Question

我正在使用MVC 5，我有这样的集线器类：

 public class EventHub : Hub
{
    public void broadcastEvent(string userId = "",
                               string source = "",
                               string application = "",
                               string type = "",
                               string importance = "",
                               string message = "",
                               string timeStamp = "",
                               string stackTrace = "",
                               string exceptionMessage = "",
                               string innerExceptionMessage = "",
                               string objectContext = "",
                               string serverName = "",
                               string actionResult = "")
    {
        Clients.All.broadcastEvent(userId, source, application, type, importance, message, timeStamp, stackTrace, exceptionMessage, innerExceptionMessage, objectContext, serverName);
    }
}

我在我的网页上有这个代码：

 $(function () {
    var app = $.connection.eventHub;
    app.client.broadcastEvent = function (userId,
                                source,
                                application, 
                                type,
                                importance,
                                message,
                                timeStamp,
                                stackTrace,
                                exceptionMessage,
                                innerExceptionMessage,
                                objectContext,
                                serverName,
                                actionResult) {
        // Html encode display name and message. 
        var encodedName = $('<div />').text(name).html();
        var encodedMsg = $('<div />').text(message).html();
        // Add the message to the page.
        $('.row').append("div>asfdasdf</div>");
    };

    $.connection.hub.start().done(function () {
    });
});

我还在项目的启动中添加了MapHub。我的问题是：

在服务器端，我想在创建新事件后立即更新网页。如何按需触发广播方法？我不能只创建集线器的实例并调用方法。

Answer 1

您可以通过GlobalHost访问中心上下文，例如：

var context = GlobalHost.ConnectionManager.GetHubContext<MyHub>();
context.Clients.All.broadcastEvent(...)

signalR使用新项目更新客户端网页

1 个答案: