Question

以下是 link ，我正在编写一个使用telnet的Java / Netbeans中的简单程序，但我一直遇到同样的错误。我在这里做错了什么？我刚刚为每个人制作了2个.java文件，并且我试图在net beans中运行它来按下run 1

线程“main”中的异常java.net.ConnectException：Connection 拒绝：连接

Telnet客户端 Telnet客户端 //此代码连接到telnet服务器并在输入命令“1”时接收数据

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

class TelnetClient
{
    public static void main(String args[]) throws Exception
    {
        //Create object of Socket
        Socket soc=new Socket("localhost",8088);
        String Command;
        //Create object of Input Stream to read from socket
        DataInputStream din=new DataInputStream(soc.getInputStream());   
        //Create object of Output Stream  to write on socket
        DataOutputStream dout=new DataOutputStream(soc.getOutputStream());
        // Object of Buffered Reader to read command from terminal
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        System.out.println("Welcome to Telnet Client");
        System.out.println("< Telnet Prompt >");
        Command=br.readLine();//reads the command
        dout.writeUTF(Command);//sends command to server
        System.out.println(din.readLine()); //gets the response of server       
        soc.close();  //close port 
        din.close();  //close input stream      
        dout.close(); //close output stream     
        br.close();  //close buffered Reader   
    }
}

Telnet服务器 //每当客户端连接它时，此代码都会向客户端发送一个字符串 //当收到命令“1”时，将响应发送给客户端

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

class TelnetServer {
   public static void main(String args[]) {
   String data = "Hello Client!! ";
   try {
      // Create object of Server Socket
     ServerSocket srvr = new ServerSocket(8088);
      // Socket object that listens the port (8088) and accepts the incoming connection
      //requests
     Socket skt = srvr.accept();
     System.out.println("Client Connected!");
     // gets output stream object 
     PrintWriter out = new PrintWriter(skt.getOutputStream(), true);
     //gets input stream object   
     DataInputStream din=new DataInputStream(skt.getInputStream());       
     if(din.readUTF().equals("1")){ 
     // sends response to incoming request if command is '1'   

     System.out.println("String: '" + data);
     out.print(data);
     }
     out.close();// clos out
     skt.close();// close skt
     srvr.close();// close srvr
     din.close(); // close din
  }
  catch(Exception e) {
     System.out.print(e);
  }

} }

如何在netbeans telnet上运行客户端和服务器代码

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