RabbitMQ简单应用の简单队列

（1）首先创建一个maven项目：

pom.xml，重点是配置RabbitMQ

     <dependencies>
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
             <version>4.11</version>
             <!-- 表示开发的时候引入，发布的时候不会加载此包 -->
             <scope>test</scope>
         </dependency>
         <!-- spring核心包 -->
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-core</artifactId>
             <version>${spring.version}</version>
         </dependency>

         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-web</artifactId>
             <version>${spring.version}</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-oxm</artifactId>
             <version>${spring.version}</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-tx</artifactId>
             <version>${spring.version}</version>
         </dependency>

         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-jdbc</artifactId>
             <version>${spring.version}</version>
         </dependency>

         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-webmvc</artifactId>
             <version>${spring.version}</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-aop</artifactId>
             <version>${spring.version}</version>
         </dependency>

         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-context-support</artifactId>
             <version>${spring.version}</version>
         </dependency>

         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-test</artifactId>
             <version>${spring.version}</version>
         </dependency>
         <!-- mybatis核心包 -->
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
             <version>${mybatis.version}</version>
         </dependency>
         <!-- mybatis/spring包 -->
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis-spring</artifactId>
             <version>1.2.2</version>
         </dependency>
         <!-- 导入java ee jar 包 -->
         <dependency>
             <groupId>javax</groupId>
             <artifactId>javaee-api</artifactId>
             <version>7.0</version>
         </dependency>
         <!-- 导入Mysql数据库链接jar包 -->
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
             <version>5.1.30</version>
         </dependency>
         <!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->
         <dependency>
             <groupId>commons-dbcp</groupId>
             <artifactId>commons-dbcp</artifactId>
             <version>1.2.2</version>
         </dependency>
         <!-- JSTL标签类 -->
         <dependency>
             <groupId>jstl</groupId>
             <artifactId>jstl</artifactId>
             <version>1.2</version>
         </dependency>
         <!-- 日志文件管理包 -->
         <!-- log start -->
         <dependency>
             <groupId>log4j</groupId>
             <artifactId>log4j</artifactId>
             <version>${log4j.version}</version>
         </dependency>

         <!-- 格式化对象，方便输出日志 -->
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
             <version>1.1.41</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
             <version>${slf4j.version}</version>
         </dependency>
         <dependency>
             <groupId>net.sf.json-lib</groupId>
             <artifactId>json-lib</artifactId>
             <version>2.4</version>
             <classifier>jdk15</classifier>
         </dependency>
         <!-- https://mvnrepository.com/artifact/org.apache.ant/ant -->
         <dependency>
             <groupId>org.apache.ant</groupId>
             <artifactId>ant</artifactId>
             <version>1.8.2</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-log4j12</artifactId>
             <version>${slf4j.version}</version>
         </dependency>
         <!-- log end -->
         <!-- 映入JSON -->
         <dependency>
             <groupId>org.codehaus.jackson</groupId>
             <artifactId>jackson-mapper-asl</artifactId>
             <version>1.9.13</version>
         </dependency>
         <!-- 上传组件包 -->
         <dependency>
             <groupId>commons-fileupload</groupId>
             <artifactId>commons-fileupload</artifactId>
             <version>1.3.1</version>
         </dependency>
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
             <version>2.4</version>
         </dependency>
         <dependency>
             <groupId>commons-codec</groupId>
             <artifactId>commons-codec</artifactId>
             <version>1.9</version>
         </dependency>
         <dependency>
             <groupId>net.sourceforge.jexcelapi</groupId>
             <artifactId>jxl</artifactId>
             <version>2.6.12</version>
         </dependency>
         <!-- https://mvnrepository.com/artifact/org.json/json -->
         <dependency>
             <groupId>org.json</groupId>
             <artifactId>json</artifactId>
             <version>20171018</version>
         </dependency>
         <dependency>
             <groupId>com.sun.jna</groupId>
             <artifactId>jna</artifactId>
             <version>3.0.9</version>
         </dependency>
         <dependency>
             <groupId>com.examples</groupId>
             <artifactId>examples</artifactId>
             <version>1.1.2</version>
         </dependency>
         <dependency>
             <groupId>com.rabbitmq</groupId>
             <artifactId>amqp-client</artifactId>
             <version>3.5.1</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.amqp</groupId>
             <artifactId>spring-rabbit</artifactId>
             <version>1.4.5.RELEASE</version>
         </dependency>
     </dependencies> 

项目结构：

（1）首先创建获取MQ的链接工厂ConnectionUtils

 package com.mmr.rabbitmq.util;

 import java.io.IOException;

 import com.rabbitmq.client.Connection;
 import com.rabbitmq.client.ConnectionFactory;

 public class ConnectionUtils {
     /**
      * @desc 获取Mq 的链接
      * @author zp
      * @throws IOException
      * @date 2018-7-19
      */
     public static  Connection getConnection() throws IOException {
         // 1.定义一个链接工厂
         ConnectionFactory factroy = new ConnectionFactory();

         // 2.设置服务地址
         factroy.setHost("127.0.0.1");

         // 3.设置端口号
         factroy.setPort(5672);

         // 4.vhost  设置数据库
         factroy.setVirtualHost("vhtest");

         // 5.设置用户名
         factroy.setUsername("jerry");

         // 6. 设置密码
         factroy.setPassword("123456");

         // 7.返回链接
         return factroy.newConnection();
     }
 }

（2）其次创建消息生产者Send，这里消息生产者每发送一次消息，我们就可以通过rabbitmq（http://localhost:15672）的服务Queues进行查看

 package com.mmr.rabbitmq.simple;

 import java.io.IOException;

 import com.mmr.rabbitmq.util.ConnectionUtils;
 import com.rabbitmq.client.Channel;
 import com.rabbitmq.client.Connection;

 public class Send {
     private static final String QUEUE_NAME = "test_simple_queue";
     public static void main(String[] args) throws IOException {
         // 1.获取一个链接
         Connection connection = ConnectionUtils.getConnection();

         // 2.获取一个通道
         Channel channel = connection.createChannel();

         // 3.创建队列 创建队列声明
         channel.queueDeclare(QUEUE_NAME, false, false, false, null);

         //
         String msg = "hello simple";

         channel.basicPublish("", QUEUE_NAME, null, msg.getBytes());

         System.out.println("---send msg :"+msg);

         channel.close();

         connection.close();
     }
 }

（3）最后创建消息消费者Recv，这里我们通过while循环可以获取每次rabbitmq（http://localhost:15672）的服务Queues接收到消息（方法一）

 package com.mmr.rabbitmq.simple;

 import java.io.IOException;

 import com.mmr.rabbitmq.util.ConnectionUtils;
 import com.rabbitmq.client.Channel;
 import com.rabbitmq.client.Connection;
 import com.rabbitmq.client.ConsumerCancelledException;
 import com.rabbitmq.client.QueueingConsumer;
 import com.rabbitmq.client.QueueingConsumer.Delivery;
 import com.rabbitmq.client.ShutdownSignalException;

 /**
  * @desc 消费者获取消息
  * @author zp
  * @date 2018-7-19
  */
 public class Recv {
     private static final String QUEUE_NAME = "test_simple_queue";
     public static void main(String[] args) throws IOException, ShutdownSignalException, ConsumerCancelledException, InterruptedException {
         // 获取链接
         Connection  connection = ConnectionUtils.getConnection();

         // 创建通道
         Channel channel = connection.createChannel();

         // 定义队列消费者
         QueueingConsumer consumer = new QueueingConsumer(channel);

         // 监听队列
         channel.basicConsume(QUEUE_NAME, true, consumer);

         while (true) {
             Delivery delivery = consumer.nextDelivery();// 下一个到达的

             String msgString = new String(delivery.getBody()); 

             System.out.println("[recv] msg:"+msgString);
         }
     }
 }

（3）最后创建消息消费者Recv，这里我们通过while循环可以获取每次rabbitmq（http://localhost:15672）的服务Queues接收到消息（方法二）

 package com.mmr.rabbitmq.simple;

 import java.io.IOException;

 import com.mmr.rabbitmq.util.ConnectionUtils;
 import com.rabbitmq.client.Channel;
 import com.rabbitmq.client.Connection;
 import com.rabbitmq.client.ConsumerCancelledException;
 import com.rabbitmq.client.DefaultConsumer;
 import com.rabbitmq.client.Envelope;
 import com.rabbitmq.client.QueueingConsumer;
 import com.rabbitmq.client.AMQP.BasicProperties;
 import com.rabbitmq.client.QueueingConsumer.Delivery;
 import com.rabbitmq.client.ShutdownSignalException;

 /**
  * @desc 消费者获取消息
  * @author zp
  * @date 2018-7-19
  */
 public class Recv {
     private static final String QUEUE_NAME = "test_simple_queue";

     public static void main(String[] args) throws IOException{
         // 获取链接
         Connection connection = ConnectionUtils.getConnection();

         // 获取通道
         Channel channel = connection.createChannel();

         // 队列声明
         channel.queueDeclare(QUEUE_NAME, false, false, false, null);

         // 定义消费者
         DefaultConsumer consumer = new DefaultConsumer(channel){
             // 获取到到达的消息
             @Override
             public void handleDelivery(String consumerTag, Envelope envelope,
                     BasicProperties properties, byte[] body) throws IOException {
                 // TODO Auto-generated method stub
                 //super.handleDelivery(consumerTag, envelope, properties, body);
                 String msg = new String(body,"utf-8");
                 System.out.println("new api recv:"+msg);
             }
         };
         // 监听队列
         channel.basicConsume(QUEUE_NAME, true,consumer);

     }
 }

这样一个简单的队列应用就完成了。