/// <summary>
/// 无论是SuperSocket还是WebSocket都需要心跳包，需要健康检查，每隔多长时间去发送一条消息，浏览器定时发送消息给服务器，
/// 服务器接收到某一条特定的消息之后，马上回复给浏览器，那就表示连接是正常的；否则就需要去重新连接，其实就是短信重连；
/// </summary>
/// <param name="aspNetWebSocketContext"></param>
/// <returns></returns>
public async Task handSocket(AspNetWebSocketContext aspNetWebSocketContext)
{
WebSocket socket = aspNetWebSocketContext.WebSocket;
//保存起来
SocketManger.AddSocket(_name, Guid.NewGuid().ToString(), socket);
CancellationToken token = new CancellationToken();
while (socket.State == WebSocketState.Open)
{
ArraySegment <byte> buffer = new ArraySegment <byte>(new byte[8192]);
WebSocketReceiveResult result = await socket.ReceiveAsync(buffer, token);
string userMessage = Encoding.UTF8.GetString(buffer.Array, 0, result.Count);
if (!string.IsNullOrEmpty(userMessage))
{
//前端调用关闭事件
if (result.MessageType == WebSocketMessageType.Close)
{
//如果是群聊的话，则要把该用户从Socket的list中移除
await socket.CloseAsync(WebSocketCloseStatus.NormalClosure, string.Empty, token);
}
else
{
SocketManger.SendOne(userMessage, token);
}
}
}
}
/// <summary>
/// ！！！注意：在Configure方法中添加 app.UseWebSockets();
///
/// core webSocket 此demo暂未实现，获取信息时老是报链接已关闭
/// 不获取信息，仅发送信息没问题
///
/// </summary>
public async void MyWebSocket(string name)
{
if (base.HttpContext.WebSockets.IsWebSocketRequest)
{
System.Net.WebSockets.WebSocket socket = await HttpContext.WebSockets.AcceptWebSocketAsync();
//保存起来
SocketManger.AddSocket(name, Guid.NewGuid().ToString(), socket);
CancellationToken token = new CancellationToken();
string userMessage2 = await ReceiveStringAsync(socket);
//while (socket.State == WebSocketState.Open)
//{
// //ArraySegment<byte> buffer = new ArraySegment<byte>(new byte[8192]);
// //WebSocketReceiveResult result = await socket.ReceiveAsync(buffer, token);
// //string userMessage = Encoding.UTF8.GetString(buffer.Array, 0, result.Count);
// string userMessage = await ReceiveStringAsync(socket);
// if (!string.IsNullOrEmpty(userMessage))
// {
// //if (result.MessageType == WebSocketMessageType.Close)
// //{
// //}
// //else
// //{
// SocketManger.SendOne(userMessage, token);
// //}
// }
//}
}
else
{
await HttpContext.Response.WriteAsync("我不处理");
}
}
