Test_Java_网络编程（客户端向服务器发送字符串，服务器将字符串反转后发送给客户端）

来源：互联网发布：深圳华夏软件学校编辑：程序博客网时间：2024/05/21 06:27

需求：客户端向服务器写字符串(键盘录入),服务器(多线程)将字符串反转后写回,客户端再次读取到是反转后的字符串

Test1_Client.java

package com.soar.test;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintStream;import java.net.Socket;import java.net.UnknownHostException;import java.util.Scanner;public class Test1_Client {    /*     * 客户端向服务器写字符串(键盘录入),服务器(多线程)将字符串反转后写回,     * 客户端再次读取到是反转后的字符串     */    public static void main(String[] args) throws UnknownHostException, IOException {        Scanner sc = new Scanner(System.in);        //创建键盘录入对象        Socket socket = new Socket("127.0.0.1", 54321); //创建客户端，指定ip地址和端口号        //获取输入流        BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));        //获取输出流        PrintStream ps = new PrintStream(socket.getOutputStream());        ps.println(sc.nextLine());      //将字符串写到服务器中        System.out.println(br.readLine());  //将反转后的结果输出来        socket.close();    }}

Test1_Server.java

package com.soar.test;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintStream;import java.net.ServerSocket;import java.net.Socket;public class Test1_Server {    public static void main(String[] args) throws IOException {        ServerSocket server = new ServerSocket(54321);        System.out.println("服务器启动，绑定54321端口");        while(true){            final Socket socket = server.accept();            new Thread(){               //开启一条线程                public void run(){                    try {                        BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream())); //获取输入流                        PrintStream ps = new PrintStream(socket.getOutputStream()); //获取输出流                        String line = br.readLine();        //将客户端写过来的数据读取出来                        line = new StringBuilder(line).reverse().toString();    //链式编程                        ps.println(line);                   //反转后写回去                        socket.close();                    } catch (IOException e) {                        e.printStackTrace();                    }                }            }.start();        }    }}

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