socket TCP通讯客户端一直循环输出welcome 求挑错

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

public class Server {
public static final int PORT=8888;
public static void main(String[] args) throws IOException{
ServerSocket ss=new ServerSocket(PORT);
System.out.println(ss);
try{
//记录客户端的数量
int count=0;
System.out.println("***服务器即将启动,等待客户端的连接***");
//循环监听,等待客户端的连接
while(true){
Socket socket=ss.accept();
//创建新线程
ServerThread serverThread=new ServerThread(socket);
//启动线程
serverThread.start();

            count++;
            System.out.println("客户端的数量:"+count);
            InetAddress address=socket.getInetAddress();
            System.out.println("当前客户端的IP:"+address.getHostAddress());
            }
    }catch(IOException e){
        e.printStackTrace();
    }finally{
        ss.close();
    }

}

}

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

服务器线程处理类
*/
public class ServerThread extends Thread{
//和本线程相关的socket
Socket socket=null;

public ServerThread(Socket socket) {
this.socket = socket;
}

//线程执行的操作,响应客户端的请求
@Override
public void run() {

BufferedReader in=null;
PrintWriter out=null;
try{
    //获取输入输出流
    in=new BufferedReader(
           new InputStreamReader(
               socket.getInputStream()));
    String info=null;
    while((info=in.readLine())!=null){
        System.out.println("我是服务器,客户端说"+info);
    }
    socket.shutdownInput();

    out=new PrintWriter(
            new BufferedWriter(
                new OutputStreamWriter(
                    socket.getOutputStream())));
    out.println("welcome!");
    out.flush();//调用flush()方法将缓冲输出
}catch(IOException e){
    e.printStackTrace();
}finally{
    try{
        if(in!=null)
            in.close();
        if(out!=null)
            out.close();
    }catch(IOException e){
        e.printStackTrace();
    }
}

}

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

客户端
*/
public class Client {
public static void main(String[] args)throws IOException {
Socket socket=new Socket("localhost",Server.PORT);
try{

BufferedReader in=new BufferedReader(
new InputStreamReader(
socket.getInputStream()));

    PrintWriter out=new PrintWriter(
                        new BufferedWriter(
                                new OutputStreamWriter(
                                        socket.getOutputStream())));
    out.println("用户名:mtone;密码:123");
    out.flush();
    //flush()表示强制将缓冲区中的数据发送出去,不必等到缓冲区满
    socket.shutdownOutput();

    String info=null;
    info=in.readLine();
    while(info!=null){
        System.out.println("我是客户端,服务器说:"+info);
    }   
}catch(IOException e){
    e.printStackTrace();
}finally{
    socket.close();
}

}
}

图片说明

你的客户端里写着“while(info!=null)”就一直打印，而 info 确实不是 null，条件一直成立。

socket TCP通讯 客户端一直循环输出welcome 求挑错

socket TCP通讯客户端一直循环输出welcome 求挑错