Java网络编程（ServerSocket和Socket）

服务器端

package org.tcp;

import java.io.PrintStream;

import java.net.ServerSocket;

import java.net.Socket;

public class HelloServer {

public static void main(String[] args) throws Exception{

ServerSocket server = null;

Socket client = null;

PrintStream out = null;

server = new ServerSocket(8888);

System.out.println("服务器与性，等待客户端链接");

client = server.accept();

String str = "hello world!!!";

out = new PrintStream(client.getOutputStream());

out.println(str);

out.close();

client.close();

server.close();

}

}

程序运行结果：服务器运行，等待客户端链接

客户端

package org.tcp;

import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.net.Socket;

public class HelloClient {

public static void main(String[] args) throws Exception{

Socket client = null;

client = new Socket("localhost",8888);

BufferedReader buf = null;

buf = new BufferedReader(new InputStreamReader(client.getInputStream()));

String str = buf.readLine();

System.out.println("服务器端输出内容："+str);

client.close();

buf.close();

}

}

程序运行结果：服务器端输出内容：hello world!!!

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