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

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<!-- 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

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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

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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"}