在使用C#和ASP.Net Core2.2连接和侦听外部WebSocket URL时,您可以按照以下步骤进行操作:
services.AddWebSocketManager();
using System;
using System.Collections.Concurrent;
using System.Net.WebSockets;
using System.Threading;
using System.Threading.Tasks;
namespace YourNamespace
{
public class WebSocketManager
{
private ConcurrentDictionary<string, WebSocket> _sockets = new ConcurrentDictionary<string, WebSocket>();
public async Task HandleWebSocketConnection(HttpContext context, WebSocket webSocket)
{
// 获取WebSocket连接的唯一标识符
string socketId = Guid.NewGuid().ToString();
// 将WebSocket连接添加到管理器中
_sockets.TryAdd(socketId, webSocket);
// 开始监听WebSocket消息
await Receive(socketId, webSocket);
}
private async Task Receive(string socketId, WebSocket webSocket)
{
byte[] buffer = new byte[1024 * 4];
while (webSocket.State == WebSocketState.Open)
{
WebSocketReceiveResult result = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);
if (result.MessageType == WebSocketMessageType.Close)
{
// 如果收到关闭消息,从管理器中移除WebSocket连接
_sockets.TryRemove(socketId, out _);
await webSocket.CloseAsync(WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None);
}
else
{
// 处理接收到的消息
// 在这里可以根据业务需求进行相应的处理
}
}
}
}
}
app.UseWebSockets();
app.Map("/websocket", appBuilder =>
{
appBuilder.Use(async (context, next) =>
{
if (context.WebSockets.IsWebSocketRequest)
{
WebSocket webSocket = await context.WebSockets.AcceptWebSocketAsync();
WebSocketManager webSocketManager = (WebSocketManager)context.RequestServices.GetService(typeof(WebSocketManager));
await webSocketManager.HandleWebSocketConnection(context, webSocket);
}
else
{
await next();
}
});
});
using System;
using System.Net.WebSockets;
using System.Threading;
using System.Threading.Tasks;
namespace YourNamespace
{
public class WebSocketClient
{
public async Task ConnectAndListen(string url)
{
using (ClientWebSocket webSocket = new ClientWebSocket())
{
await webSocket.ConnectAsync(new Uri(url), CancellationToken.None);
byte[] buffer = new byte[1024 * 4];
while (webSocket.State == WebSocketState.Open)
{
WebSocketReceiveResult result = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);
if (result.MessageType == WebSocketMessageType.Close)
{
await webSocket.CloseAsync(WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None);
}
else
{
// 处理接收到的消息
// 在这里可以根据业务需求进行相应的处理
}
}
}
}
}
}
using Microsoft.AspNetCore.Mvc;
using System.Threading.Tasks;
namespace YourNamespace.Controllers
{
[Route("api/[controller]")]
[ApiController]
public class WebSocketController : ControllerBase
{
private readonly WebSocketClient _webSocketClient;
public WebSocketController(WebSocketClient webSocketClient)
{
_webSocketClient = webSocketClient;
}
[HttpGet]
public async Task<IActionResult> ConnectAndListen(string url)
{
await _webSocketClient.ConnectAndListen(url);
return Ok();
}
}
}
以上代码示例中,WebSocketManager类用于管理WebSocket连接,Startup.cs文件中的配置用于处理WebSocket连接请求,WebSocketClient类用于连接和侦听外部WebSocket URL,WebSocketController类用于处理API请求。
请注意,这只是一个基本的示例,您可能需要根据实际需求进行适当的修改和扩展。另外,您还可以根据具体的业务需求,使用腾讯云的相关产品来增强您的应用程序的功能和性能,例如腾讯云的WebSocket服务、云服务器等。具体的产品信息和介绍可以参考腾讯云官方网站。
希望以上信息对您有所帮助!
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