java中socket网络通讯

服务器端代码：

package socket;

import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;

public class Server {  
    public static int port = 8088;  
    public static String ip = "";  
      
    public static void main(String[] args) throws IOException {  
        //①启动服务器  
        ServerSocket server = new ServerSocket(port);  
        System.out.println("server running...");  
        //②监听Socket  
        Socket socket = server.accept();  
        //③IO流  
        BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));  
        PrintWriter pw = new PrintWriter(new OutputStreamWriter(socket.getOutputStream()));  
          
        String client = null;  
        //如果接收到客户端的exit信号则关闭Socket  
        while(!"exit".equalsIgnoreCase(client = br.readLine())){  
            System.out.println("from client say:"+client);  
            pw.println("server get your info :" +client);  
            pw.flush();  
        }  
                  
        br.close();  
        pw.close();  
          
        socket.close();  
        server.close();  
    }  
} 

客户端代码:

package socket;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

public class Client {  
    
    public static void main(String[] args) throws IOException {  
        //连接服务器  
        Socket socket = new Socket(Server.ip,Server.port);  
        System.out.println("client running...");  
          
        System.out.println("-----insert your info:");  
        //用户在控制台输入向服务器发送的信息  
        BufferedReader brConsole = new BufferedReader(new InputStreamReader(System.in));  
        //IO流  
        PrintWriter pw = new PrintWriter(socket.getOutputStream());  
        BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));  
          
        String server = null;  
        //如果用户输入exit则关闭Socket  
        while(!"exit".equalsIgnoreCase(server =  brConsole.readLine())){  
            pw.println(server);  
            pw.flush();  
            System.out.println("from server say:"+br.readLine());  
        }  
        //当用户输入exit时，把exit信息发送给服务器，服务器关闭当前Socket  
        pw.println(server);  
        pw.flush();  
        pw.close();  
        brConsole.close();  
        br.close();  
        socket.close();  
    }  
}