SocketException让我发疯:( [英] SocketException driving me crazy:(

问题描述

我是c＃的新手。
当我尝试以下程序（一个非常简单的tcpserver）时，我收到以下错误信息。

未处理的异常：System.Net.Sockets.SocketException：试图以一种禁止其访问权限的方式访问套接字

在MainClass.Main（）上的System.Net.Sockets.Socket.Listen（Int32 backlog）
>这是代码..

使用System;
使用System.Net;
使用System.Net.Sockets;
使用System.Text;

类MainClass
{
public static void Main（）
{

IPEndPoint ip = new IPEndPoint（IPAddress.Any，9999）;
Socket socket = new Socket（AddressFamily.InterNetwork，SocketType .Stream，ProtocolType.Tcp）;

socket.Bind（ip）;
socket.Listen（10）;
Console.WriteLine（" Waiting for a client ..."） ;
Socket client = socket.Accept（）;
IPEndPoint clientep =（IPEndPoint）client.RemoteEndPoint;
Console.Writ eLine（"与{0}在端口{1}连接"，clientep.Address，clientep.Port）;

string welcome =" Welcome";
byte [] data = new byte [1024];
data = Encoding.ASCII.GetBytes（welcome）;
client.Send（data，data.Length，SocketFlags.None）;

Console.WriteLine（" Disconnected from {0}"，clientep.Address）;
client.Close（）;
socket.Close（）;
}

解决方案

尝试运行Administrator 特权下的代码帐户

I'm new to c#.
When I try the following program (a very simple tcpserver) I get the following error msg..

Unhandled Exception: System.Net.Sockets.SocketException: An attempt was made to
access a socket in a way forbidden by its access permissions
   at System.Net.Sockets.Socket.Listen(Int32 backlog)
   at MainClass.Main()

This is the code..

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

class MainClass
{
   public static void Main()
   {

      IPEndPoint ip = new IPEndPoint(IPAddress.Any,9999);
      Socket socket = new Socket(AddressFamily.InterNetwork,SocketType.Stream, ProtocolType.Tcp);

      socket.Bind(ip);
      socket.Listen(10);
      Console.WriteLine("Waiting for a client...");
      Socket client = socket.Accept();
      IPEndPoint clientep =(IPEndPoint)client.RemoteEndPoint;
      Console.WriteLine("Connected with {0} at port {1}",clientep.Address, clientep.Port);
     
      string welcome = "Welcome";
      byte[] data = new byte[1024];
      data = Encoding.ASCII.GetBytes(welcome);
      client.Send(data, data.Length,SocketFlags.None);

      Console.WriteLine("Disconnected from {0}",clientep.Address);
      client.Close();
      socket.Close();
   }
}

解决方案

Try running the code under Administrator privileged account

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