性能最好的序列化反序列化，Protobuf的用法（maven项目）

首先要在pom.xml里添加Protobuf的jar包
<dependency>
<groupId>com.dyuproject.protostuff</groupId>
<artifactId>protostuff-core</artifactId>
<version>1.0.8</version>
</dependency>

<dependency>
<groupId>com.dyuproject.protostuff</groupId>
<artifactId>protostuff-runtime</artifactId>
<version>1.0.8</version>
</dependency>
序列化的实体类User.Java（不需要实现Serializable接口）

package com.serialize.entity;

public class User {
private String id;
private String username;
private String password;

public User() {
}
public User(String id, String username, String password) {
this.id = id;
this.username = username;
this.password = password;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String toString() {
return "User [id=" + id + ", username=" + username + ", password="
+ password + "]";
}

}
序列化的工具类SerializeUtils.java（使用了泛型方法）

package com.serialize.utils;

import com.dyuproject.protostuff.LinkedBuffer;
import com.dyuproject.protostuff.ProtobufIOUtil;
import com.dyuproject.protostuff.runtime.RuntimeSchema;

public class SerializeUtils{
public static <T> byte[] serialize(T t,Class<T> clazz) {
return ProtobufIOUtil.toByteArray(t, RuntimeSchema.createFrom(clazz),
LinkedBuffer.allocate(LinkedBuffer.DEFAULT_BUFFER_SIZE));
}
public static <T> T deSerialize(byte[] data,Class<T> clazz) {
RuntimeSchema<T> runtimeSchema = RuntimeSchema.createFrom(clazz);
T t = runtimeSchema.newMessage();
ProtobufIOUtil.mergeFrom(data, t, runtimeSchema);
return t;
}
}
测试主类App.java

package com.serialize;

import com.serialize.entity.User;
import com.serialize.utils.SerializeUtils;

public class App {
public static void main(String[] args) {
User user=new User("1","xiaobao","123456");
System.out.println("序列化");
byte[] data = SerializeUtils.serialize(user,User.class);
for (byte b : data) {
System.out.print(b);
}
System.out.println();
System.out.println("反序列化");
User user2 = SerializeUtils.deSerialize(data,User.class);
System.out.println(user2);
}
}