从SignalR客户端获取返回值

时间:2014-12-02 20:25:30

标签: c# signalr

我有一个SignalR方法,用于向特定客户端发送请求,然后获取返回值。我知道这是不可能的,但客户需要将响应作为单独的消息发送到集线器。

我从集线器外部将消息发送给客户端:

public String GetResponseFromUser(String userId, String request)
{
    // Use requestId to be sure the response is on this request
    var requestId = Guid.NewGuid().ToString();

    var hubContext = GlobalHost.ConnectionManager.GetHubContext<MyHub>();
    hubContext.Clients.User(userId).Request(requestId, request);

    // Wait for client to send response to the Hub's Response method
    var response = ...?

    return response;
}

集线器类

public class MyHub : Hub
{
    public void Response(String requestId, String response)
    {
        // Somehow I want to get the response to the method above
    }
}

如何等待客户端响应并在集线器外的方法中使用此响应?

1 个答案:

答案 0 :(得分:3)

连接集线器后,您必须等待并听取答案:

hubContext.On("Response", (requestId, response) =>
                {
                    // do something 
                }
               );

当然,你必须保持这种联系。