序列化 jprotobuf

jprotobuf工作原理如下：

1. 扫描类上的注解的信息，进行分析(与protobuf读取proto文件进行分析过程相似)
2. 根据注解分析的结果，动态生成java代码进行protobuf序列化与反序列化的功能实现
3. 使用JDK6及以上的 code compile API进行编译后加载到classloader

github地址：https://github.com/jhunters/jprotobuf

jprotobuf 序列化字节数小，适合网络传输

序列化字段设置：

public class Student{

    private static final long serialVersionUID = -2140242550063332020L;

    @Protobuf(fieldType = FieldType.INT32, order = 1, required = true)
    private  int age;

    @Protobuf(fieldType = FieldType.STRING, order = 2, required = false)
    private  String name;

    public static int gender = 1;

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "Student{" +
                "age=" + age +
                ", name='" + name + '\'' +
                '}';
    }
}

实现序列化：

public class JprotobufDemo {

    public static void main(String[] args) {

        Codec<Student> simpleTypeCodec = ProtobufProxy
                .create(Student.class);

        Student stu = new Student();
        stu.setAge(18);
        stu.setName("mic");
        try {
            // 序列化
            byte[] bb = simpleTypeCodec.encode(stu);
            // 反序列化
            Student newStt = simpleTypeCodec.decode(bb);
            System.out.println("反序列化结果："+newStt);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}