Java网路编程____TCP协议客户端服务器信息交互例子

package com.frame.base.TCP;

import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;

public class TCPSocketServer {

	public static void main(String[] args) throws Exception{
		/**
		 * 启动服务端Soecket 注册外放信息交互的端口
		 */
		ServerSocket serverSocket = new ServerSocket(9999);
		//定义Socket对象监听9999端口接收的数据
		Socket socket = serverSocket.accept();
		
		System.out.println("IP:"+serverSocket.getInetAddress().getHostAddress()+"__连接上服务端开始接收数据...");
		//定义输入流和解析字节数据
		InputStream inputStream = socket.getInputStream();
			byte[] bytes = new byte[1024];
			int len = inputStream.read(bytes);
		System.out.println("读取的数据为:"+new String(bytes,0,len));
		//关闭客户端
		socket.close();
		//关闭服务端（可选）
		serverSocket.close();
	}
}

2.客户端

package com.frame.base.TCP;

import java.io.OutputStream;
import java.net.Socket;

public class TCPSocketClient {

	public static void main(String[] args) throws Exception {
		/**
		 * 定义Socket 指定接入服务端的IP和外放端口
		 */
		Socket socket = new Socket("127.0.0.1", 9999);
		/**
		 * 将请求数据封装到输出流中进行传递
		 */
		OutputStream out = socket.getOutputStream();
		out.write("TCPSocketClient说: 你好服务器".getBytes());
		
		socket.close();
	}
}

3.运行结果