Question

编辑：端口135似乎有效。八九不离十。它似乎没有拒绝连接，它让我在控制台中写东西，虽然我改变线时没有任何反应。我会尝试更多的东西

我正试图这样做：

import java.net.*;
import java.io.*;
public class MainProgram {

    private static String host;
    public static void main(String[] args) 
    {
        host = "localhost";

        for (int i = 1; i < 10001 ; i++)
        {
            try {
                Socket socket = new Socket(host , i);
            }catch (UnknownHostException e){
                e.printStackTrace();
            }catch(IOException e){
                e.printStackTrace();
            }
        }
    }

}

但输出始终是Connection Refused。以下是输出的一部分：

java.net.ConnectException: Connection refused: 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)

有什么方法可以解决这个问题吗？我的远程Java应用程序的调试配置如下所示：

http://i.stack.imgur.com/Vbm0l.png

我安装了WAMP服务器，也许我应该使用它？我不知道。

Answer 1

使用您的本地IP地址，而不是使用＆＃34; local＆＃34; 使用＆＃34; cmd＆gt; IPCONFIG＆＃34;找到你的localhost的IP地址，然后按如下所示添加：

import java.net.*;
import java.io.*;
public class MainProgram {

private static String host;
public static void main(String[] args) 
{
    host = "192.168.0.13";

    for (int i = 1; i < 10001 ; i++)
    {
        try {
            Socket socket = new Socket(host , i);
        }catch (UnknownHostException e){
            e.printStackTrace();
        }catch(IOException e){
            e.printStackTrace();
          }
      }
  }

}

请记住，这是我本地主机的IP！你可以成为别的东西。

Answer 2

您的localhost中没有监听serverocket。您需要运行服务器套接字来侦听将由客户端连接的端口。例如：

Server Socket:
+++++++++++++++++++++++++++++++++++++++++++

    enter code here

package com.jdbc.test.net;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class Server {
     public static void main(String[] args) {
      Socket socket=null;
      BufferedReader br=null;
      PrintWriter pw=null;
      try {

       ServerSocket server=new ServerSocket(3081);
       while(true){
        socket=server.accept();
        System.out.println("server:"+socket.getRemoteSocketAddress());
       }

      } catch (Exception e) {
       // TODO Auto-generated catch block
       e.printStackTrace();
      }finally{

       try {
        pw.close();
        br.close();
        socket.close();
       } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
       }
      }

     }
    }

+++++++++++++++++++++++++++++++++++++++++++

Cleint Socket:
`enter code here`
+++++++++++++++++++++++++++++++++++++++++++
package com.jdbc.test;

import java.net.*;

import java.io.*;
public class MainProgram {

    private static String host;
    public static void main(String[] args) 
    {
        host = "localhost";

        //for (int i = 10000; i < 10001 ; i++)
        {
            try {
                Socket socket = new Socket(host , 3081);
            }catch (UnknownHostException e){
                e.printStackTrace();
            }catch(IOException e){
                e.printStackTrace();
            }
        }
    }

}

+++++++++++++++++++++++++++++++++++++++++++

Answer 3

如果你有任何想法，请不要开始阅读Socket Tutorial。

我建议您编写自己的服务器套接字来监听客户端代码的连接（类似于您编写的代码）。使用高于5000的高端口号码以避免保留端口和计算机程序可能使用的其他端口。

无法在localhost上运行Java应用程序

3 个答案: