大家都知道protobuf好用，可是在网上找到的netty整合protobuf的文章都是千篇一律，自己编写proto文件然后使用工具转java文件用起来复杂麻烦，经过不懈努力终于找到了一个简单的方法希望大家喜欢。

google原生的protobuffer使用起来相当麻烦，首先要写.proto文件，然后编译.proto文件，生成对应的.java文件，鄙人试了一次，发现真的很麻烦。而protostuff的官方网站(http://www.protostuff.io/documentation/runtime-schema/)，对于智商比较低的小编来说也略显生涩，于是鄙人就根据项目中用到的protostuff，撰写此文，以方便自己和他人加深印象和学习。

1.实战

1.maven依赖：

io.protostuff

protostuff-core

1.4.0

io.protostuff

protostuff-runtime

1.4.0

2.ProtoBufUtil工具类:ProtoBufUtil.java

import io.protostuff.LinkedBuffer;

import io.protostuff.ProtobufIOUtil;

import io.protostuff.ProtostuffIOUtil;

import io.protostuff.Schema;

import io.protostuff.runtime.RuntimeSchema;

/**

* Created by zhangzh on 2017/2/20.

*/

public class ProtoBufUtil {

public ProtoBufUtil() {

}

public static byte[] serializer(T o) {

Schema schema = RuntimeSchema.getSchema(o.getClass());

return ProtobufIOUtil.toByteArray(o, schema, LinkedBuffer.allocate(256));

}

public static T deserializer(byte[] bytes, Class clazz) {

T obj = null;

try {

obj = clazz.newInstance();

Schema schema = RuntimeSchema.getSchema(obj.getClass());

ProtostuffIOUtil.mergeFrom(bytes, obj, schema);

} catch (InstantiationException e) {

e.printStackTrace();

} catch (IllegalAccessException e) {

e.printStackTrace();

}

return obj;

}

}

3. bean类Student.java:

import io.protostuff.Tag;

/**

* Created by zhangzh on 2017/2/20.

*/

public class Student {

@Tag(1)

private String name;

@Tag(2)

private String studentNo;

@Tag(3)

private int age;

@Tag(4)

private String schoolName;

// 关于@Tag,要么所有属性都有@Tag注解,要么都没有,不能一个类中只有部分属性有@Tag注解

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getStudentNo() {

return studentNo;

}

public void setStudentNo(String studentNo) {

this.studentNo = studentNo;

}

public int getAge() {

return age;

}

public void setAge(int age) {

this.age = age;

}

public String getSchoolName() {

return schoolName;

}

public void setSchoolName(String schoolName) {

this.schoolName = schoolName;

}

@Override

public String toString() {

return "Student{" +

"name='" + name + '\'' +

", studentNo='" + studentNo + '\'' +

", age=" + age +

", schoolName='" + schoolName + '\'' +

'}';

}

}

3.test类ProtoBufUtilTest.java:

import java.util.Arrays;

/**

* Created by zhangzh on 2017/2/20.

*/

public class ProtoBufUtilTest {

public static void main(String[] args) {

Student student = new Student();

student.setName("lance");

student.setAge(28);

student.setStudentNo("2011070122");

student.setSchoolName("BJUT");

byte[] serializerResult = ProtoBufUtil.serializer(student);

System.out.println("serializer result:" + Arrays.toString(serializerResult));

Student deSerializerResult = ProtoBufUtil.deserializer(serializerResult,Student.class);

System.out.println("deSerializerResult:" + deSerializerResult.toString());

}

}

4.输出结果:

serializer result:[10, 5, 108, 97, 110, 99, 101, 18, 10, 50, 48, 49, 49, 48, 55, 48, 49, 50, 50, 24, 28, 34, 4, 66, 74, 85, 84]

deSerializerResult:Student{name='lance', studentNo='2011070122', age=28, schoolName='BJUT'}

总结

以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，谢谢大家对脚本之家的支持。如果你想了解更多相关内容请查看下面相关链接