Question

我正在尝试将Client Class连接到另一台计算机中使用的服务器与另一个IP ...我写了服务器的IP和Socket中的相同端口，但没有连接...当我在同一台计算机上运行服务器和客户端时，我成功连接到服务器但是当我在ip中写道127.0.0.1

抱歉我的蹩脚英语...

服务器类：

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
import java.net.Socket;
import javax.swing.*;

   public class ClientSide   {
   Socket client;
   ObjectOutputStream out1;

  //////////////////////
JFrame frame=new JFrame("Client");
JTextArea ta=new JTextArea(20,10);
JButton btn=new JButton("Enter");
JTextArea send=new JTextArea(10,5);
 ///////////////////////


             /////Gui////
      ClientSide(){

     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     frame.setVisible(true);
     frame.setSize(600,500);

     JPanel p=new JPanel(new BorderLayout());
     frame.add(p);
     JScrollPane spta=new JScrollPane(ta);
     p.add(btn,BorderLayout.EAST);
     p.add(spta,BorderLayout.CENTER);
     p.add(send,BorderLayout.SOUTH);
     ta.setBackground(Color.cyan);
     frame.revalidate();
             ////set Client//
     try {      
        client=new Socket("127.0.0.1",8080);

        ta.setText("            -Connection-");

        ////set Output/////
         out1=new ObjectOutputStream( client.getOutputStream());
         out1.flush();



         btn.addActionListener(new ActionListener() {


            public void actionPerformed(ActionEvent arg0) {
                try {
                    out1.writeObject(send.getText());
                    out1.flush();
                    ta.setText(ta.getText()+"\nYou:"+send.getText());

                } catch (IOException e1) {
                    e1.printStackTrace();
                }

                  if (send.getText().equals("Bye"))

                         try {
                             client.close();
                             frame.dispose();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }

            }
        });

         //////set Input////
         ObjectInputStream in = new ObjectInputStream(client.getInputStream());
         Object inputLine; ;


         while(true){
             try {
                 out1.flush();
                inputLine = in.readObject();
                if(inputLine!=null){
                    ta.setText(ta.getText()+"\nClient:"+inputLine);
                    }
            } catch (ClassNotFoundException e) {
                e.printStackTrace();
            }
             }




    } catch (IOException e) {
        e.printStackTrace();
    }
    }


public static void main(String[] args) {

            new ClientSide();


  }
  }

客户端类：

import java.awt.*; 
import java.awt.event.*;
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import javax.swing.*;



 public class ServerSide    {
ObjectOutputStream  out;
ServerSocket ss;
Socket so;
JFrame frame=new JFrame("Server");
///////
JTextArea ta=new JTextArea(20,10);
JTextArea send=new JTextArea(10,5);
JButton enter=new JButton("Enter");
    ////set Gui////

     ServerSide(){
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 frame .setVisible(true);
 frame. setSize(600,500);

 JPanel p=new JPanel(new BorderLayout());
 frame. add(p);
 JScrollPane spta=new JScrollPane(ta);

  p.add(enter,BorderLayout.EAST);
  p.add(spta,BorderLayout.CENTER);
  p.add(send,BorderLayout.SOUTH);
  ta.setBackground(Color.cyan);
  frame.revalidate();

 /////Server///
    try {
     int port=8080;
      System.out.println(port);
    ss = new ServerSocket(8080);
    so=ss.accept();
    ta.setText(ta.getText()+"\n            -Connection-");
     /////set Output////
      out = new ObjectOutputStream(so.getOutputStream());
      out.flush();

     enter.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent arg0) {

             try {
                 Object ob=send.getText();
                out.writeObject(ob);
                SwingUtilities.invokeLater(new Runnable(){

                    public void run() {
                            ta.setText(ta.getText()+"\nYou:"+send.getText());

                        }

                    });
            } catch (IOException e1) {
                e1.printStackTrace();
            }

              if (send.getText().equals("Bye"))

                     try {
                        so.close();
                        ss.close();
                        frame.dispose();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }

        }
    });


     /////set Input///
     ObjectInputStream in = new ObjectInputStream(so.getInputStream());
     String ob ;
     while(true){
     try {

         ob = (String) in.readObject();
        if(ob!=null){
            ta.setText(ta.getText()+"\nClient:"+ob);
            }
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    }
     }





} catch (IOException e) {
    e.printStackTrace();
}

 }





public static void main(String[] args) {

                new ServerSide();

    }
    }

异常：

    java.net.ConnectException: Connection timed out: connect
    at java.net.DualStackPlainSocketImpl.connect0(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
    at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
    at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
    at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
    at java.net.PlainSocketImpl.connect(Unknown Source)
    at java.net.SocksSocketImpl.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at java.net.Socket.<init>(Unknown Source)
    at java.net.Socket.<init>(Unknown Source)
    at ControlMouseProject.ClientSide.<init>(ClientSide.java:41)
    at ControlMouseProject.ClientSide.main(ClientSide.java:104)

line 41:
     client=new Socket("IP",8080);

Answer 1

禁用服务器PC的个人防火墙。我不得不在我的防病毒软件中禁用我的服务器pc的个人防火墙来解决这个问题。希望它也适合你。

无法使用JAVA连接到另一台PC（另一台IP）

1 个答案: