>

maven自动更新完成后一切ok，到这里，protobuf环境已经可以使用了，即便将来再有新的pojo也可以轻松搞定。

二、测试protobuf的编解码效果

先看一下protobuf转为java后的代码，代码比较长折叠起来

Req代码

 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: SubscribeReq.proto

 package com.protobuf;

 public final class SubscribeReqProto {
   private SubscribeReqProto() {}
   public static void registerAllExtensions(
       com.google.protobuf.ExtensionRegistryLite registry) {
   }

   public static void registerAllExtensions(
       com.google.protobuf.ExtensionRegistry registry) {
     registerAllExtensions(
         (com.google.protobuf.ExtensionRegistryLite) registry);
   }
   public interface SubscribeReqOrBuilder extends
       // @@protoc_insertion_point(interface_extends:SubscribeReq)
       com.google.protobuf.MessageOrBuilder {

     /**
      * <code>int32 subReqID = 1;</code>
      */
     int getSubReqID();

     /**
      * <code>string userName = 2;</code>
      */
     String getUserName();
     /**
      * <code>string userName = 2;</code>
      */
     com.google.protobuf.ByteString
         getUserNameBytes();

     /**
      * <code>string productName = 3;</code>
      */
     String getProductName();
     /**
      * <code>string productName = 3;</code>
      */
     com.google.protobuf.ByteString
         getProductNameBytes();

     /**
      * <code>repeated string address = 4;</code>
      */
     java.util.List<String>
         getAddressList();
     /**
      * <code>repeated string address = 4;</code>
      */
     int getAddressCount();
     /**
      * <code>repeated string address = 4;</code>
      */
     String getAddress(int index);
     /**
      * <code>repeated string address = 4;</code>
      */
     com.google.protobuf.ByteString
         getAddressBytes(int index);
   }
   /**
    * Protobuf type {@code SubscribeReq}
    */
   public  static final class SubscribeReq extends
       com.google.protobuf.GeneratedMessageV3 implements
       // @@protoc_insertion_point(message_implements:SubscribeReq)
       SubscribeReqOrBuilder {
   private static final long serialVersionUID = 0L;
     // Use SubscribeReq.newBuilder() to construct.
     private SubscribeReq(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
       super(builder);
     }
     private SubscribeReq() {
       subReqID_ = 0;
       userName_ = "";
       productName_ = "";
       address_ = com.google.protobuf.LazyStringArrayList.EMPTY;
     }

     @Override
     public final com.google.protobuf.UnknownFieldSet
     getUnknownFields() {
       return this.unknownFields;
     }
     private SubscribeReq(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       this();
       if (extensionRegistry == null) {
         throw new NullPointerException();
       }
       int mutable_bitField0_ = 0;
       com.google.protobuf.UnknownFieldSet.Builder unknownFields =
           com.google.protobuf.UnknownFieldSet.newBuilder();
       try {
         boolean done = false;
         while (!done) {
           int tag = input.readTag();
           switch (tag) {
             case 0:
               done = true;
               break;
             case 8: {

               subReqID_ = input.readInt32();
               break;
             }
             case 18: {
               String s = input.readStringRequireUtf8();

               userName_ = s;
               break;
             }
             case 26: {
               String s = input.readStringRequireUtf8();

               productName_ = s;
               break;
             }
             case 34: {
               String s = input.readStringRequireUtf8();
               if (!((mutable_bitField0_ & 0x00000008) == 0x00000008)) {
                 address_ = new com.google.protobuf.LazyStringArrayList();
                 mutable_bitField0_ |= 0x00000008;
               }
               address_.add(s);
               break;
             }
             default: {
               if (!parseUnknownFieldProto3(
                   input, unknownFields, extensionRegistry, tag)) {
                 done = true;
               }
               break;
             }
           }
         }
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
         throw e.setUnfinishedMessage(this);
       } catch (java.io.IOException e) {
         throw new com.google.protobuf.InvalidProtocolBufferException(
             e).setUnfinishedMessage(this);
       } finally {
         if (((mutable_bitField0_ & 0x00000008) == 0x00000008)) {
           address_ = address_.getUnmodifiableView();
         }
         this.unknownFields = unknownFields.build();
         makeExtensionsImmutable();
       }
     }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return SubscribeReqProto.internal_static_SubscribeReq_descriptor;
     }

     @Override
     protected FieldAccessorTable
         internalGetFieldAccessorTable() {
       return SubscribeReqProto.internal_static_SubscribeReq_fieldAccessorTable
           .ensureFieldAccessorsInitialized(
               SubscribeReq.class, Builder.class);
     }

     private int bitField0_;
     public static final int SUBREQID_FIELD_NUMBER = 1;
     private int subReqID_;
     /**
      * <code>int32 subReqID = 1;</code>
      */
     public int getSubReqID() {
       return subReqID_;
     }

     public static final int USERNAME_FIELD_NUMBER = 2;
     private volatile Object userName_;
     /**
      * <code>string userName = 2;</code>
      */
     public String getUserName() {
       Object ref = userName_;
       if (ref instanceof String) {
         return (String) ref;
       } else {
         com.google.protobuf.ByteString bs =
             (com.google.protobuf.ByteString) ref;
         String s = bs.toStringUtf8();
         userName_ = s;
         return s;
       }
     }
     /**
      * <code>string userName = 2;</code>
      */
     public com.google.protobuf.ByteString
         getUserNameBytes() {
       Object ref = userName_;
       if (ref instanceof String) {
         com.google.protobuf.ByteString b =
             com.google.protobuf.ByteString.copyFromUtf8(
                 (String) ref);
         userName_ = b;
         return b;
       } else {
         return (com.google.protobuf.ByteString) ref;
       }
     }

     public static final int PRODUCTNAME_FIELD_NUMBER = 3;
     private volatile Object productName_;
     /**
      * <code>string productName = 3;</code>
      */
     public String getProductName() {
       Object ref = productName_;
       if (ref instanceof String) {
         return (String) ref;
       } else {
         com.google.protobuf.ByteString bs =
             (com.google.protobuf.ByteString) ref;
         String s = bs.toStringUtf8();
         productName_ = s;
         return s;
       }
     }
     /**
      * <code>string productName = 3;</code>
      */
     public com.google.protobuf.ByteString
         getProductNameBytes() {
       Object ref = productName_;
       if (ref instanceof String) {
         com.google.protobuf.ByteString b =
             com.google.protobuf.ByteString.copyFromUtf8(
                 (String) ref);
         productName_ = b;
         return b;
       } else {
         return (com.google.protobuf.ByteString) ref;
       }
     }

     public static final int ADDRESS_FIELD_NUMBER = 4;
     private com.google.protobuf.LazyStringList address_;
     /**
      * <code>repeated string address = 4;</code>
      */
     public com.google.protobuf.ProtocolStringList
         getAddressList() {
       return address_;
     }
     /**
      * <code>repeated string address = 4;</code>
      */
     public int getAddressCount() {
       return address_.size();
     }
     /**
      * <code>repeated string address = 4;</code>
      */
     public String getAddress(int index) {
       return address_.get(index);
     }
     /**
      * <code>repeated string address = 4;</code>
      */
     public com.google.protobuf.ByteString
         getAddressBytes(int index) {
       return address_.getByteString(index);
     }

     private byte memoizedIsInitialized = -1;
     @Override
     public final boolean isInitialized() {
       byte isInitialized = memoizedIsInitialized;
       if (isInitialized == 1) return true;
       if (isInitialized == 0) return false;

       memoizedIsInitialized = 1;
       return true;
     }

     @Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
       if (subReqID_ != 0) {
         output.writeInt32(1, subReqID_);
       }
       if (!getUserNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 2, userName_);
       }
       if (!getProductNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 3, productName_);
       }
       for (int i = 0; i < address_.size(); i++) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 4, address_.getRaw(i));
       }
       unknownFields.writeTo(output);
     }

     @Override
     public int getSerializedSize() {
       int size = memoizedSize;
       if (size != -1) return size;

       size = 0;
       if (subReqID_ != 0) {
         size += com.google.protobuf.CodedOutputStream
           .computeInt32Size(1, subReqID_);
       }
       if (!getUserNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, userName_);
       }
       if (!getProductNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, productName_);
       }
       {
         int dataSize = 0;
         for (int i = 0; i < address_.size(); i++) {
           dataSize += computeStringSizeNoTag(address_.getRaw(i));
         }
         size += dataSize;
         size += 1 * getAddressList().size();
       }
       size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }

     @Override
     public boolean equals(final Object obj) {
       if (obj == this) {
        return true;
       }
       if (!(obj instanceof SubscribeReq)) {
         return super.equals(obj);
       }
       SubscribeReq other = (SubscribeReq) obj;

       boolean result = true;
       result = result && (getSubReqID()
           == other.getSubReqID());
       result = result && getUserName()
           .equals(other.getUserName());
       result = result && getProductName()
           .equals(other.getProductName());
       result = result && getAddressList()
           .equals(other.getAddressList());
       result = result && unknownFields.equals(other.unknownFields);
       return result;
     }

     @Override
     public int hashCode() {
       if (memoizedHashCode != 0) {
         return memoizedHashCode;
       }
       int hash = 41;
       hash = (19 * hash) + getDescriptor().hashCode();
       hash = (37 * hash) + SUBREQID_FIELD_NUMBER;
       hash = (53 * hash) + getSubReqID();
       hash = (37 * hash) + USERNAME_FIELD_NUMBER;
       hash = (53 * hash) + getUserName().hashCode();
       hash = (37 * hash) + PRODUCTNAME_FIELD_NUMBER;
       hash = (53 * hash) + getProductName().hashCode();
       if (getAddressCount() > 0) {
         hash = (37 * hash) + ADDRESS_FIELD_NUMBER;
         hash = (53 * hash) + getAddressList().hashCode();
       }
       hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }

     public static SubscribeReq parseFrom(
         java.nio.ByteBuffer data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
     public static SubscribeReq parseFrom(
         java.nio.ByteBuffer data,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
     public static SubscribeReq parseFrom(
         com.google.protobuf.ByteString data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
     public static SubscribeReq parseFrom(
         com.google.protobuf.ByteString data,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
     public static SubscribeReq parseFrom(byte[] data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
     public static SubscribeReq parseFrom(
         byte[] data,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
     public static SubscribeReq parseFrom(java.io.InputStream input)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input);
     }
     public static SubscribeReq parseFrom(
         java.io.InputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input, extensionRegistry);
     }
     public static SubscribeReq parseDelimitedFrom(java.io.InputStream input)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseDelimitedWithIOException(PARSER, input);
     }
     public static SubscribeReq parseDelimitedFrom(
         java.io.InputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
     }
     public static SubscribeReq parseFrom(
         com.google.protobuf.CodedInputStream input)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input);
     }
     public static SubscribeReq parseFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input, extensionRegistry);
     }

     @Override
     public Builder newBuilderForType() { return newBuilder(); }
     public static Builder newBuilder() {
       return DEFAULT_INSTANCE.toBuilder();
     }
     public static Builder newBuilder(SubscribeReq prototype) {
       return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
     }
     @Override
     public Builder toBuilder() {
       return this == DEFAULT_INSTANCE
           ? new Builder() : new Builder().mergeFrom(this);
     }

     @Override
     protected Builder newBuilderForType(
         BuilderParent parent) {
       Builder builder = new Builder(parent);
       return builder;
     }
     /**
      * Protobuf type {@code SubscribeReq}
      */
     public static final class Builder extends
         com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
         // @@protoc_insertion_point(builder_implements:SubscribeReq)
         SubscribeReqOrBuilder {
       public static final com.google.protobuf.Descriptors.Descriptor
           getDescriptor() {
         return SubscribeReqProto.internal_static_SubscribeReq_descriptor;
       }

       @Override
       protected FieldAccessorTable
           internalGetFieldAccessorTable() {
         return SubscribeReqProto.internal_static_SubscribeReq_fieldAccessorTable
             .ensureFieldAccessorsInitialized(
                 SubscribeReq.class, Builder.class);
       }

       // Construct using com.protobuf.SubscribeReqProto.SubscribeReq.newBuilder()
       private Builder() {
         maybeForceBuilderInitialization();
       }

       private Builder(
           BuilderParent parent) {
         super(parent);
         maybeForceBuilderInitialization();
       }
       private void maybeForceBuilderInitialization() {
         if (com.google.protobuf.GeneratedMessageV3
                 .alwaysUseFieldBuilders) {
         }
       }
       @Override
       public Builder clear() {
         super.clear();
         subReqID_ = 0;

         userName_ = "";

         productName_ = "";

         address_ = com.google.protobuf.LazyStringArrayList.EMPTY;
         bitField0_ = (bitField0_ & ~0x00000008);
         return this;
       }

       @Override
       public com.google.protobuf.Descriptors.Descriptor
           getDescriptorForType() {
         return SubscribeReqProto.internal_static_SubscribeReq_descriptor;
       }

       @Override
       public SubscribeReq getDefaultInstanceForType() {
         return SubscribeReq.getDefaultInstance();
       }

       @Override
       public SubscribeReq build() {
         SubscribeReq result = buildPartial();
         if (!result.isInitialized()) {
           throw newUninitializedMessageException(result);
         }
         return result;
       }

       @Override
       public SubscribeReq buildPartial() {
         SubscribeReq result = new SubscribeReq(this);
         int from_bitField0_ = bitField0_;
         int to_bitField0_ = 0;
         result.subReqID_ = subReqID_;
         result.userName_ = userName_;
         result.productName_ = productName_;
         if (((bitField0_ & 0x00000008) == 0x00000008)) {
           address_ = address_.getUnmodifiableView();
           bitField0_ = (bitField0_ & ~0x00000008);
         }
         result.address_ = address_;
         result.bitField0_ = to_bitField0_;
         onBuilt();
         return result;
       }

       @Override
       public Builder clone() {
         return (Builder) super.clone();
       }
       @Override
       public Builder setField(
           com.google.protobuf.Descriptors.FieldDescriptor field,
           Object value) {
         return (Builder) super.setField(field, value);
       }
       @Override
       public Builder clearField(
           com.google.protobuf.Descriptors.FieldDescriptor field) {
         return (Builder) super.clearField(field);
       }
       @Override
       public Builder clearOneof(
           com.google.protobuf.Descriptors.OneofDescriptor oneof) {
         return (Builder) super.clearOneof(oneof);
       }
       @Override
       public Builder setRepeatedField(
           com.google.protobuf.Descriptors.FieldDescriptor field,
           int index, Object value) {
         return (Builder) super.setRepeatedField(field, index, value);
       }
       @Override
       public Builder addRepeatedField(
           com.google.protobuf.Descriptors.FieldDescriptor field,
           Object value) {
         return (Builder) super.addRepeatedField(field, value);
       }
       @Override
       public Builder mergeFrom(com.google.protobuf.Message other) {
         if (other instanceof SubscribeReq) {
           return mergeFrom((SubscribeReq)other);
         } else {
           super.mergeFrom(other);
           return this;
         }
       }

       public Builder mergeFrom(SubscribeReq other) {
         if (other == SubscribeReq.getDefaultInstance()) return this;
         if (other.getSubReqID() != 0) {
           setSubReqID(other.getSubReqID());
         }
         if (!other.getUserName().isEmpty()) {
           userName_ = other.userName_;
           onChanged();
         }
         if (!other.getProductName().isEmpty()) {
           productName_ = other.productName_;
           onChanged();
         }
         if (!other.address_.isEmpty()) {
           if (address_.isEmpty()) {
             address_ = other.address_;
             bitField0_ = (bitField0_ & ~0x00000008);
           } else {
             ensureAddressIsMutable();
             address_.addAll(other.address_);
           }
           onChanged();
         }
         this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }

       @Override
       public final boolean isInitialized() {
         return true;
       }

       @Override
       public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
         SubscribeReq parsedMessage = null;
         try {
           parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
           parsedMessage = (SubscribeReq) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
           if (parsedMessage != null) {
             mergeFrom(parsedMessage);
           }
         }
         return this;
       }
       private int bitField0_;

       private int subReqID_ ;
       /**
        * <code>int32 subReqID = 1;</code>
        */
       public int getSubReqID() {
         return subReqID_;
       }
       /**
        * <code>int32 subReqID = 1;</code>
        */
       public Builder setSubReqID(int value) {

         subReqID_ = value;
         onChanged();
         return this;
       }
       /**
        * <code>int32 subReqID = 1;</code>
        */
       public Builder clearSubReqID() {

         subReqID_ = 0;
         onChanged();
         return this;
       }

       private Object userName_ = "";
       /**
        * <code>string userName = 2;</code>
        */
       public String getUserName() {
         Object ref = userName_;
         if (!(ref instanceof String)) {
           com.google.protobuf.ByteString bs =
               (com.google.protobuf.ByteString) ref;
           String s = bs.toStringUtf8();
           userName_ = s;
           return s;
         } else {
           return (String) ref;
         }
       }
       /**
        * <code>string userName = 2;</code>
        */
       public com.google.protobuf.ByteString
           getUserNameBytes() {
         Object ref = userName_;
         if (ref instanceof String) {
           com.google.protobuf.ByteString b =
               com.google.protobuf.ByteString.copyFromUtf8(
                   (String) ref);
           userName_ = b;
           return b;
         } else {
           return (com.google.protobuf.ByteString) ref;
         }
       }
       /**
        * <code>string userName = 2;</code>
        */
       public Builder setUserName(
           String value) {
         if (value == null) {
     throw new NullPointerException();
   }

         userName_ = value;
         onChanged();
         return this;
       }
       /**
        * <code>string userName = 2;</code>
        */
       public Builder clearUserName() {

         userName_ = getDefaultInstance().getUserName();
         onChanged();
         return this;
       }
       /**
        * <code>string userName = 2;</code>
        */
       public Builder setUserNameBytes(
           com.google.protobuf.ByteString value) {
         if (value == null) {
     throw new NullPointerException();
   }
   checkByteStringIsUtf8(value);

         userName_ = value;
         onChanged();
         return this;
       }

       private Object productName_ = "";
       /**
        * <code>string productName = 3;</code>
        */
       public String getProductName() {
         Object ref = productName_;
         if (!(ref instanceof String)) {
           com.google.protobuf.ByteString bs =
               (com.google.protobuf.ByteString) ref;
           String s = bs.toStringUtf8();
           productName_ = s;
           return s;
         } else {
           return (String) ref;
         }
       }
       /**
        * <code>string productName = 3;</code>
        */
       public com.google.protobuf.ByteString
           getProductNameBytes() {
         Object ref = productName_;
         if (ref instanceof String) {
           com.google.protobuf.ByteString b =
               com.google.protobuf.ByteString.copyFromUtf8(
                   (String) ref);
           productName_ = b;
           return b;
         } else {
           return (com.google.protobuf.ByteString) ref;
         }
       }
       /**
        * <code>string productName = 3;</code>
        */
       public Builder setProductName(
           String value) {
         if (value == null) {
     throw new NullPointerException();
   }

         productName_ = value;
         onChanged();
         return this;
       }
       /**
        * <code>string productName = 3;</code>
        */
       public Builder clearProductName() {

         productName_ = getDefaultInstance().getProductName();
         onChanged();
         return this;
       }
       /**
        * <code>string productName = 3;</code>
        */
       public Builder setProductNameBytes(
           com.google.protobuf.ByteString value) {
         if (value == null) {
     throw new NullPointerException();
   }
   checkByteStringIsUtf8(value);

         productName_ = value;
         onChanged();
         return this;
       }

       private com.google.protobuf.LazyStringList address_ = com.google.protobuf.LazyStringArrayList.EMPTY;
       private void ensureAddressIsMutable() {
         if (!((bitField0_ & 0x00000008) == 0x00000008)) {
           address_ = new com.google.protobuf.LazyStringArrayList(address_);
           bitField0_ |= 0x00000008;
          }
       }
       /**
        * <code>repeated string address = 4;</code>
        */
       public com.google.protobuf.ProtocolStringList
           getAddressList() {
         return address_.getUnmodifiableView();
       }
       /**
        * <code>repeated string address = 4;</code>
        */
       public int getAddressCount() {
         return address_.size();
       }
       /**
        * <code>repeated string address = 4;</code>
        */
       public String getAddress(int index) {
         return address_.get(index);
       }
       /**
        * <code>repeated string address = 4;</code>
        */
       public com.google.protobuf.ByteString
           getAddressBytes(int index) {
         return address_.getByteString(index);
       }
       /**
        * <code>repeated string address = 4;</code>
        */
       public Builder setAddress(
           int index, String value) {
         if (value == null) {
     throw new NullPointerException();
   }
   ensureAddressIsMutable();
         address_.set(index, value);
         onChanged();
         return this;
       }
       /**
        * <code>repeated string address = 4;</code>
        */
       public Builder addAddress(
           String value) {
         if (value == null) {
     throw new NullPointerException();
   }
   ensureAddressIsMutable();
         address_.add(value);
         onChanged();
         return this;
       }
       /**
        * <code>repeated string address = 4;</code>
        */
       public Builder addAllAddress(
           Iterable<String> values) {
         ensureAddressIsMutable();
         com.google.protobuf.AbstractMessageLite.Builder.addAll(
             values, address_);
         onChanged();
         return this;
       }
       /**
        * <code>repeated string address = 4;</code>
        */
       public Builder clearAddress() {
         address_ = com.google.protobuf.LazyStringArrayList.EMPTY;
         bitField0_ = (bitField0_ & ~0x00000008);
         onChanged();
         return this;
       }
       /**
        * <code>repeated string address = 4;</code>
        */
       public Builder addAddressBytes(
           com.google.protobuf.ByteString value) {
         if (value == null) {
     throw new NullPointerException();
   }
   checkByteStringIsUtf8(value);
         ensureAddressIsMutable();
         address_.add(value);
         onChanged();
         return this;
       }
       @Override
       public final Builder setUnknownFields(
           final com.google.protobuf.UnknownFieldSet unknownFields) {
         return super.setUnknownFieldsProto3(unknownFields);
       }

       @Override
       public final Builder mergeUnknownFields(
           final com.google.protobuf.UnknownFieldSet unknownFields) {
         return super.mergeUnknownFields(unknownFields);
       }

       // @@protoc_insertion_point(builder_scope:SubscribeReq)
     }

     // @@protoc_insertion_point(class_scope:SubscribeReq)
     private static final SubscribeReq DEFAULT_INSTANCE;
     static {
       DEFAULT_INSTANCE = new SubscribeReq();
     }

     public static SubscribeReq getDefaultInstance() {
       return DEFAULT_INSTANCE;
     }

     private static final com.google.protobuf.Parser<SubscribeReq>
         PARSER = new com.google.protobuf.AbstractParser<SubscribeReq>() {
       @Override
       public SubscribeReq parsePartialFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return new SubscribeReq(input, extensionRegistry);
       }
     };

     public static com.google.protobuf.Parser<SubscribeReq> parser() {
       return PARSER;
     }

     @Override
     public com.google.protobuf.Parser<SubscribeReq> getParserForType() {
       return PARSER;
     }

     @Override
     public SubscribeReq getDefaultInstanceForType() {
       return DEFAULT_INSTANCE;
     }

   }

   private static final com.google.protobuf.Descriptors.Descriptor
     internal_static_SubscribeReq_descriptor;
   private static final
     com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_SubscribeReq_fieldAccessorTable;

   public static com.google.protobuf.Descriptors.FileDescriptor
       getDescriptor() {
     return descriptor;
   }
   private static  com.google.protobuf.Descriptors.FileDescriptor
       descriptor;
   static {
     String[] descriptorData = {
       "\n\022SubscribeReq.proto\"X\n\014SubscribeReq\022\020\n\010" +
       "subReqID\030\001 \001(\005\022\020\n\010userName\030\002 \001(\t\022\023\n\013prod" +
       "uctName\030\003 \001(\t\022\017\n\007address\030\004 \003(\tB!\n\014com.pr" +
       "otobufB\021SubscribeReqProtob\006proto3"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
         new com.google.protobuf.Descriptors.FileDescriptor.    InternalDescriptorAssigner() {
           public com.google.protobuf.ExtensionRegistry assignDescriptors(
               com.google.protobuf.Descriptors.FileDescriptor root) {
             descriptor = root;
             return null;
           }
         };
     com.google.protobuf.Descriptors.FileDescriptor
       .internalBuildGeneratedFileFrom(descriptorData,
         new com.google.protobuf.Descriptors.FileDescriptor[] {
         }, assigner);
     internal_static_SubscribeReq_descriptor =
       getDescriptor().getMessageTypes().get(0);
     internal_static_SubscribeReq_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_SubscribeReq_descriptor,
         new String[] { "SubReqID", "UserName", "ProductName", "Address", });
   }

   // @@protoc_insertion_point(outer_class_scope)
 }

Resp代码

 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: SubscribeResp.proto

 package com.protobuf;

 public final class SubscribeRespProto {
   private SubscribeRespProto() {}
   public static void registerAllExtensions(
       com.google.protobuf.ExtensionRegistryLite registry) {
   }

   public static void registerAllExtensions(
       com.google.protobuf.ExtensionRegistry registry) {
     registerAllExtensions(
         (com.google.protobuf.ExtensionRegistryLite) registry);
   }
   public interface SubscribeRespOrBuilder extends
       // @@protoc_insertion_point(interface_extends:SubscribeResp)
       com.google.protobuf.MessageOrBuilder {

     /**
      * <code>int32 subReqID = 1;</code>
      */
     int getSubReqID();

     /**
      * <code>int32 respcode = 2;</code>
      */
     int getRespcode();

     /**
      * <code>string desc = 3;</code>
      */
     String getDesc();
     /**
      * <code>string desc = 3;</code>
      */
     com.google.protobuf.ByteString
         getDescBytes();
   }
   /**
    * Protobuf type {@code SubscribeResp}
    */
   public  static final class SubscribeResp extends
       com.google.protobuf.GeneratedMessageV3 implements
       // @@protoc_insertion_point(message_implements:SubscribeResp)
       SubscribeRespOrBuilder {
   private static final long serialVersionUID = 0L;
     // Use SubscribeResp.newBuilder() to construct.
     private SubscribeResp(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
       super(builder);
     }
     private SubscribeResp() {
       subReqID_ = 0;
       respcode_ = 0;
       desc_ = "";
     }

     @Override
     public final com.google.protobuf.UnknownFieldSet
     getUnknownFields() {
       return this.unknownFields;
     }
     private SubscribeResp(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       this();
       if (extensionRegistry == null) {
         throw new NullPointerException();
       }
       int mutable_bitField0_ = 0;
       com.google.protobuf.UnknownFieldSet.Builder unknownFields =
           com.google.protobuf.UnknownFieldSet.newBuilder();
       try {
         boolean done = false;
         while (!done) {
           int tag = input.readTag();
           switch (tag) {
             case 0:
               done = true;
               break;
             case 8: {

               subReqID_ = input.readInt32();
               break;
             }
             case 16: {

               respcode_ = input.readInt32();
               break;
             }
             case 26: {
               String s = input.readStringRequireUtf8();

               desc_ = s;
               break;
             }
             default: {
               if (!parseUnknownFieldProto3(
                   input, unknownFields, extensionRegistry, tag)) {
                 done = true;
               }
               break;
             }
           }
         }
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
         throw e.setUnfinishedMessage(this);
       } catch (java.io.IOException e) {
         throw new com.google.protobuf.InvalidProtocolBufferException(
             e).setUnfinishedMessage(this);
       } finally {
         this.unknownFields = unknownFields.build();
         makeExtensionsImmutable();
       }
     }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return SubscribeRespProto.internal_static_SubscribeResp_descriptor;
     }

     @Override
     protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
         internalGetFieldAccessorTable() {
       return SubscribeRespProto.internal_static_SubscribeResp_fieldAccessorTable
           .ensureFieldAccessorsInitialized(
               SubscribeResp.class, Builder.class);
     }

     public static final int SUBREQID_FIELD_NUMBER = 1;
     private int subReqID_;
     /**
      * <code>int32 subReqID = 1;</code>
      */
     public int getSubReqID() {
       return subReqID_;
     }

     public static final int RESPCODE_FIELD_NUMBER = 2;
     private int respcode_;
     /**
      * <code>int32 respcode = 2;</code>
      */
     public int getRespcode() {
       return respcode_;
     }

     public static final int DESC_FIELD_NUMBER = 3;
     private volatile Object desc_;
     /**
      * <code>string desc = 3;</code>
      */
     public String getDesc() {
       Object ref = desc_;
       if (ref instanceof String) {
         return (String) ref;
       } else {
         com.google.protobuf.ByteString bs =
             (com.google.protobuf.ByteString) ref;
         String s = bs.toStringUtf8();
         desc_ = s;
         return s;
       }
     }
     /**
      * <code>string desc = 3;</code>
      */
     public com.google.protobuf.ByteString
         getDescBytes() {
       Object ref = desc_;
       if (ref instanceof String) {
         com.google.protobuf.ByteString b =
             com.google.protobuf.ByteString.copyFromUtf8(
                 (String) ref);
         desc_ = b;
         return b;
       } else {
         return (com.google.protobuf.ByteString) ref;
       }
     }

     private byte memoizedIsInitialized = -1;
     @Override
     public final boolean isInitialized() {
       byte isInitialized = memoizedIsInitialized;
       if (isInitialized == 1) return true;
       if (isInitialized == 0) return false;

       memoizedIsInitialized = 1;
       return true;
     }

     @Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
       if (subReqID_ != 0) {
         output.writeInt32(1, subReqID_);
       }
       if (respcode_ != 0) {
         output.writeInt32(2, respcode_);
       }
       if (!getDescBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 3, desc_);
       }
       unknownFields.writeTo(output);
     }

     @Override
     public int getSerializedSize() {
       int size = memoizedSize;
       if (size != -1) return size;

       size = 0;
       if (subReqID_ != 0) {
         size += com.google.protobuf.CodedOutputStream
           .computeInt32Size(1, subReqID_);
       }
       if (respcode_ != 0) {
         size += com.google.protobuf.CodedOutputStream
           .computeInt32Size(2, respcode_);
       }
       if (!getDescBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, desc_);
       }
       size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }

     @Override
     public boolean equals(final Object obj) {
       if (obj == this) {
        return true;
       }
       if (!(obj instanceof SubscribeResp)) {
         return super.equals(obj);
       }
       SubscribeResp other = (SubscribeResp) obj;

       boolean result = true;
       result = result && (getSubReqID()
           == other.getSubReqID());
       result = result && (getRespcode()
           == other.getRespcode());
       result = result && getDesc()
           .equals(other.getDesc());
       result = result && unknownFields.equals(other.unknownFields);
       return result;
     }

     @Override
     public int hashCode() {
       if (memoizedHashCode != 0) {
         return memoizedHashCode;
       }
       int hash = 41;
       hash = (19 * hash) + getDescriptor().hashCode();
       hash = (37 * hash) + SUBREQID_FIELD_NUMBER;
       hash = (53 * hash) + getSubReqID();
       hash = (37 * hash) + RESPCODE_FIELD_NUMBER;
       hash = (53 * hash) + getRespcode();
       hash = (37 * hash) + DESC_FIELD_NUMBER;
       hash = (53 * hash) + getDesc().hashCode();
       hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }

     public static SubscribeResp parseFrom(
         java.nio.ByteBuffer data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
     public static SubscribeResp parseFrom(
         java.nio.ByteBuffer data,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
     public static SubscribeResp parseFrom(
         com.google.protobuf.ByteString data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
     public static SubscribeResp parseFrom(
         com.google.protobuf.ByteString data,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
     public static SubscribeResp parseFrom(byte[] data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
     public static SubscribeResp parseFrom(
         byte[] data,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
     public static SubscribeResp parseFrom(java.io.InputStream input)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input);
     }
     public static SubscribeResp parseFrom(
         java.io.InputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input, extensionRegistry);
     }
     public static SubscribeResp parseDelimitedFrom(java.io.InputStream input)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseDelimitedWithIOException(PARSER, input);
     }
     public static SubscribeResp parseDelimitedFrom(
         java.io.InputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
     }
     public static SubscribeResp parseFrom(
         com.google.protobuf.CodedInputStream input)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input);
     }
     public static SubscribeResp parseFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input, extensionRegistry);
     }

     @Override
     public Builder newBuilderForType() { return newBuilder(); }
     public static Builder newBuilder() {
       return DEFAULT_INSTANCE.toBuilder();
     }
     public static Builder newBuilder(SubscribeResp prototype) {
       return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
     }
     @Override
     public Builder toBuilder() {
       return this == DEFAULT_INSTANCE
           ? new Builder() : new Builder().mergeFrom(this);
     }

     @Override
     protected Builder newBuilderForType(
         com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       Builder builder = new Builder(parent);
       return builder;
     }
     /**
      * Protobuf type {@code SubscribeResp}
      */
     public static final class Builder extends
         com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
         // @@protoc_insertion_point(builder_implements:SubscribeResp)
         SubscribeRespOrBuilder {
       public static final com.google.protobuf.Descriptors.Descriptor
           getDescriptor() {
         return SubscribeRespProto.internal_static_SubscribeResp_descriptor;
       }

       @Override
       protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
           internalGetFieldAccessorTable() {
         return SubscribeRespProto.internal_static_SubscribeResp_fieldAccessorTable
             .ensureFieldAccessorsInitialized(
                 SubscribeResp.class, Builder.class);
       }

       // Construct using com.protobuf.SubscribeRespProto.SubscribeResp.newBuilder()
       private Builder() {
         maybeForceBuilderInitialization();
       }

       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
         maybeForceBuilderInitialization();
       }
       private void maybeForceBuilderInitialization() {
         if (com.google.protobuf.GeneratedMessageV3
                 .alwaysUseFieldBuilders) {
         }
       }
       @Override
       public Builder clear() {
         super.clear();
         subReqID_ = 0;

         respcode_ = 0;

         desc_ = "";

         return this;
       }

       @Override
       public com.google.protobuf.Descriptors.Descriptor
           getDescriptorForType() {
         return SubscribeRespProto.internal_static_SubscribeResp_descriptor;
       }

       @Override
       public SubscribeResp getDefaultInstanceForType() {
         return SubscribeResp.getDefaultInstance();
       }

       @Override
       public SubscribeResp build() {
         SubscribeResp result = buildPartial();
         if (!result.isInitialized()) {
           throw newUninitializedMessageException(result);
         }
         return result;
       }

       @Override
       public SubscribeResp buildPartial() {
         SubscribeResp result = new SubscribeResp(this);
         result.subReqID_ = subReqID_;
         result.respcode_ = respcode_;
         result.desc_ = desc_;
         onBuilt();
         return result;
       }

       @Override
       public Builder clone() {
         return (Builder) super.clone();
       }
       @Override
       public Builder setField(
           com.google.protobuf.Descriptors.FieldDescriptor field,
           Object value) {
         return (Builder) super.setField(field, value);
       }
       @Override
       public Builder clearField(
           com.google.protobuf.Descriptors.FieldDescriptor field) {
         return (Builder) super.clearField(field);
       }
       @Override
       public Builder clearOneof(
           com.google.protobuf.Descriptors.OneofDescriptor oneof) {
         return (Builder) super.clearOneof(oneof);
       }
       @Override
       public Builder setRepeatedField(
           com.google.protobuf.Descriptors.FieldDescriptor field,
           int index, Object value) {
         return (Builder) super.setRepeatedField(field, index, value);
       }
       @Override
       public Builder addRepeatedField(
           com.google.protobuf.Descriptors.FieldDescriptor field,
           Object value) {
         return (Builder) super.addRepeatedField(field, value);
       }
       @Override
       public Builder mergeFrom(com.google.protobuf.Message other) {
         if (other instanceof SubscribeResp) {
           return mergeFrom((SubscribeResp)other);
         } else {
           super.mergeFrom(other);
           return this;
         }
       }

       public Builder mergeFrom(SubscribeResp other) {
         if (other == SubscribeResp.getDefaultInstance()) return this;
         if (other.getSubReqID() != 0) {
           setSubReqID(other.getSubReqID());
         }
         if (other.getRespcode() != 0) {
           setRespcode(other.getRespcode());
         }
         if (!other.getDesc().isEmpty()) {
           desc_ = other.desc_;
           onChanged();
         }
         this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }

       @Override
       public final boolean isInitialized() {
         return true;
       }

       @Override
       public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
         SubscribeResp parsedMessage = null;
         try {
           parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
           parsedMessage = (SubscribeResp) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
           if (parsedMessage != null) {
             mergeFrom(parsedMessage);
           }
         }
         return this;
       }

       private int subReqID_ ;
       /**
        * <code>int32 subReqID = 1;</code>
        */
       public int getSubReqID() {
         return subReqID_;
       }
       /**
        * <code>int32 subReqID = 1;</code>
        */
       public Builder setSubReqID(int value) {

         subReqID_ = value;
         onChanged();
         return this;
       }
       /**
        * <code>int32 subReqID = 1;</code>
        */
       public Builder clearSubReqID() {

         subReqID_ = 0;
         onChanged();
         return this;
       }

       private int respcode_ ;
       /**
        * <code>int32 respcode = 2;</code>
        */
       public int getRespcode() {
         return respcode_;
       }
       /**
        * <code>int32 respcode = 2;</code>
        */
       public Builder setRespcode(int value) {

         respcode_ = value;
         onChanged();
         return this;
       }
       /**
        * <code>int32 respcode = 2;</code>
        */
       public Builder clearRespcode() {

         respcode_ = 0;
         onChanged();
         return this;
       }

       private Object desc_ = "";
       /**
        * <code>string desc = 3;</code>
        */
       public String getDesc() {
         Object ref = desc_;
         if (!(ref instanceof String)) {
           com.google.protobuf.ByteString bs =
               (com.google.protobuf.ByteString) ref;
           String s = bs.toStringUtf8();
           desc_ = s;
           return s;
         } else {
           return (String) ref;
         }
       }
       /**
        * <code>string desc = 3;</code>
        */
       public com.google.protobuf.ByteString
           getDescBytes() {
         Object ref = desc_;
         if (ref instanceof String) {
           com.google.protobuf.ByteString b =
               com.google.protobuf.ByteString.copyFromUtf8(
                   (String) ref);
           desc_ = b;
           return b;
         } else {
           return (com.google.protobuf.ByteString) ref;
         }
       }
       /**
        * <code>string desc = 3;</code>
        */
       public Builder setDesc(
           String value) {
         if (value == null) {
     throw new NullPointerException();
   }

         desc_ = value;
         onChanged();
         return this;
       }
       /**
        * <code>string desc = 3;</code>
        */
       public Builder clearDesc() {

         desc_ = getDefaultInstance().getDesc();
         onChanged();
         return this;
       }
       /**
        * <code>string desc = 3;</code>
        */
       public Builder setDescBytes(
           com.google.protobuf.ByteString value) {
         if (value == null) {
     throw new NullPointerException();
   }
   checkByteStringIsUtf8(value);

         desc_ = value;
         onChanged();
         return this;
       }
       @Override
       public final Builder setUnknownFields(
           final com.google.protobuf.UnknownFieldSet unknownFields) {
         return super.setUnknownFieldsProto3(unknownFields);
       }

       @Override
       public final Builder mergeUnknownFields(
           final com.google.protobuf.UnknownFieldSet unknownFields) {
         return super.mergeUnknownFields(unknownFields);
       }

       // @@protoc_insertion_point(builder_scope:SubscribeResp)
     }

     // @@protoc_insertion_point(class_scope:SubscribeResp)
     private static final SubscribeResp DEFAULT_INSTANCE;
     static {
       DEFAULT_INSTANCE = new SubscribeResp();
     }

     public static SubscribeResp getDefaultInstance() {
       return DEFAULT_INSTANCE;
     }

     private static final com.google.protobuf.Parser<SubscribeResp>
         PARSER = new com.google.protobuf.AbstractParser<SubscribeResp>() {
       @Override
       public SubscribeResp parsePartialFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return new SubscribeResp(input, extensionRegistry);
       }
     };

     public static com.google.protobuf.Parser<SubscribeResp> parser() {
       return PARSER;
     }

     @Override
     public com.google.protobuf.Parser<SubscribeResp> getParserForType() {
       return PARSER;
     }

     @Override
     public SubscribeResp getDefaultInstanceForType() {
       return DEFAULT_INSTANCE;
     }

   }

   private static final com.google.protobuf.Descriptors.Descriptor
     internal_static_SubscribeResp_descriptor;
   private static final
     com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_SubscribeResp_fieldAccessorTable;

   public static com.google.protobuf.Descriptors.FileDescriptor
       getDescriptor() {
     return descriptor;
   }
   private static  com.google.protobuf.Descriptors.FileDescriptor
       descriptor;
   static {
     String[] descriptorData = {
       "\n\023SubscribeResp.proto\"A\n\rSubscribeResp\022\020" +
       "\n\010subReqID\030\001 \001(\005\022\020\n\010respcode\030\002 \001(\005\022\014\n\004de" +
       "sc\030\003 \001(\tB\"\n\014com.protobufB\022SubscribeRespP" +
       "rotob\006proto3"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
         new com.google.protobuf.Descriptors.FileDescriptor.    InternalDescriptorAssigner() {
           public com.google.protobuf.ExtensionRegistry assignDescriptors(
               com.google.protobuf.Descriptors.FileDescriptor root) {
             descriptor = root;
             return null;
           }
         };
     com.google.protobuf.Descriptors.FileDescriptor
       .internalBuildGeneratedFileFrom(descriptorData,
         new com.google.protobuf.Descriptors.FileDescriptor[] {
         }, assigner);
     internal_static_SubscribeResp_descriptor =
       getDescriptor().getMessageTypes().get(0);
     internal_static_SubscribeResp_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_SubscribeResp_descriptor,
         new String[] { "SubReqID", "Respcode", "Desc", });
   }

   // @@protoc_insertion_point(outer_class_scope)
 }

测试代码

 package com.protobuf;

 import com.google.protobuf.InvalidProtocolBufferException;

 import java.util.ArrayList;
 import java.util.List;

 public class TestSubScribeReqProto {
     private static byte[] encode(SubscribeReqProto.SubscribeReq req){
         return req.toByteArray();
     }
     private static SubscribeReqProto.SubscribeReq decode(byte[] body) throws InvalidProtocolBufferException {
         return SubscribeReqProto.SubscribeReq.parseFrom(body);
     }
     private static SubscribeReqProto.SubscribeReq createSubscribeReq(){
         SubscribeReqProto.SubscribeReq.Builder builder = SubscribeReqProto.SubscribeReq.newBuilder();
         builder.setSubReqID(1);
         builder.setUserName("醉逍遥");
         builder.setProductName("Netty buffer");
         List<String> address = new ArrayList<>();
         address.add("beijing tiananmen");
         address.add("shanghai huangpujiang");
         address.add("tianjin binhaixinqu");
         address.add("shenzhen houhai");
         builder.addAllAddress(address);
         return builder.build();
     }

     public static void main(String[] args) throws InvalidProtocolBufferException {
         SubscribeReqProto.SubscribeReq req = createSubscribeReq();
         System.out.println("解码之前："+req.toString());
         byte[] b = encode(req);
         System.out.println("编码后："+b.toString());
         SubscribeReqProto.SubscribeReq req1 = decode(b);
         System.out.println("解码后："+req1);
         System.out.println("解码前后是否相等："+req.equals(req1));
     }
 }

运行结果

这里运行后已经完全没问题了，只是在userName上的汉字没有显示为汉字，在这里暂时不理会他。

三、采用netty进行实例演示

服务端代码

 package com.protobuf;

 import io.netty.bootstrap.ServerBootstrap;
 import io.netty.channel.ChannelFuture;
 import io.netty.channel.ChannelInitializer;
 import io.netty.channel.ChannelOption;
 import io.netty.channel.EventLoopGroup;
 import io.netty.channel.nio.NioEventLoopGroup;
 import io.netty.channel.socket.SocketChannel;
 import io.netty.channel.socket.nio.NioServerSocketChannel;
 import io.netty.handler.codec.protobuf.ProtobufDecoder;
 import io.netty.handler.codec.protobuf.ProtobufEncoder;
 import io.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder;
 import io.netty.handler.codec.protobuf.ProtobufVarint32LengthFieldPrepender;
 import io.netty.handler.logging.LogLevel;
 import io.netty.handler.logging.LoggingHandler;

 public class SubReqServer {
     public void bind(int port) throws InterruptedException {
         EventLoopGroup bossGroup = new NioEventLoopGroup();
         EventLoopGroup workGroup = new NioEventLoopGroup();
         try {
         ServerBootstrap b = new ServerBootstrap();
         b.group(bossGroup,workGroup).channel(NioServerSocketChannel.class)
                 .option(ChannelOption.SO_BACKLOG,100)
                 .handler(new LoggingHandler(LogLevel.INFO))
                 .childHandler(new ChannelInitializer<SocketChannel>() {
                     @Override
                     protected void initChannel(SocketChannel socketChannel) throws Exception {
                         socketChannel.pipeline().addLast(new ProtobufVarint32FrameDecoder())
                                 .addLast(new ProtobufDecoder(SubscribeReqProto.SubscribeReq.getDefaultInstance()))
                                 .addLast(new ProtobufVarint32LengthFieldPrepender())
                                 .addLast(new ProtobufEncoder())
                                 .addLast(new SubReqServerHandler());
                     }
                 });

             ChannelFuture f = b.bind(port).sync();
             f.channel().closeFuture().sync();
         } finally {
             bossGroup.shutdownGracefully();
             workGroup.shutdownGracefully();
         }
     }

     public static void main(String[] args) throws InterruptedException {
         int port =8080;
         if (args!=null&&args.length>0){
             try{
                 port = Integer.valueOf(args[0]);
             }catch (NumberFormatException e){

             }
         }
         new SubReqServer().bind(port);
     }
 }

服务端Handler代码

 package com.protobuf;

 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;

 public class SubReqServerHandler extends ChannelInboundHandlerAdapter {
     @Override
     public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
         SubscribeReqProto.SubscribeReq req = (SubscribeReqProto.SubscribeReq) msg;
         if ("zuixiaoyao".equals(req.getUserName())){
             System.out.println("服务端接收到客户端SubcribeReq的请求：【"+req.toString()+"】");
             ctx.writeAndFlush(resp(req.getSubReqID()));
         }else {
             System.out.println("用户名不相同！");
         }

     }

     private SubscribeRespProto.SubscribeResp resp(int subReqID) {
         SubscribeRespProto.SubscribeResp.Builder builder = SubscribeRespProto.SubscribeResp.newBuilder();
         builder.setRespcode(0);
         builder.setSubReqID(subReqID);
         builder.setDesc("order success!");
         return builder.build();
     }

     @Override
     public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
         ctx.flush();
     }

     @Override
     public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        ctx.close();
     }
 }

客户端代码

 package com.protobuf;

 import io.netty.bootstrap.Bootstrap;
 import io.netty.channel.ChannelFuture;
 import io.netty.channel.ChannelInitializer;
 import io.netty.channel.ChannelOption;
 import io.netty.channel.EventLoopGroup;
 import io.netty.channel.nio.NioEventLoopGroup;
 import io.netty.channel.socket.SocketChannel;
 import io.netty.channel.socket.nio.NioSocketChannel;
 import io.netty.handler.codec.protobuf.ProtobufDecoder;
 import io.netty.handler.codec.protobuf.ProtobufEncoder;
 import io.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder;
 import io.netty.handler.codec.protobuf.ProtobufVarint32LengthFieldPrepender;

 public class SubReqClient {
     public  void connect(int port, String host) throws InterruptedException {
         EventLoopGroup group = new NioEventLoopGroup();
         try {
             Bootstrap b = new Bootstrap();
             b.group(group).channel(NioSocketChannel.class)
                     .option(ChannelOption.TCP_NODELAY,true)
                     .handler(new ChannelInitializer<SocketChannel>() {
                         @Override
                         public void initChannel(SocketChannel socketChannel) {
                             socketChannel.pipeline().addLast(new ProtobufVarint32FrameDecoder())
                                     .addLast(new ProtobufDecoder(SubscribeRespProto.SubscribeResp.getDefaultInstance()))
                                     .addLast(new ProtobufVarint32LengthFieldPrepender())
                                     .addLast(new ProtobufEncoder())
                                     .addLast(new SubReqClientHandler());
                         }
                     });
             ChannelFuture f = b.connect(host,port).sync();
             f.channel().closeFuture().sync();
         }finally {
             group.shutdownGracefully();
         }

     }

     public static void main(String[] args) throws InterruptedException {
         int port = 8080;
         try{
         if(args.length>0 && args!=null){
             port = Integer.valueOf(args[0]);
         }
         }catch (NumberFormatException e){

         }
         new SubReqClient().connect(port,"127.0.0.1");
     }
 }

客户端Handler代码

 package com.protobuf;

 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;

 import java.util.ArrayList;
 import java.util.List;

 public class SubReqClientHandler extends ChannelInboundHandlerAdapter {
     @Override
     public void channelActive(ChannelHandlerContext ctx) throws Exception {
        for(int i=0;i<10;i++){
            ctx.write(subReq(i));
        }
        ctx.flush();
     }

     private SubscribeReqProto.SubscribeReq subReq(int i) {
         SubscribeReqProto.SubscribeReq.Builder builder = SubscribeReqProto.SubscribeReq.newBuilder();
         builder.setUserName("zuixiaoyao");
         builder.setProductName("xiguahong");
         builder.setSubReqID(i);
         List<String> address = new ArrayList<>();
         address.add("tianjin hongqiao");
         address.add("henan luoyang");
         address.add("shenzhen luohu");
         address.add("hebei qinhuangdao");
         builder.addAllAddress(address);
         return builder.build();
     }

     @Override
     public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
         System.out.println("接收服务端相应：【"+msg+"】");
     }

     @Override
     public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
         ctx.flush();
     }

     @Override
     public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        ctx.close();
     }
 }

运行结果：

服务端

 D:\java\java1.8\jdk1.8\bin\java.exe "-javaagent:D:\我的软件\itSoft\IntelliJ IDEA\IntelliJ IDEA 2018.1.5\lib\idea_rt.jar=63669:D:\我的软件\itSoft\IntelliJ IDEA\IntelliJ IDEA 2018.1.5\bin" -Dfile.encoding=UTF-8 -classpath D:\java\java1.8\jdk1.8\jre\lib\charsets.jar;D:\java\java1.8\jdk1.8\jre\lib\deploy.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\access-bridge-64.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\cldrdata.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\dnsns.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\jaccess.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\jfxrt.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\localedata.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\nashorn.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\sunec.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\sunjce_provider.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\sunmscapi.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\sunpkcs11.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\zipfs.jar;D:\java\java1.8\jdk1.8\jre\lib\javaws.jar;D:\java\java1.8\jdk1.8\jre\lib\jce.jar;D:\java\java1.8\jdk1.8\jre\lib\jfr.jar;D:\java\java1.8\jdk1.8\jre\lib\jfxswt.jar;D:\java\java1.8\jdk1.8\jre\lib\jsse.jar;D:\java\java1.8\jdk1.8\jre\lib\management-agent.jar;D:\java\java1.8\jdk1.8\jre\lib\plugin.jar;D:\java\java1.8\jdk1.8\jre\lib\resources.jar;D:\java\java1.8\jdk1.8\jre\lib\rt.jar;D:\netty\target\classes;D:\jboss-marshalling-1.3.0.CR9.jar;D:\jboss-marshalling-serial-1.3.0.CR9.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot-starter-data-redis\2.0.3.RELEASE\spring-boot-starter-data-redis-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot-starter\2.0.3.RELEASE\spring-boot-starter-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot\2.0.3.RELEASE\spring-boot-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.0.3.RELEASE\spring-boot-autoconfigure-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot-starter-logging\2.0.3.RELEASE\spring-boot-starter-logging-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;C:\Users\litan\.m2\repository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;C:\Users\litan\.m2\repository\org\apache\logging\log4j\log4j-to-slf4j\2.10.0\log4j-to-slf4j-2.10.0.jar;C:\Users\litan\.m2\repository\org\apache\logging\log4j\log4j-api\2.10.0\log4j-api-2.10.0.jar;C:\Users\litan\.m2\repository\org\slf4j\jul-to-slf4j\1.7.25\jul-to-slf4j-1.7.25.jar;C:\Users\litan\.m2\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;C:\Users\litan\.m2\repository\org\yaml\snakeyaml\1.19\snakeyaml-1.19.jar;C:\Users\litan\.m2\repository\org\springframework\data\spring-data-redis\2.0.8.RELEASE\spring-data-redis-2.0.8.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\data\spring-data-keyvalue\2.0.8.RELEASE\spring-data-keyvalue-2.0.8.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\data\spring-data-commons\2.0.8.RELEASE\spring-data-commons-2.0.8.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-tx\5.0.7.RELEASE\spring-tx-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-oxm\5.0.7.RELEASE\spring-oxm-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-aop\5.0.7.RELEASE\spring-aop-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-context-support\5.0.7.RELEASE\spring-context-support-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar;C:\Users\litan\.m2\repository\io\lettuce\lettuce-core\5.0.4.RELEASE\lettuce-core-5.0.4.RELEASE.jar;C:\Users\litan\.m2\repository\io\projectreactor\reactor-core\3.1.8.RELEASE\reactor-core-3.1.8.RELEASE.jar;C:\Users\litan\.m2\repository\org\reactivestreams\reactive-streams\1.0.2\reactive-streams-1.0.2.jar;C:\Users\litan\.m2\repository\io\netty\netty-common\4.1.25.Final\netty-common-4.1.25.Final.jar;C:\Users\litan\.m2\repository\io\netty\netty-transport\4.1.25.Final\netty-transport-4.1.25.Final.jar;C:\Users\litan\.m2\repository\io\netty\netty-buffer\4.1.25.Final\netty-buffer-4.1.25.Final.jar;C:\Users\litan\.m2\repository\io\netty\netty-resolver\4.1.25.Final\netty-resolver-4.1.25.Final.jar;C:\Users\litan\.m2\repository\io\netty\netty-handler\4.1.25.Final\netty-handler-4.1.25.Final.jar;C:\Users\litan\.m2\repository\io\netty\netty-codec\4.1.25.Final\netty-codec-4.1.25.Final.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot-starter-web\2.0.3.RELEASE\spring-boot-starter-web-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot-starter-json\2.0.3.RELEASE\spring-boot-starter-json-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.9.6\jackson-databind-2.9.6.jar;C:\Users\litan\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.9.0\jackson-annotations-2.9.0.jar;C:\Users\litan\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.9.6\jackson-core-2.9.6.jar;C:\Users\litan\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.9.6\jackson-datatype-jdk8-2.9.6.jar;C:\Users\litan\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.9.6\jackson-datatype-jsr310-2.9.6.jar;C:\Users\litan\.m2\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.9.6\jackson-module-parameter-names-2.9.6.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\2.0.3.RELEASE\spring-boot-starter-tomcat-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\8.5.31\tomcat-embed-core-8.5.31.jar;C:\Users\litan\.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\8.5.31\tomcat-embed-el-8.5.31.jar;C:\Users\litan\.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\8.5.31\tomcat-embed-websocket-8.5.31.jar;C:\Users\litan\.m2\repository\org\hibernate\validator\hibernate-validator\6.0.10.Final\hibernate-validator-6.0.10.Final.jar;C:\Users\litan\.m2\repository\javax\validation\validation-api\2.0.1.Final\validation-api-2.0.1.Final.jar;C:\Users\litan\.m2\repository\org\jboss\logging\jboss-logging\3.3.2.Final\jboss-logging-3.3.2.Final.jar;C:\Users\litan\.m2\repository\com\fasterxml\classmate\1.3.4\classmate-1.3.4.jar;C:\Users\litan\.m2\repository\org\springframework\spring-web\5.0.7.RELEASE\spring-web-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-beans\5.0.7.RELEASE\spring-beans-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-webmvc\5.0.7.RELEASE\spring-webmvc-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-context\5.0.7.RELEASE\spring-context-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-expression\5.0.7.RELEASE\spring-expression-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\mysql\mysql-connector-java\5.1.46\mysql-connector-java-5.1.46.jar;C:\Users\litan\.m2\repository\org\springframework\spring-core\5.0.7.RELEASE\spring-core-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-jcl\5.0.7.RELEASE\spring-jcl-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\io\netty\netty-all\4.1.25.Final\netty-all-4.1.25.Final.jar;C:\Users\litan\.m2\repository\org\msgpack\msgpack\0.6.11\msgpack-0.6.11.jar;C:\Users\litan\.m2\repository\com\googlecode\json-simple\json-simple\1.1.1\json-simple-1.1.1.jar;C:\Users\litan\.m2\repository\org\javassist\javassist\3.18.1-GA\javassist-3.18.1-GA.jar;C:\Users\litan\.m2\repository\com\google\protobuf\protobuf-java\3.6.1\protobuf-java-3.6.1.jar com.protobuf.SubReqServer
 21:00:33.990 [main] DEBUG io.netty.util.internal.logging.InternalLoggerFactory - Using SLF4J as the default logging framework
 21:00:34.000 [main] DEBUG io.netty.channel.MultithreadEventLoopGroup - -Dio.netty.eventLoopThreads: 8
 21:00:34.122 [main] DEBUG io.netty.channel.nio.NioEventLoop - -Dio.netty.noKeySetOptimization: false
 21:00:34.122 [main] DEBUG io.netty.channel.nio.NioEventLoop - -Dio.netty.selectorAutoRebuildThreshold: 512
 21:00:34.184 [main] DEBUG io.netty.util.internal.PlatformDependent - Platform: Windows
 21:00:34.186 [main] DEBUG io.netty.util.internal.PlatformDependent0 - -Dio.netty.noUnsafe: false
 21:00:34.187 [main] DEBUG io.netty.util.internal.PlatformDependent0 - Java version: 8
 21:00:34.189 [main] DEBUG io.netty.util.internal.PlatformDependent0 - sun.misc.Unsafe.theUnsafe: available
 21:00:34.191 [main] DEBUG io.netty.util.internal.PlatformDependent0 - sun.misc.Unsafe.copyMemory: available
 21:00:34.192 [main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.Buffer.address: available
 21:00:34.194 [main] DEBUG io.netty.util.internal.PlatformDependent0 - direct buffer constructor: available
 21:00:34.195 [main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.Bits.unaligned: available, true
 21:00:34.195 [main] DEBUG io.netty.util.internal.PlatformDependent0 - jdk.internal.misc.Unsafe.allocateUninitializedArray(int): unavailable prior to Java9
 21:00:34.195 [main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.DirectByteBuffer.<init>(long, int): available
 21:00:34.195 [main] DEBUG io.netty.util.internal.PlatformDependent - sun.misc.Unsafe: available
 21:00:34.196 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.tmpdir: C:\Users\litan\AppData\Local\Temp (java.io.tmpdir)
 21:00:34.197 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.bitMode: 64 (sun.arch.data.model)
 21:00:34.200 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.noPreferDirect: false
 21:00:34.200 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.maxDirectMemory: 1890582528 bytes
 21:00:34.200 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.uninitializedArrayAllocationThreshold: -1
 21:00:34.201 [main] DEBUG io.netty.util.internal.CleanerJava6 - java.nio.ByteBuffer.cleaner(): available
 21:00:34.227 [main] DEBUG io.netty.util.internal.PlatformDependent - org.jctools-core.MpscChunkedArrayQueue: available
 21:00:35.015 [main] DEBUG io.netty.channel.DefaultChannelId - -Dio.netty.processId: 19192 (auto-detected)
 21:00:35.020 [main] DEBUG io.netty.util.NetUtil - -Djava.net.preferIPv4Stack: false
 21:00:35.020 [main] DEBUG io.netty.util.NetUtil - -Djava.net.preferIPv6Addresses: false
 21:00:35.530 [main] DEBUG io.netty.util.NetUtil - Loopback interface: lo (Software Loopback Interface 1, 127.0.0.1)
 21:00:35.531 [main] DEBUG io.netty.util.NetUtil - Failed to get SOMAXCONN from sysctl and file \proc\sys\net\core\somaxconn. Default: 200
 21:00:36.148 [main] DEBUG io.netty.channel.DefaultChannelId - -Dio.netty.machineId: 00:50:56:ff:fe:c0:00:01 (auto-detected)
 21:00:36.167 [main] DEBUG io.netty.util.internal.InternalThreadLocalMap - -Dio.netty.threadLocalMap.stringBuilder.initialSize: 1024
 21:00:36.167 [main] DEBUG io.netty.util.internal.InternalThreadLocalMap - -Dio.netty.threadLocalMap.stringBuilder.maxSize: 4096
 21:00:36.187 [main] DEBUG io.netty.util.ResourceLeakDetector - -Dio.netty.leakDetection.level: simple
 21:00:36.187 [main] DEBUG io.netty.util.ResourceLeakDetector - -Dio.netty.leakDetection.targetRecords: 4
 21:00:36.258 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.numHeapArenas: 8
 21:00:36.258 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.numDirectArenas: 8
 21:00:36.258 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.pageSize: 8192
 21:00:36.258 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.maxOrder: 11
 21:00:36.258 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.chunkSize: 16777216
 21:00:36.258 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.tinyCacheSize: 512
 21:00:36.258 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.smallCacheSize: 256
 21:00:36.258 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.normalCacheSize: 64
 21:00:36.258 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.maxCachedBufferCapacity: 32768
 21:00:36.258 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.cacheTrimInterval: 8192
 21:00:36.258 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.useCacheForAllThreads: true
 21:00:36.277 [main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.allocator.type: pooled
 21:00:36.277 [main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.threadLocalDirectBufferSize: 0
 21:00:36.277 [main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.maxThreadLocalCharBufferSize: 16384
 21:00:36.327 [nioEventLoopGroup-2-1] INFO io.netty.handler.logging.LoggingHandler - [id: 0x9032f6b1] REGISTERED
 21:00:36.330 [nioEventLoopGroup-2-1] INFO io.netty.handler.logging.LoggingHandler - [id: 0x9032f6b1] BIND: 0.0.0.0/0.0.0.0:8080
 21:00:36.334 [nioEventLoopGroup-2-1] INFO io.netty.handler.logging.LoggingHandler - [id: 0x9032f6b1, L:/0:0:0:0:0:0:0:0:8080] ACTIVE
 21:00:40.586 [nioEventLoopGroup-2-1] INFO io.netty.handler.logging.LoggingHandler - [id: 0x9032f6b1, L:/0:0:0:0:0:0:0:0:8080] READ: [id: 0xe585fe82, L:/127.0.0.1:8080 - R:/127.0.0.1:63737]
 21:00:40.587 [nioEventLoopGroup-2-1] INFO io.netty.handler.logging.LoggingHandler - [id: 0x9032f6b1, L:/0:0:0:0:0:0:0:0:8080] READ COMPLETE
 21:00:40.717 [nioEventLoopGroup-3-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.maxCapacityPerThread: 4096
 21:00:40.717 [nioEventLoopGroup-3-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.maxSharedCapacityFactor: 2
 21:00:40.717 [nioEventLoopGroup-3-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.linkCapacity: 16
 21:00:40.717 [nioEventLoopGroup-3-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.ratio: 8
 21:00:40.742 [nioEventLoopGroup-3-1] DEBUG io.netty.buffer.AbstractByteBuf - -Dio.netty.buffer.bytebuf.checkAccessible: true
 21:00:40.744 [nioEventLoopGroup-3-1] DEBUG io.netty.util.ResourceLeakDetectorFactory - Loaded default ResourceLeakDetector: io.netty.util.ResourceLeakDetector@7d129f4c
 服务端接收到客户端SubcribeReq的请求：【userName: "zuixiaoyao"
 productName: "xiguahong"
 address: "tianjin hongqiao"
 address: "henan luoyang"
 address: "shenzhen luohu"
 address: "hebei qinhuangdao"
 】
 服务端接收到客户端SubcribeReq的请求：【subReqID: 1
 userName: "zuixiaoyao"
 productName: "xiguahong"
 address: "tianjin hongqiao"
 address: "henan luoyang"
 address: "shenzhen luohu"
 address: "hebei qinhuangdao"
 】
 服务端接收到客户端SubcribeReq的请求：【subReqID: 2
 userName: "zuixiaoyao"
 productName: "xiguahong"
 address: "tianjin hongqiao"
 address: "henan luoyang"
 address: "shenzhen luohu"
 address: "hebei qinhuangdao"
 】
 服务端接收到客户端SubcribeReq的请求：【subReqID: 3
 userName: "zuixiaoyao"
 productName: "xiguahong"
 address: "tianjin hongqiao"
 address: "henan luoyang"
 address: "shenzhen luohu"
 address: "hebei qinhuangdao"
 】
 服务端接收到客户端SubcribeReq的请求：【subReqID: 4
 userName: "zuixiaoyao"
 productName: "xiguahong"
 address: "tianjin hongqiao"
 address: "henan luoyang"
 address: "shenzhen luohu"
 address: "hebei qinhuangdao"
 】
 服务端接收到客户端SubcribeReq的请求：【subReqID: 5
 userName: "zuixiaoyao"
 productName: "xiguahong"
 address: "tianjin hongqiao"
 address: "henan luoyang"
 address: "shenzhen luohu"
 address: "hebei qinhuangdao"
 】
 服务端接收到客户端SubcribeReq的请求：【subReqID: 6
 userName: "zuixiaoyao"
 productName: "xiguahong"
 address: "tianjin hongqiao"
 address: "henan luoyang"
 address: "shenzhen luohu"
 address: "hebei qinhuangdao"
 】
 服务端接收到客户端SubcribeReq的请求：【subReqID: 7
 userName: "zuixiaoyao"
 productName: "xiguahong"
 address: "tianjin hongqiao"
 address: "henan luoyang"
 address: "shenzhen luohu"
 address: "hebei qinhuangdao"
 】
 服务端接收到客户端SubcribeReq的请求：【subReqID: 8
 userName: "zuixiaoyao"
 productName: "xiguahong"
 address: "tianjin hongqiao"
 address: "henan luoyang"
 address: "shenzhen luohu"
 address: "hebei qinhuangdao"
 】
 服务端接收到客户端SubcribeReq的请求：【subReqID: 9
 userName: "zuixiaoyao"
 productName: "xiguahong"
 address: "tianjin hongqiao"
 address: "henan luoyang"
 address: "shenzhen luohu"
 address: "hebei qinhuangdao"
 】

客户端

 D:\java\java1.8\jdk1.8\bin\java.exe "-javaagent:D:\我的软件\itSoft\IntelliJ IDEA\IntelliJ IDEA 2018.1.5\lib\idea_rt.jar=63711:D:\我的软件\itSoft\IntelliJ IDEA\IntelliJ IDEA 2018.1.5\bin" -Dfile.encoding=UTF-8 -classpath D:\java\java1.8\jdk1.8\jre\lib\charsets.jar;D:\java\java1.8\jdk1.8\jre\lib\deploy.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\access-bridge-64.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\cldrdata.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\dnsns.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\jaccess.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\jfxrt.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\localedata.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\nashorn.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\sunec.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\sunjce_provider.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\sunmscapi.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\sunpkcs11.jar;D:\java\java1.8\jdk1.8\jre\lib\ext\zipfs.jar;D:\java\java1.8\jdk1.8\jre\lib\javaws.jar;D:\java\java1.8\jdk1.8\jre\lib\jce.jar;D:\java\java1.8\jdk1.8\jre\lib\jfr.jar;D:\java\java1.8\jdk1.8\jre\lib\jfxswt.jar;D:\java\java1.8\jdk1.8\jre\lib\jsse.jar;D:\java\java1.8\jdk1.8\jre\lib\management-agent.jar;D:\java\java1.8\jdk1.8\jre\lib\plugin.jar;D:\java\java1.8\jdk1.8\jre\lib\resources.jar;D:\java\java1.8\jdk1.8\jre\lib\rt.jar;D:\netty\target\classes;D:\jboss-marshalling-1.3.0.CR9.jar;D:\jboss-marshalling-serial-1.3.0.CR9.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot-starter-data-redis\2.0.3.RELEASE\spring-boot-starter-data-redis-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot-starter\2.0.3.RELEASE\spring-boot-starter-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot\2.0.3.RELEASE\spring-boot-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.0.3.RELEASE\spring-boot-autoconfigure-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot-starter-logging\2.0.3.RELEASE\spring-boot-starter-logging-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;C:\Users\litan\.m2\repository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;C:\Users\litan\.m2\repository\org\apache\logging\log4j\log4j-to-slf4j\2.10.0\log4j-to-slf4j-2.10.0.jar;C:\Users\litan\.m2\repository\org\apache\logging\log4j\log4j-api\2.10.0\log4j-api-2.10.0.jar;C:\Users\litan\.m2\repository\org\slf4j\jul-to-slf4j\1.7.25\jul-to-slf4j-1.7.25.jar;C:\Users\litan\.m2\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;C:\Users\litan\.m2\repository\org\yaml\snakeyaml\1.19\snakeyaml-1.19.jar;C:\Users\litan\.m2\repository\org\springframework\data\spring-data-redis\2.0.8.RELEASE\spring-data-redis-2.0.8.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\data\spring-data-keyvalue\2.0.8.RELEASE\spring-data-keyvalue-2.0.8.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\data\spring-data-commons\2.0.8.RELEASE\spring-data-commons-2.0.8.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-tx\5.0.7.RELEASE\spring-tx-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-oxm\5.0.7.RELEASE\spring-oxm-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-aop\5.0.7.RELEASE\spring-aop-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-context-support\5.0.7.RELEASE\spring-context-support-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar;C:\Users\litan\.m2\repository\io\lettuce\lettuce-core\5.0.4.RELEASE\lettuce-core-5.0.4.RELEASE.jar;C:\Users\litan\.m2\repository\io\projectreactor\reactor-core\3.1.8.RELEASE\reactor-core-3.1.8.RELEASE.jar;C:\Users\litan\.m2\repository\org\reactivestreams\reactive-streams\1.0.2\reactive-streams-1.0.2.jar;C:\Users\litan\.m2\repository\io\netty\netty-common\4.1.25.Final\netty-common-4.1.25.Final.jar;C:\Users\litan\.m2\repository\io\netty\netty-transport\4.1.25.Final\netty-transport-4.1.25.Final.jar;C:\Users\litan\.m2\repository\io\netty\netty-buffer\4.1.25.Final\netty-buffer-4.1.25.Final.jar;C:\Users\litan\.m2\repository\io\netty\netty-resolver\4.1.25.Final\netty-resolver-4.1.25.Final.jar;C:\Users\litan\.m2\repository\io\netty\netty-handler\4.1.25.Final\netty-handler-4.1.25.Final.jar;C:\Users\litan\.m2\repository\io\netty\netty-codec\4.1.25.Final\netty-codec-4.1.25.Final.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot-starter-web\2.0.3.RELEASE\spring-boot-starter-web-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot-starter-json\2.0.3.RELEASE\spring-boot-starter-json-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.9.6\jackson-databind-2.9.6.jar;C:\Users\litan\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.9.0\jackson-annotations-2.9.0.jar;C:\Users\litan\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.9.6\jackson-core-2.9.6.jar;C:\Users\litan\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.9.6\jackson-datatype-jdk8-2.9.6.jar;C:\Users\litan\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.9.6\jackson-datatype-jsr310-2.9.6.jar;C:\Users\litan\.m2\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.9.6\jackson-module-parameter-names-2.9.6.jar;C:\Users\litan\.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\2.0.3.RELEASE\spring-boot-starter-tomcat-2.0.3.RELEASE.jar;C:\Users\litan\.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\8.5.31\tomcat-embed-core-8.5.31.jar;C:\Users\litan\.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\8.5.31\tomcat-embed-el-8.5.31.jar;C:\Users\litan\.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\8.5.31\tomcat-embed-websocket-8.5.31.jar;C:\Users\litan\.m2\repository\org\hibernate\validator\hibernate-validator\6.0.10.Final\hibernate-validator-6.0.10.Final.jar;C:\Users\litan\.m2\repository\javax\validation\validation-api\2.0.1.Final\validation-api-2.0.1.Final.jar;C:\Users\litan\.m2\repository\org\jboss\logging\jboss-logging\3.3.2.Final\jboss-logging-3.3.2.Final.jar;C:\Users\litan\.m2\repository\com\fasterxml\classmate\1.3.4\classmate-1.3.4.jar;C:\Users\litan\.m2\repository\org\springframework\spring-web\5.0.7.RELEASE\spring-web-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-beans\5.0.7.RELEASE\spring-beans-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-webmvc\5.0.7.RELEASE\spring-webmvc-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-context\5.0.7.RELEASE\spring-context-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-expression\5.0.7.RELEASE\spring-expression-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\mysql\mysql-connector-java\5.1.46\mysql-connector-java-5.1.46.jar;C:\Users\litan\.m2\repository\org\springframework\spring-core\5.0.7.RELEASE\spring-core-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\org\springframework\spring-jcl\5.0.7.RELEASE\spring-jcl-5.0.7.RELEASE.jar;C:\Users\litan\.m2\repository\io\netty\netty-all\4.1.25.Final\netty-all-4.1.25.Final.jar;C:\Users\litan\.m2\repository\org\msgpack\msgpack\0.6.11\msgpack-0.6.11.jar;C:\Users\litan\.m2\repository\com\googlecode\json-simple\json-simple\1.1.1\json-simple-1.1.1.jar;C:\Users\litan\.m2\repository\org\javassist\javassist\3.18.1-GA\javassist-3.18.1-GA.jar;C:\Users\litan\.m2\repository\com\google\protobuf\protobuf-java\3.6.1\protobuf-java-3.6.1.jar com.protobuf.SubReqClient
 21:00:38.579 [main] DEBUG io.netty.util.internal.logging.InternalLoggerFactory - Using SLF4J as the default logging framework
 21:00:38.595 [main] DEBUG io.netty.channel.MultithreadEventLoopGroup - -Dio.netty.eventLoopThreads: 8
 21:00:38.674 [main] DEBUG io.netty.channel.nio.NioEventLoop - -Dio.netty.noKeySetOptimization: false
 21:00:38.674 [main] DEBUG io.netty.channel.nio.NioEventLoop - -Dio.netty.selectorAutoRebuildThreshold: 512
 21:00:38.723 [main] DEBUG io.netty.util.internal.PlatformDependent - Platform: Windows
 21:00:38.740 [main] DEBUG io.netty.util.internal.PlatformDependent0 - -Dio.netty.noUnsafe: false
 21:00:38.740 [main] DEBUG io.netty.util.internal.PlatformDependent0 - Java version: 8
 21:00:38.744 [main] DEBUG io.netty.util.internal.PlatformDependent0 - sun.misc.Unsafe.theUnsafe: available
 21:00:38.746 [main] DEBUG io.netty.util.internal.PlatformDependent0 - sun.misc.Unsafe.copyMemory: available
 21:00:38.748 [main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.Buffer.address: available
 21:00:38.749 [main] DEBUG io.netty.util.internal.PlatformDependent0 - direct buffer constructor: available
 21:00:38.751 [main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.Bits.unaligned: available, true
 21:00:38.751 [main] DEBUG io.netty.util.internal.PlatformDependent0 - jdk.internal.misc.Unsafe.allocateUninitializedArray(int): unavailable prior to Java9
 21:00:38.751 [main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.DirectByteBuffer.<init>(long, int): available
 21:00:38.751 [main] DEBUG io.netty.util.internal.PlatformDependent - sun.misc.Unsafe: available
 21:00:38.752 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.tmpdir: C:\Users\litan\AppData\Local\Temp (java.io.tmpdir)
 21:00:38.753 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.bitMode: 64 (sun.arch.data.model)
 21:00:38.755 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.noPreferDirect: false
 21:00:38.755 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.maxDirectMemory: 1890582528 bytes
 21:00:38.756 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.uninitializedArrayAllocationThreshold: -1
 21:00:38.757 [main] DEBUG io.netty.util.internal.CleanerJava6 - java.nio.ByteBuffer.cleaner(): available
 21:00:38.784 [main] DEBUG io.netty.util.internal.PlatformDependent - org.jctools-core.MpscChunkedArrayQueue: available
 21:00:39.434 [main] DEBUG io.netty.channel.DefaultChannelId - -Dio.netty.processId: 10388 (auto-detected)
 21:00:39.437 [main] DEBUG io.netty.util.NetUtil - -Djava.net.preferIPv4Stack: false
 21:00:39.437 [main] DEBUG io.netty.util.NetUtil - -Djava.net.preferIPv6Addresses: false
 21:00:39.752 [main] DEBUG io.netty.util.NetUtil - Loopback interface: lo (Software Loopback Interface 1, 127.0.0.1)
 21:00:39.753 [main] DEBUG io.netty.util.NetUtil - Failed to get SOMAXCONN from sysctl and file \proc\sys\net\core\somaxconn. Default: 200
 21:00:40.352 [main] DEBUG io.netty.channel.DefaultChannelId - -Dio.netty.machineId: 00:50:56:ff:fe:c0:00:01 (auto-detected)
 21:00:40.363 [main] DEBUG io.netty.util.internal.InternalThreadLocalMap - -Dio.netty.threadLocalMap.stringBuilder.initialSize: 1024
 21:00:40.363 [main] DEBUG io.netty.util.internal.InternalThreadLocalMap - -Dio.netty.threadLocalMap.stringBuilder.maxSize: 4096
 21:00:40.388 [main] DEBUG io.netty.util.ResourceLeakDetector - -Dio.netty.leakDetection.level: simple
 21:00:40.388 [main] DEBUG io.netty.util.ResourceLeakDetector - -Dio.netty.leakDetection.targetRecords: 4
 21:00:40.451 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.numHeapArenas: 8
 21:00:40.451 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.numDirectArenas: 8
 21:00:40.451 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.pageSize: 8192
 21:00:40.451 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.maxOrder: 11
 21:00:40.451 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.chunkSize: 16777216
 21:00:40.451 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.tinyCacheSize: 512
 21:00:40.451 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.smallCacheSize: 256
 21:00:40.451 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.normalCacheSize: 64
 21:00:40.451 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.maxCachedBufferCapacity: 32768
 21:00:40.451 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.cacheTrimInterval: 8192
 21:00:40.451 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.useCacheForAllThreads: true
 21:00:40.468 [main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.allocator.type: pooled
 21:00:40.469 [main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.threadLocalDirectBufferSize: 0
 21:00:40.469 [main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.maxThreadLocalCharBufferSize: 16384
 21:00:40.682 [nioEventLoopGroup-2-1] DEBUG io.netty.buffer.AbstractByteBuf - -Dio.netty.buffer.bytebuf.checkAccessible: true
 21:00:40.684 [nioEventLoopGroup-2-1] DEBUG io.netty.util.ResourceLeakDetectorFactory - Loaded default ResourceLeakDetector: io.netty.util.ResourceLeakDetector@a74f5ae
 21:00:40.691 [nioEventLoopGroup-2-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.maxCapacityPerThread: 4096
 21:00:40.691 [nioEventLoopGroup-2-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.maxSharedCapacityFactor: 2
 21:00:40.691 [nioEventLoopGroup-2-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.linkCapacity: 16
 21:00:40.691 [nioEventLoopGroup-2-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.ratio: 8
 接收服务端相应：【desc: "order success!"
 】
 接收服务端相应：【subReqID: 1
 desc: "order success!"
 】
 接收服务端相应：【subReqID: 2
 desc: "order success!"
 】
 接收服务端相应：【subReqID: 3
 desc: "order success!"
 】
 接收服务端相应：【subReqID: 4
 desc: "order success!"
 】
 接收服务端相应：【subReqID: 5
 desc: "order success!"
 】
 接收服务端相应：【subReqID: 6
 desc: "order success!"
 】
 接收服务端相应：【subReqID: 7
 desc: "order success!"
 】
 接收服务端相应：【subReqID: 8
 desc: "order success!"
 】
 接收服务端相应：【subReqID: 9
 desc: "order success!"
 】

至此，全部完成，折叠的代码主要为运行的不是很需要重点阅读的代码，折叠起来以减小篇幅，在书写代码的过程中，客户端和服务端编解码等框架在pipeline.add时候的对称性要注意，否则会导致服务跑不起来。

　　补充一下书上的注意事项：

　　ProtobufDecoder仅仅负责解码，它不支持读半包，因此，在ProtobufDecoder前面，一定要有能够处理读半包的解码器，有以下三种方式可以选择。

　　1.使用Netty提供的ProtobufVarint32FrameDecoder,它可以处理半包消息；

　　2.继承Netty提供的通用半包解码器LenthFieldBasedFrameDecoder;

　　3.继承ByteToMessageDecoder类，自己处理半包消息。