这段代码改成可调用函数 ： /*! * ASP.NET SignalR JavaScript Library 2.4.3 * 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['realDataHub'] = this.createHubProxy('realDataHub'); proxies['realDataHub'].client = { }; proxies['realDataHub'].server = { send: function (name, message) { return proxies['realDataHub'].invoke.apply(proxies['realDataHub'], $.merge(["Send"], $.makeArray(arguments))); } }; return proxies; }; signalR.hub = $.hubConnection("/signalr", { useDefaultPath: false }); $.extend(signalR, signalR.hub.createHubProxies()); }(window.jQuery, window));

您可以将上述代码封装成一个可调用函数，例如：

function connectToHub() {
  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;
  var hubConnection = signalR.hubConnection("/signalr", { useDefaultPath: false });
  var proxies = {};
  
  function makeProxyCallback(hub, callback) {
    return function () {
      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)) {
          continue;
        }
        if (shouldSubscribe) {
          subscriptionMethod = hub.on;
        } else {
          subscriptionMethod = hub.off;
        }
        for (memberKey in hub.client) {
          if (hub.client.hasOwnProperty(memberKey)) {
            memberValue = hub.client[memberKey];
            if (!$.isFunction(memberValue)) {
              continue;
            }
            subscriptionMethod.call(hub, memberKey, makeProxyCallback(hub, memberValue), memberValue);
          }
        }
      }
    }
  }
  
  hubConnection.starting(function () {
    registerHubProxies(proxies, true);
    this._registerSubscribedHubs();
  }).disconnected(function () {
    registerHubProxies(proxies, false);
  });
  
  proxies['realDataHub'] = hubConnection.createHubProxy('realDataHub');
  proxies['realDataHub'].client = {};
  proxies['realDataHub'].server = {
    send: function (name, message) {
      return proxies['realDataHub'].invoke.apply(proxies['realDataHub'], $.merge(["Send"], $.makeArray(arguments)));
    }
  };
  
  return proxies;
}

然后您可以在需要连接 SignalR 的地方调用该函数，例如：

var hubProxies = connectToHub();
hubProxies.realDataHub.server.send('John', 'Hello!');