protostuff

介绍

在很多地方都需要用到序列化, 比如在使用redis缓存对象时, 一般情况是实现java Serializable接口. 简单介绍下在慕课网学习到的一个新的序列化工具 —— protostuff.
在学习中介绍使用该工具可以大大减少对象序列化后字节所占空间, 并提高序列化时间等.
1.慕课网课程地址
2.序列化相关工具比较

引入依赖

<!-- protostuff 序列化工具 -->
    <dependency>
        <groupId>com.dyuproject.protostuff</groupId>
        <artifactId>protostuff-core</artifactId>
        <version>1.1.3</version>
    </dependency>
    <dependency>
        <groupId>com.dyuproject.protostuff</groupId>
        <artifactId>protostuff-runtime</artifactId>
        <version>1.1.3</version>
    </dependency>

相关使用

import com.dyuproject.protostuff.LinkedBuffer;
import com.dyuproject.protostuff.ProtostuffIOUtil;
import com.dyuproject.protostuff.runtime.RuntimeSchema;
/**
 * @author liuzhihang
 * @date 2018/4/18 15:04
 */
public class ProtostuffUtil {
    public static <T> byte[] serialize(T t, Class<T> cls) {
        RuntimeSchema<T> schema = RuntimeSchema.createFrom(cls);
        return ProtostuffIOUtil.toByteArray(t, schema, LinkedBuffer.allocate(LinkedBuffer.DEFAULT_BUFFER_SIZE));
    }
    public static <T> T unSerialize(byte[] bytes, Class<T> cls) {
        RuntimeSchema<T> schema = RuntimeSchema.createFrom(cls);
        T message = schema.newMessage();
        ProtostuffIOUtil.mergeFrom(bytes, message, schema);
        return message;
    }
}

测试

import lombok.Data;
/**
 * @author liuzhihang
 * @date 2018/4/17 19:01
 */
@Data
public class User {
    private String id;
    private String userName;
}
import com.alibaba.fastjson.JSON;
/**
 * @author liuzhihang
 * @date 2018/4/17 19:02
 */
public class ProtostuffTest {
    public static void main(String[] args) {
        User user = new User();
        user.setId("test0001");
        user.setUserName("测试用户0001");
        System.out.println(JSON.toJSONString(user));
        byte[] serialize = ProtostuffUtil.serialize(user, User.class);
        User unSerialize = ProtostuffUtil.unSerialize(serialize, User.class);
        System.err.println(JSON.toJSONString(unSerialize));
    }
}
结果:
{"id":"test0001","userName":"测试用户0001"}
{"id":"test0001","userName":"测试用户0001"}