Socket服务端与客户端互发数据

服务端：

package com.pkg1;

import java.io.*;
import java.net.*;

public class NetServer2 {
    static final int PORT = 8888;
    
    public static void main(String[]args){
        try {
            //create server socket
            ServerSocket svrSocket = new ServerSocket(PORT);
            
            //listen client
            Socket socket = svrSocket.accept();
            
            //prepare client socket input stream reader
            InputStreamReader reader = new InputStreamReader(socket.getInputStream());
            BufferedReader bufReader = new BufferedReader(reader);
            
            //prepare server PrintWriter
            PrintWriter writer = new PrintWriter(socket.getOutputStream(), true);
            
            //prepare console input stream reader
            InputStreamReader conReader = new InputStreamReader(System.in);
            BufferedReader bufConReader = new BufferedReader(conReader);
            
            while(true){
                //read client information
                System.out.println("wait for client data...");
                System.out.println("Server, receive : " + bufReader.readLine());
                
                //send information to client
                System.out.println("Please input data and send it to client...");
                writer.println(bufConReader.readLine());
            }
            
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

客户端：

package com.pkg1;

import java.io.*;
import java.net.*;

public class NetClient2 {
    static final String IP = "127.0.0.1";
    static final int PORT = 8888;
    
    public static void main(String[] args) {
        
        try {
            //create socket connection
            Socket socket = new Socket(IP, PORT);
            
            //prepare PrintWriter to send data to server
            PrintWriter writer = new PrintWriter(socket.getOutputStream(), true);
            
            //prepare console input stream reader
            InputStreamReader conReader = new InputStreamReader(System.in);
            BufferedReader bufConReader = new BufferedReader(conReader);
            
            //prepare input stream reader to get data from server
            InputStreamReader reader = new InputStreamReader(socket.getInputStream());
            BufferedReader bufReader = new BufferedReader(reader);
            
            while(true){
                //send data to server
                System.out.println("Please input data and send it to server...");
                writer.println(bufConReader.readLine());
                
                //receive data from server
                System.out.println("wait for server data...");
                System.out.println("Client, receive : " + bufReader.readLine());
            }
            
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}