我需要解决异常system.net.sockets.socketexception（0x80004005） [英] i need to solve that exception system.net.sockets.socketexception(0x80004005)

问题描述

system.net.sockets.socketexception（0x80004005）

无法建立连接，因为目标机器主动拒绝了它192.168.1.7:1024

i需要知道什么是问题，如何解决

i尝试ping那个192.168.1.7（这个接入点通过tcp / ip模块取ip）并重播没问题

system.net.sockets.socketexception(0x80004005)
no connection could be made because the target machine actively refused it 192.168.1.7:1024
i need to know what is the problem and how can solve
i try to ping that 192.168.1.7 (this access point take ip through tcp/ ip module )and that replay no problem

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Net.Sockets;
using System.Threading;
using System.Runtime.Remoting.Channels;

namespace simple_tcpclient
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

            Connect("192.168.1.7", "1");
          
        
        }
          public static void Connect(String server, String message) 
{
  try 
  {
    // Create a TcpClient. 
    // Note, for this client to work you need to have a TcpServer  
    // connected to the same address as specified by the server, port 
    // combination.
    int port = 1024;
    TcpClient client = new TcpClient(server, port);

    // Translate the passed message into ASCII and store it as a Byte array.
    Byte[] data = System.Text.Encoding.ASCII.GetBytes(message);         

    // Get a client stream for reading and writing. 
   //  Stream stream = client.GetStream();

    NetworkStream stream = client.GetStream();

    // Send the message to the connected TcpServer. 
    stream.Write(data, 0, data.Length);

    System.Windows.Forms.MessageBox.Show("Sent: {0}" + message); ;         

    // Receive the TcpServer.response. 

    // Buffer to store the response bytes.
    data = new Byte[256];

    // String to store the response ASCII representation.
    String responseData = String.Empty;

    // Read the first batch of the TcpServer response bytes.
    Int32 bytes = stream.Read(data, 0, data.Length);
    responseData = System.Text.Encoding.ASCII.GetString(data, 0, bytes);

    System.Windows.Forms.MessageBox.Show("recieved: {0}"+ responseData); 
      
    // Close everything.
   // stream.Close();         
   // client.Close();         
  } 
  catch (ArgumentNullException e) 
  {
      System.Windows.Forms.MessageBox.Show("ArgumentNullException: {0}"+ e);
  } 
  catch (SocketException e) 
  {
      System.Windows.Forms.MessageBox.Show("SocketException: {0}"+ e);
  }

  System.Windows.Forms.MessageBox.Show("\n Press Enter to continue...");
  Console.Read();

               
}
















        }
    }

推荐答案

您的代码连接到主机的端口1024（192.168.1.7）

Your code connects to port 1024 of the host (192.168.1.7)

int port = 1024;
TcpClient client = new TcpClient(server, port);

根据例外情况 - 此主机上没有服务侦听此端口。



您可以使用telnet程序检查此端口是否已打开

According to exception - no service listens on this port at this host.

You can check if this port is open using telnet program

telnet 192.168.1.7 1024

要解决 - 确保在主机上某些应用程序侦听此端口。

To resolve - ensure, that on host some application listens to this port.

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