Java 客户端应用程序未从服务器应用程序接收字符串输出

我打算让服务器应用程序向客户端发送字符串对象

应用程序，并让它打印出发送的内容，直到从

服务器等于“停止”

下面的源是服务器应用程序

/*

   Server application

*/
import java.util.*;
import java.io.*;
import java.net.*;

class FunServer{

    public static void main(String args[])throws Exception
    {

        ServerSocket ss = new ServerSocket(1234);
        Socket link = ss.accept();
        System.out.println("Connection has been established");

        //Read
        Scanner reader = new Scanner(link.getInputStream());
        //Write
        PrintWriter writer = new PrintWriter(link.getOutputStream());
        Scanner keyboard = new Scanner(System.in);
        String send;

        while(true){

            System.out.println("Please, enter your input.");
            send = keyboard.nextLine();

            if(send.equalsIgnoreCase("stop")){
                break;
            }
            wrter.println(send);
        }

        link.close();   

    }   
}

下面的源代码是客户端应用程序

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

class FunClient{

    public static void main(String args[])throws Exception
    {

            String output;

            InetAddress local = InetAddress.getLocalHost();
            Socket link = new Socket(local, 1234);
            System.out.println("Connection Successful.");

            Scanner reader = new Scanner(link.getInputStream());
            PrintWriter writer = new PrintWriter(link.getOutputStream());

            while(true){

                output = writer.nextLine();

                if(output.equals("close")){
                    break;
                }

                System.out.println(output);

            }

            link.close();

    }
}

用户输入有效字符串后，客户端中不会打印任何内容

应用程序

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

class FunClient{

    public static void main(String args[])throws Exception
    {

            String output;

            InetAddress local = InetAddress.getLocalHost();
            Socket link = new Socket(local, 1234);
            System.out.println("Connection Successful.");

            Scanner reader = new Scanner(link.getInputStream());
            PrintWriter writer = new PrintWriter(link.getOutputStream());

            while(true){

                output = writer.nextLine();

                if(output.equals("close")){
                    break;
                }

                System.out.println(output);

            }

            link.close();

    }
}

我是否以错误的方式使用扫描仪和打印机

---

谢谢。

也许您不明白Socket.getInputStream（）和Socket.getInputStream（）的作用

Socket.getInputStream（）

返回一个InputStream，您可以从中读取该InputStream以获取从对等方发送给您的数据。您从未在客户端或服务器上读取套接字的输入流，因此您从未看到对等方发送的任何内容。感谢您的建议，我将继续讨论这些概念。