c#中websocket接口后端如何调用

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猴君
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在C#中实现WebSocket接口后端的话,可以使用ASP.NET Core中的WebSocket类库来实现。以下是一个简单的示例代码:

using System; using System.Net.WebSockets; using System.Threading; using System.Threading.Tasks; using Microsoft.AspNetCore.Http;  public class WebSocketHandler {     private readonly WebSocket _socket;      public WebSocketHandler(WebSocket socket)     {         _socket = socket;     }      public async Task HandleWebSocketRequest(HttpContext context)     {         var buffer = new byte[1024];         WebSocketReceiveResult result = await _socket.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);          while (!result.CloseStatus.HasValue)         {             // 处理接收到的数据             string message = System.Text.Encoding.UTF8.GetString(buffer);             Console.WriteLine($"Received message: {message}");              // 发送响应数据             string responseMessage = "Hello from server!";             byte[] responseBuffer = System.Text.Encoding.UTF8.GetBytes(responseMessage);             await _socket.SendAsync(new ArraySegment<byte>(responseBuffer), WebSocketMessageType.Text, true, CancellationToken.None);              result = await _socket.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);         }          await _socket.CloseAsync(result.CloseStatus.Value, result.CloseStatusDescription, CancellationToken.None);     } } 

在你的ASP.NET Core应用程序中,可以通过一个中间件来处理WebSocket请求:

app.UseWebSockets(); app.Use(async (context, next) => {     if (context.WebSockets.IsWebSocketRequest)     {         WebSocket webSocket = await context.WebSockets.AcceptWebSocketAsync();         var handler = new WebSocketHandler(webSocket);         await handler.HandleWebSocketRequest(context);     }     else     {         await next();     } }); 

在这个示例中,我们创建了一个WebSocketHandler类来处理WebSocket连接,并在中间件中进行处理。当接收到WebSocket请求时,会创建一个新的WebSocketHandler实例,并调用HandleWebSocketRequest方法来处理WebSocket消息。

希望这个简单示例可以帮助你在C#中实现WebSocket接口后端。

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