java--TCP

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使用TCP协议编写一个网络程序，设置服务器端的监听端口是8002，当与客户端建立连接后，服务器端向客户端发送数据“Hello, world”，客户端收到数据后打印输出：

Send:

import java.io.*;import java.net.*;import java.net.Socket;import java.net.UnknownHostException;import org.omg.CORBA.portable.InputStream;public class Send {public static void main(String[] args) throws Exception {new TCPClient().connect();}}class TCPClient{private static final int PORT=8002;//服务器端口号public void connect() throws Exception{   //创建一个socket并连接到给出地址和端口号的计算机Socket client = new Socket(InetAddress.getLocalHost(),PORT);java.io.InputStream is = client.getInputStream(); //得到接受数据的流byte[] buf = new byte[1024];  //定义缓冲区int len = is.read(buf);  //读入缓冲区System.out.println(new String(buf,0,len));//将缓冲区中的数据输出client.close();   //关闭释放资源}}

Recive:

import java.net.ServerSocket;import java.io.*;import java.net.*;public class Recive {public static void main(String[] args) throws Exception {new TCPServer().listen();}}class TCPServer{private static final int PORT = 8002;   //定义一个端口号public void listen() throws Exception{    //定义监听，抛出异常ServerSocket serversocket = new ServerSocket(PORT);Socket client = serversocket.accept();//调用方法接收数据OutputStream os = client.getOutputStream();System.out.println("开始与客户端交互数据");os.write(("hello world").getBytes());Thread.sleep(5000);    //模拟执行其他功能的占用时间System.out.println("结束交互");os.close();}}

运行结果：

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