TcpClient写入错误 [英] TcpClient write error

问题描述

您好我正在关注Code Project中的文章。我在客户端尝试将数据发送到服务器（write（）方法）时收到错误。这是服务器（TcpListener）代码。我将端口号从作者使用的8001更改为其他一些数字
（44300），因为8001不起作用。监听器启动后显示

Hi I am following article in Code Project. I am getting error at the point where client tries to send data to server (write() method). this is the server (TcpListener) code. I made change in port number from 8001 the author is using to some other number (44300) because 8001 did not work. When the Listener is started it shows

服务器在端口8001运行...

本地端点是  ：192.168.56.1：44300

等待连接.....

The server is running at port 8001...
The local End point is  :192.168.56.1:44300
Waiting for a connection.....

当客户端运行时，它会在几分钟后显示错误：

When the client is run it shows error after a couple of minutes:

连接.....

已连接

输入要传输的字符串：hellow server

传输.....

错误.....   在System.Net.Sockets.NetworkStream.Read（Byte []缓冲区，Int32 offs

et，Int32 size）

    at cnt中的clnt.Main（）：\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ b $ b按任意键继续。 。 。

Connecting.....
Connected
Enter the string to be transmitted : hellow server
Transmitting.....
Error.....    at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offs
et, Int32 size)
   at clnt.Main() in c:\users\user\Source\Repos\ConsoleApp2\ConsoleApp2\Program.
cs:line 34
Press any key to continue . . .

我需要帮助：找到错误原因的任何调试思路？我试图关闭防火墙，但它没有帮助。

I need help: any debugging ideas to find the cause of error? I tried to turn off Firewall but it did not help.

using System;
using System.Text;
using System.Net;
using System.Net.Sockets;

public class serv
{
    public static void Main()
    {
        try
        {
            IPAddress ipAd = IPAddress.Parse("192.168.56.1"); //use local m/c IP address, and use the same in the client

            /* Initializes the Listener */
            TcpListener myList = new TcpListener(ipAd, 44300);

            /* Start Listeneting at the specified port */
            myList.Start();

            Console.WriteLine("The server is running at port 8001...");
            Console.WriteLine("The local End point is  :" + myList.LocalEndpoint);
            Console.WriteLine("Waiting for a connection.....");

            Socket s = myList.AcceptSocket();
            Console.WriteLine("Connection accepted from " + s.RemoteEndPoint);

            byte[] b = new byte[100];
            int k = s.Receive(b);
            Console.WriteLine("Recieved...");
            for (int i = 0; i < k; i++)
                Console.Write(Convert.ToChar(b[i]));

            ASCIIEncoding asen = new ASCIIEncoding();
            s.Send(asen.GetBytes("The string was recieved by the server."));
            Console.WriteLine("\nSent Acknowledgement");
            /* clean up */
            s.Close();
            myList.Stop();

        }
        catch (Exception e)
        {
            Console.WriteLine("Error..... " + e.StackTrace);
        }
    }

}

using System;
using System.IO;
using System.Net;
using System.Text;
using System.Net.Sockets;


public class clnt
{

    public static void Main()
    {

        try
        {
            TcpClient tcpclnt = new TcpClient();
            Console.WriteLine("Connecting.....");

            tcpclnt.Connect("192.168.56.1", 8001); // use the ipaddress as in the server program

            Console.WriteLine("Connected");
            Console.Write("Enter the string to be transmitted : ");

            String str = Console.ReadLine();
           NetworkStream stm = tcpclnt.GetStream();

            ASCIIEncoding asen = new ASCIIEncoding();
            byte[] ba = asen.GetBytes(str);
            Console.WriteLine("Transmitting.....");

            stm.Write(ba, 0, ba.Length);
            
            byte[] bb = new byte[100];
            int k = stm.Read(bb, 0, 100);

            for (int i = 0; i < k; i++)
                Console.Write(Convert.ToChar(bb[i]));

            tcpclnt.Close();
        }

        catch (Exception e)
        {
            Console.WriteLine("Error..... " + e.StackTrace);
        }
    }

推荐答案

在两个程序中使用相同的有效地址和端口。

对于本地测试，您可以使用
IPAddress.Loopback 地址。

For local tests, you can use the IPAddress.Loopback address.

改善错误报告：

。 。 。

catch（例外e）

{

   Console.WriteLine（" Error：" + e）;


}

. . .
catch( Exception e )
{
   Console.WriteLine( "Error: " + e );
}

显示错误消息。

这篇关于TcpClient写入错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！