一个关于循环的问题

Question

socket;循环java

Answer 1

import java.io.*;
import java.net.*;
class Run implements Runnable{
    public void run(){
    }
}
public class DailyAdviceClient{
    public void go(){
        try{
            Socket socket = new Socket("127.0.0.1",4242);
                InputStreamReader IR = new InputStreamReader(socket.getInputStream());
                BufferedReader BR = new BufferedReader(IR);
            while(true){
               
                String advice = BR.readLine();
                System.out.println(advice);
            }
        }catch(IOException ex){
            ex.printStackTrace();
        }finally{
        }
 
    }
 
    public static void main(String[] args){
        DailyAdviceClient dac = new DailyAdviceClient();
        dac.go();
    }
}

Answer 2

 Socket socket = new Socket("127.0.0.1",4242);            
    InputStreamReader IR = new InputStreamReader(socket.getInputStream());        
        BufferedReader BR = new BufferedReader(IR);               //写在外面获取一次就可以了.
while(true){
 String advice = BR.readLine();               
 System.out.println(advice);            }

Answer 3

试了一下，发现Server显示了一次，Client则一次都没有输出。

Answer 4

解决了，最后客户端代码跟三楼一样，服务端代码如下：
import java.io.*;
import java.net.*;public class DailyAdviceServer{
String[] advice = {"Thank you","hello world","My god","Come on"};
public void go(){
try{
ServerSocket socket = new ServerSocket(4242);
Socket sock = socket.accept();
PrintWriter PW = new PrintWriter(sock.getOutputStream());
while(true){
String ad = advice[(int)(Math.random()*advice.length)];
PW.println(ad);
System.out.println(ad);
}
}catch(IOException ex){
ex.printStackTrace();
}
} public static void main(String[] args){
DailyAdviceServer das = new DailyAdviceServer();
das.go();
}
}