Java Socket传输对象(序列化)

1.首先需要一个普通的对象类，由于需要序列化这个对象以便在网络上传输，所以实现java.io.Serializable接口就是必不可少的，请求实体：

/**
 * @Title:RequestBean.java
 * @Package:com.sk.bean
 * @Description:请求参数
 * @Author:shenkang
 * @Date:2014年8月8日
 * @Version:V1.0
 */
package com.sk.bean;

import java.io.Serializable;

/**
 *
 */
public class RequestBean implements Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	//可以放任何类型的数据
	private String name;
	private String password;
	/**
	 * 
	 */
	public RequestBean() {
		
	}
	/**
	 * @param name
	 * @param password
	 */
	public RequestBean(String name, String password) {
		this.name = name;
		this.password = password;
	}
	public String getName() {
		return this.name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getPassword() {
		return this.password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
}

2.响应实体

/**
 * @Title:ResponseBean.java
 * @Package:com.sk.bean
 * @Description:响应参数
 * @Author:shenkang
 * @Date:2014年8月8日
 * @Version:V1.0
 */
package com.sk.bean;

import java.io.Serializable;

/**
 *
 */
public class ResponseBean implements Serializable {
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	private int id;
	private String name;
	private String pwd;
	private int age;
	private String sex;
	/**
	 * 
	 */
	public ResponseBean() {
		
	}
	/**
	 * @param id
	 * @param name
	 * @param pwd
	 * @param age
	 * @param sex
	 */
	public ResponseBean(int id, String name, String pwd, int age, String sex) {
		this.id = id;
		this.name = name;
		this.pwd = pwd;
		this.age = age;
		this.sex = sex;
	}
	public int getId() {
		return this.id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getName() {
		return this.name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getPwd() {
		return this.pwd;
	}
	public void setPwd(String pwd) {
		this.pwd = pwd;
	}
	public int getAge() {
		return this.age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public String getSex() {
		return this.sex;
	}
	public void setSex(String sex) {
		this.sex = sex;
	}
}

3.服务端：

/**
 * @Title:SocketServer.java
 * @Package:com.sk.socket
 * @Description:服务端
 * @Author:shenkang
 * @Date:2014年8月8日
 * @Version:V1.0
 */
package com.sk.socket;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.ServerSocket;
import java.net.Socket;

import org.apache.log4j.Logger;

import com.sk.bean.RequestBean;
import com.sk.bean.ResponseBean;

/**
 *
 */
public class SocketServer {
	private final static Logger logger = Logger.getLogger(SocketServer.class
			.getName());

	public static void main(String[] args) throws IOException {
		ServerSocket server = new ServerSocket(6666);

		while (true) {
			logger.info("scoket start!");
			Socket socket = server.accept();
			invoke(socket);
		}
	}

	private static void invoke(final Socket socket) throws IOException {
		new Thread(new Runnable() {
			public void run() {
				ObjectInputStream is = null;
				ObjectOutputStream os = null;
				try {
					is = new ObjectInputStream(new BufferedInputStream(
							socket.getInputStream()));
					os = new ObjectOutputStream(socket.getOutputStream());

					Object obj = is.readObject();
					RequestBean req = (RequestBean) obj;
					System.out.println("user: " + req.getName() + "/"
							+ req.getPassword());
					//TOD 获取请求参数后可以查询数据信息
					ResponseBean res = new ResponseBean(1, "sk", "123456", 22, "男");
					
					os.writeObject(res);
					os.flush();
				} catch (IOException ex) {
					logger.info("读取数据出错!");
				} catch (ClassNotFoundException ex) {
					logger.info("缺少类信息!");
				} finally {
					try {
						is.close();
					} catch (Exception ex) {
					}
					try {
						os.close();
					} catch (Exception ex) {
					}
					try {
						socket.close();
					} catch (Exception ex) {
					}
				}
			}
		}).start();
	}

}

4.客户端：

/**
 * @Title:SocketClient.java
 * @Package:com.sk.client
 * @Description:客户端
 * @Author:shenkang
 * @Date:2014年8月8日
 * @Version:V1.0
 */
package com.sk.client;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.Socket;

import org.apache.log4j.Logger;

import com.sk.bean.RequestBean;
import com.sk.bean.ResponseBean;

/**
 *
 */
public class SocketClient {
	private final static Logger logger = Logger.getLogger(SocketClient.class
			.getName());

	public static void main(String[] args) throws Exception {
		Socket socket = null;
		ObjectOutputStream os = null;
		ObjectInputStream is = null;

		try {
			socket = new Socket("127.0.0.1", 6666);

			os = new ObjectOutputStream(socket.getOutputStream());
			RequestBean req = new RequestBean("sk", "123456");
			os.writeObject(req);
			os.flush();

			is = new ObjectInputStream(new BufferedInputStream(
					socket.getInputStream()));
			Object obj = is.readObject();
			if (obj != null) {
				ResponseBean res = (ResponseBean) obj;
				System.out.println("age: " + res.getAge() + "/" + res.getSex());
			}
		} catch (IOException ex) {
			logger.info("读取数据出错!");
		} finally {
			try {
				is.close();
			} catch (Exception ex) {
			}
			try {
				os.close();
			} catch (Exception ex) {
			}
			try {
				socket.close();
			} catch (Exception ex) {
			}
		}
	}
}

5.先启动服务端，然后启动客户端：

服务端打印：user: sk/123456

客户端打印：age: 22/男