带有 Uno 平台应用程序的 Socket Err 10013

Question

我的网络和笔记本电脑中都有 Beamer。

我制作了一个控制台应用程序来通过 TCP/IP 协议打开投影仪 on/off，它工作正常。

现在我想要一个花哨的 Uno GUI，背后有相同的代码，但令人惊讶的是现在我得到了一个套接字异常：

10013: An attempt was made to access a socket in a way forbidden by its access permissions

我已经连续 3 天用谷歌搜索并尝试了很多东西，包括

防火墙settings/turn关闭
权限组编辑
奇怪的代码我实在无法测试。我正在使用 Visual Studio 2019 如果有人需要，请输入以下代码：

如果有人能帮助我，我将不胜感激。

这里是代码对比：

控制台代码：

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

 namespace Test
 {
     class Programm
     {
         static void Main(String[] args)
         {

     Console.WriteLine("START Enter");
     Console.ReadLine();

     const int Port = 7142;
     const string IPv4 = "192.168.10.70";


     IPAddress ipo = IPAddress.Parse(IPv4);
     IPEndPoint ipEo = new IPEndPoint(ipo, Port);

     var endpoint = new IPEndPoint(ipo, Port);
     var socket = new Socket(endpoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp);

     Console.WriteLine("Verbindung wird Aufgebaut mit");
     Console.WriteLine("Adresse: " + IPv4);
     Console.WriteLine("Port: " + Port);

     try
     {
         socket.Connect(endpoint);
     }
     catch(SocketException se)
     {

         Console.WriteLine("Verbindung Gescheitert");
         Console.WriteLine(se.ErrorCode + ": " + se.Message);
         Console.ReadLine();

     }



     Console.WriteLine("Verbindung hergestellt");
     Console.WriteLine("Befehl senden?");
     Console.ReadLine();
     Console.WriteLine("Befehl wird gesendet");


     var networkstream = new NetworkStream(socket, true);


     var msg = "\x02\x01\x00\x00\x00\x03";


     var buffer = System.Text.Encoding.UTF8.GetBytes(msg);


     foreach (int i in buffer)
     {
         Console.Write("{0} ", i);
     }


     networkstream.Write(buffer, 0, buffer.Length);

     var response = new byte[1024];
     var bytesRead = networkstream.Read(response, 0, response.Length);
     var responseStr = System.Text.Encoding.UTF8.GetString(response);

     Console.WriteLine("");
     Console.WriteLine("Empfangen wurde:");

     foreach (int i in response)
     {
         Console.Write("{0} ", i);
     }


     Console.ReadLine();


 }
}
}

现在 UNO 应用代码：

 using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices.WindowsRuntime;
 using Windows.Foundation;
 using Windows.Foundation.Collections;
 using Windows.UI.Xaml;
 using Windows.UI.Xaml.Controls;
 using Windows.UI.Xaml.Controls.Primitives;
 using Windows.UI.Xaml.Data;
 using Windows.UI.Xaml.Input;
 using Windows.UI.Xaml.Media;
 using Windows.UI.Xaml.Navigation;

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


 namespace Test
 { 



     public sealed partial class MainPage : Page
     {


         public MainPage()
         {
             this.InitializeComponent();



         }

         public void Ein_Click(object sender, RoutedEventArgs e)
         {
     const int Port = 7142;
     const string IPv4 = "192.168.10.70";


     IPAddress ipo = IPAddress.Parse(IPv4);
     IPEndPoint ipEo = new IPEndPoint(ipo, Port);

     var endpoint = new IPEndPoint(ipo, Port);
     var socket = new Socket(endpoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp);

     try
     {
         socket.Connect(endpoint);
         System.Diagnostics.Debug.WriteLine("Verbindung Wurde aufgebaut");
         var networkstream = new NetworkStream(socket, true);
         var msg = "\x02\x00\x00\x00\x00\x02";
         var buffer = System.Text.Encoding.UTF8.GetBytes(msg);
         networkstream.Write(buffer, 0, buffer.Length);
         socket.Disconnect(true);
     }
     catch (SocketException se)
     {


         Testblock1.Text = se.ErrorCode + ": " + se.Message;
         System.Diagnostics.Debug.WriteLine("Verbindung Gescheitert");
         System.Diagnostics.Debug.WriteLine(se.ErrorCode + ": " + se.Message);
     }
 }

Answer 1

您似乎以本地网络 IP 地址为目标，这需要在您的 UWP 应用项目中声明特殊权限。在 UWP 项目中应该有一个 Package.appxmanifest 文件。双击它和 select Capabilities 选项卡。然后在下面的列表中选中 Private Networks (Client & Server).

旁边的框

带有 Uno 平台应用程序的 Socket Err 10013

Socket Err 10013 with Uno Platform apps

c#

sockets

uno-platform