socket无法使用JAVA连接到另一台pc（另一个IP）

1 月，1 周 Questions & Answers 1147

我正在尝试将客户端类连接到另一台计算机中使用的服务器用另一个IP。。。我在socket中写入了服务器的ip和相同的端口，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，但当我在ip中写入127.0.0.1时，我成功地连接到了服务器

对不起，我的英语不好

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();

    }
    }

例外情况：

    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);

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socket无法使用JAVA连接到另一台pc（另一个IP）

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