升级signalR和.NET版本后，我遇到了很多困难。以前我有1.XX版本，现在我有2.4.0信号R版本。
这个问题与 - https://github.com/SignalR/SignalR/issues/4339直接相关
但升级后信号R不起作用。
现在的问题是客户端功能无法调用。
我刚试过这个：Signalr doesn't call client side functions
并根据正确的答案修复它：
在$ .connection.hub.start之前的init中调用_subscribe方法。
后来我对这个问题进行了更深入的研究，并在我的signalr.js下面添加了console.log
connection.socket.onmessage = function (event) {
var data;
try {
console.log(event.data);
data = connection._parseResponse(event.data);
}
catch (error) {
transportLogic.handleParseFailure(connection, event.data, error, onFailed, event);
console.log("socket error" + event.data);
return;
}
if (data) {
transportLogic.processMessages(connection, data, onSuccess);
}
};
每个人加入会议后 - >会议开始并要求投票（这个地方我们应该叫signalR）
从投票询问人一方我看到这样的控制台日志：
普通用户（投票人控制台日志如下所示：
这是来自Firefox - 另一个用户：
我认为它已经触发了 - 集线器'NotificationHub'上的客户端集线器事件'sendOnlineMeetingVoteRequest'。
它已经达到了服务器端功能，但问题是它永远不会碰到这部分代码：
notificationHub.client.sendOnlineMeetingVoteRequest = function (token, meetingId, meetingVoteId) {
debugger;
if (token == '@Model.Organization' && '@Model.MeetingId' == meetingId) {
ShowMeetingOnlineMeetingVotePopup(meetingId, meetingVoteId);
}
};
我经历了http://localhost:33852/signalr/hubs
/*!
* ASP.NET SignalR JavaScript Library v2.3.0-rtm
* http://signalr.net/
*
* Copyright (c) .NET Foundation. All rights reserved.
* Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
*
*/
/// <reference path="..\..\SignalR.Client.JS\Scripts\jquery-1.6.4.js" />
/// <reference path="jquery.signalR.js" />
(function ($, window, undefined) {
/// <param name="$" type="jQuery" />
"use strict";
if (typeof ($.signalR) !== "function") {
throw new Error("SignalR: SignalR is not loaded. Please ensure jquery.signalR-x.js is referenced before ~/signalr/js.");
}
var signalR = $.signalR;
function makeProxyCallback(hub, callback) {
return function () {
// Call the client hub method
callback.apply(hub, $.makeArray(arguments));
};
}
function registerHubProxies(instance, shouldSubscribe) {
var key, hub, memberKey, memberValue, subscriptionMethod;
for (key in instance) {
if (instance.hasOwnProperty(key)) {
hub = instance[key];
if (!(hub.hubName)) {
// Not a client hub
continue;
}
if (shouldSubscribe) {
// We want to subscribe to the hub events
subscriptionMethod = hub.on;
} else {
// We want to unsubscribe from the hub events
subscriptionMethod = hub.off;
}
// Loop through all members on the hub and find client hub functions to subscribe/unsubscribe
for (memberKey in hub.client) {
if (hub.client.hasOwnProperty(memberKey)) {
memberValue = hub.client[memberKey];
if (!$.isFunction(memberValue)) {
// Not a client hub function
continue;
}
// Use the actual user-provided callback as the "identity" value for the registration.
subscriptionMethod.call(hub, memberKey, makeProxyCallback(hub, memberValue), memberValue);
}
}
}
}
}
$.hubConnection.prototype.createHubProxies = function () {
var proxies = {};
this.starting(function () {
// Register the hub proxies as subscribed
// (instance, shouldSubscribe)
registerHubProxies(proxies, true);
this._registerSubscribedHubs();
}).disconnected(function () {
// Unsubscribe all hub proxies when we "disconnect". This is to ensure that we do not re-add functional call backs.
// (instance, shouldSubscribe)
registerHubProxies(proxies, false);
});
proxies['NotificationHub'] = this.createHubProxy('NotificationHub');
proxies['NotificationHub'].client = { };
proxies['NotificationHub'].server = {
sendMeetingStartMessage: function (token, meetingId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendMeetingStartMessage"], $.makeArray(arguments)));
},
sendMeetingStopMessage: function (token, meetingId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendMeetingStopMessage"], $.makeArray(arguments)));
},
sendMeetingTreeRefreshRequest: function (token, meetingId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendMeetingTreeRefreshRequest"], $.makeArray(arguments)));
},
sendMessage: function (token, meetingId, agendaGroupItemId, motionId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendMessage"], $.makeArray(arguments)));
},
sendOnlineMeetingVoteCloseRequest: function (token, meetingId, meetingVoteId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendOnlineMeetingVoteCloseRequest"], $.makeArray(arguments)));
},
sendOnlineMeetingVoteRequest: function (token, meetingId, meetingVoteId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendOnlineMeetingVoteRequest"], $.makeArray(arguments)));
},
sendOnlineVoteCloseRequest: function (token, meetingId, agendaGroupItemId, motionId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendOnlineVoteCloseRequest"], $.makeArray(arguments)));
},
sendOnlineVoteRequest: function (token, meetingId, agendaGroupItemId, motionId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendOnlineVoteRequest"], $.makeArray(arguments)));
},
sendOnlineVoteResult: function (token, meetingId, agendaGroupItemId, motionId, selectedVotingOptionId) {
return proxies['NotificationHub'].invoke.apply(proxies['NotificationHub'], $.merge(["sendOnlineVoteResult"], $.makeArray(arguments)));
}
};
return proxies;
};
signalR.hub = $.hubConnection("/signalr", { useDefaultPath: false });
$.extend(signalR, signalR.hub.createHubProxies());
}(window.jQuery, window));
所以我也没有发现任何错误。尽管如此，我无法弄清楚为什么会发生这种情况，但我经历了使用signalR 2.0.3.0版本的示例项目
我去参考并注意到这个参考--Microsoft.AspNet.SignalR.Owin不包含在我下载的示例项目中。
我进一步调查并发现了这个：
'以下方法或属性之间的调用不明确'如果未删除对Microsoft.AspNet.SignalR.Owin的引用，则会发生此错误。该软件包已弃用;必须删除引用，并且必须卸载1.x版本的SelfHost软件包。 （https://docs.microsoft.com/en-us/aspnet/signalr/overview/releases/upgrading-signalr-1x-projects-to-20）
我需要删除吗？在我的网络配置中，没有这样的代码。
我只是简单地从另一个地方调用这个功能 - 关于我们页面。只添加相关的脚本和功能。从那个地方来看，它奏效了。
之后，我更改了一些脚本并解决了这个问题。
主要的是我没有得到任何错误或任何东西。事情看起来一直很有效。但由于某些脚本放置，它不起作用。