SignalR Chat无法与现有WebApp一起使用 [英] SignalR Chat not working with the existing WebApp
本文介绍了SignalR Chat无法与现有WebApp一起使用的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我能够独立地使用SignalR运行聊天应用程序但是在将文件添加到带有母版页的现有Web应用程序之后，聊天会话没有开始它停止工作。我重新安装SignalR Package多次删除它但错误仍然存在。以下是使用的代码：
ASPX：
I am able to run the Chat App using SignalR independently but after adding the files to the existing Web Application with Master Page, Chat session does not begin it stops working.I reinstalled SignalR Package many times removing it but the error still exists. Below is the code used:
ASPX:
<asp:Content ID="MyChatContent2" runat="server" ContentPlaceHolderID="ContentPlaceHolder1">
<script src="/Scripts/jquery-1.8.1.min.js" type="text/javascript"></script>
<script src="/Bootstrap/js/bootstrap.min.js" type="text/javascript"></script>
<script src="/Scripts/jquery.signalR-1.1.2.min.js"></script>
<script src='/signalr/hubs' type="text/javascript"></script>
<script src="/ChatJs/Scripts/jquery.activity-indicator-1.0.0.min.js" type="text/javascript"></script>
<script src="/ChatJs/Scripts/jquery.chatjs.signalradapter.js" type="text/javascript"></script>
<script src="/ChatJs/Scripts/jquery.chatjs.js" type="text/javascript"></script>
<script src="/Scripts/scripts.js" type="text/javascript"></script>
<script src="https://google-code-prettify.googlecode.com/svn/loader/run_prettify.js"></script>
<!--Styles-->
<link rel="stylesheet" type="text/css" href="/ChatJs/Styles/jquery.chatjs.css" />
<link rel="stylesheet" type="text/css" href="/Bootstrap/css/bootstrap.min.css" />
<link rel="stylesheet" type="text/css" href="/Bootstrap/css/bootstrap-responsive.min.css" />
<% if (!this.IsUserAuthenticated)
{ %>
<script type="text/javascript">
function notAutho() {
aler("not autoh.....");
}
</script>
<% } %>
<% if (this.IsUserAuthenticated)
{ %>
<script type="text/javascript">
//$.connection.hub.start();
//$.connection.hub.url = "/signalr"
//$.connection.hub.start().done(init);
var connection = $.hubConnection("/signalr", { useDefaultPath: false });
$(function () {
debugger;
alert("chat is authenticated..");
$.chat({
// your user information
user: {
Id: '<%= this.UserId %>',
Name: '<%= this.UserName %>',
ProfilePictureUrl: '/ChatJs/Images/spotlight photo.png'
},
// text displayed when the other user is typing
typingText: ' is typing...',
// the title for the user's list window
titleText: 'Chat',
// text displayed when there's no other users in the room
emptyRoomText: "There's no one around here. You can still open a session in another browser and chat with yourself :)",
// the adapter you are using
adapter: new SignalRAdapter()
});
});
</script>
<% } %>
<%--</head>
<script type="text/javascript">
$(document).ready(function () {
//joinChatwithHandler();
});
function joinChatwithHandler() {
alert("joinChatConclusionButton calling............ ");
var $userName = $("#userName");
var $empID = $("#empID");
if (!$userName.val() || $userName.val() == $userName.attr("placeHolder")) {
$userName.closest(".control-group").addClass("error");
}
else {
alert("handler is calling............ ");
$.ajax({
url: "../Handlers/ChatService.ashx?action=joinChat&userName=" + $userName.val() + "&empID=" + $empID.val(),
success: function (data) {
window.location.reload(false);
}
});
}
}
</script>
<%-- </form>
</body>
</html>--%>
.CS：
.CS:
protected void Page_Load(object sender, EventArgs e)
{
try
{
LoadChat();
}
catch
{
}
}
private void LoadChat()
{
try
{
userName.Value = Convert.ToString(Session[SessionVariables.FullName]);
empID.Value = Convert.ToString(Session[SessionVariables.emplSequ]);
if (Session[SessionVariables.isChatHandler] == null)
{
ScriptManager.RegisterStartupScript(this, this.GetType(), "chat", "joinChatwithHandler();", true);
Session[SessionVariables.isChatHandler] = "Y";
}
if (Session[SessionVariables.isUserExists] == null)
{
var existingUser = ChatCookieHelperStub.GetDbUserFromCookie(new HttpRequestWrapper(this.Request));
if (existingUser != null)
{
//Session["Name"] = existingUser.FullName;
//Session["id"] = existingUser.Id;
Session[SessionVariables.isUserExists] = "Y";
IsUserAuthenticated = true;
UserId = Convert.ToInt32(Session[SessionVariables.emplSequ]);
UserName = Convert.ToString(Session[SessionVariables.FullName]);
UserProfilePictureUrl = "/ChatJs/Images/spotlight photo.png";
}
}
}
catch
{
}
Startup.cs：
Startup.cs:
using System.Security.Cryptography;
using Microsoft.AspNet.SignalR;
using Microsoft.Owin;
using Owin;
[assembly: OwinStartup(typeof(HRMSUI.Startup))]
namespace HRMSUI
{
public static class Startup
{
public static void Configuration(IAppBuilder app)
{
try
{
CryptoConfig.AddAlgorithm(typeof(SHA256Cng), "System.Security.Cryptography.SHA256");
//app.MapSignalR();
var hubConfiguration = new HubConfiguration();
hubConfiguration.EnableDetailedErrors = true;
hubConfiguration.EnableJavaScriptProxies = false;
app.MapSignalR("/signalr", hubConfiguration);
}
catch
{
}
}
}
}
Route.config：
Route.config:
using System;
using System.Collections.Generic;
using System.Web;
using System.Web.Routing;
using Microsoft.AspNet.FriendlyUrls;
namespace HRMSUI
{
public static class RouteConfig
{
public static void RegisterRoutes(RouteCollection routes)
{
try
{
var settings = new FriendlyUrlSettings();
settings.AutoRedirectMode = RedirectMode.Permanent;
routes.EnableFriendlyUrls(settings);
}
catch
{
}
}
}
}
Web.Config：
Web.Config:
<configuration>
<configsections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirepermission="false" />
<sectiongroup name="dotNetOpenAuth" type="DotNetOpenAuth.Configuration.DotNetOpenAuthSection, DotNetOpenAuth.Core">
<section name="messaging" type="DotNetOpenAuth.Configuration.MessagingElement, DotNetOpenAuth.Core" requirepermission="false" allowlocation="true" />
<section name="reporting" type="DotNetOpenAuth.Configuration.ReportingElement, DotNetOpenAuth.Core" requirepermission="false" allowlocation="true" />
<section name="openid" type="DotNetOpenAuth.Configuration.OpenIdElement, DotNetOpenAuth.OpenId" requirepermission="false" allowlocation="true" />
<section name="oauth" type="DotNetOpenAuth.Configuration.OAuthElement, DotNetOpenAuth.OAuth" requirepermission="false" allowlocation="true" />
</sectiongroup>
</configsections>
<appsettings>
<add key="owin:AppStartup" value="HRMSUI.Startup" />
</appsettings>
<system.web>
<compilation debug="true" targetframework="4.5" />
<httpruntime targetframework="4.5" />
<pages controlrenderingcompatibilityversion="4.0">
<namespaces>
<add namespace="System.Web.Optimization" />
</namespaces>
<controls>
<add assembly="Microsoft.AspNet.Web.Optimization.WebForms" namespace="Microsoft.AspNet.Web.Optimization.WebForms" tagprefix="webopt" />
<add tagprefix="ajaxToolkit" assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" /></controls></pages>
<authentication mode="Forms">
<forms loginUrl="~/Account/Login.aspx" timeout="2880" />
</authentication>
<sessionstate mode="InProc" customprovider="DefaultSessionProvider">
<providers>
<add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionstringname="DefaultConnection" />
</providers>
</sessionstate>
</system.web>
<runtime>
<assemblybinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentassembly>
<assemblyidentity name="DotNetOpenAuth.Core" publickeytoken="2780ccd10d57b246" />
<bindingredirect oldversion="0.0.0.0-4.3.0.0" newversion="4.3.0.0" />
</dependentassembly>
<dependentassembly>
<assemblyidentity name="DotNetOpenAuth.AspNet" publickeytoken="2780ccd10d57b246" />
<bindingredirect oldversion="0.0.0.0-4.3.0.0" newversion="4.3.0.0" />
</dependentassembly>
<dependentassembly>
<assemblyidentity name="Microsoft.Owin" publickeytoken="31bf3856ad364e35" culture="neutral" />
<bindingredirect oldversion="0.0.0.0-2.1.0.0" newversion="2.1.0.0" />
</dependentassembly>
<dependentassembly>
<assemblyidentity name="Microsoft.AspNet.SignalR.Core" publickeytoken="31bf3856ad364e35" culture="neutral" />
<bindingredirect oldversion="0.0.0.0-2.0.3.0" newversion="2.0.3.0" />
</dependentassembly>
<dependentassembly>
<assemblyidentity name="WebGrease" publickeytoken="31bf3856ad364e35" culture="neutral" />
<bindingredirect oldversion="0.0.0.0-1.5.2.14234" newversion="1.5.2.14234" />
</dependentassembly>
<dependentassembly>
<assemblyidentity name="HtmlAgilityPack" publickeytoken="bd319b19eaf3b43a" culture="neutral" />
<bindingredirect oldversion="0.0.0.0-1.4.0.0" newversion="1.4.0.0" />
</dependentassembly>
<dependentassembly>
<assemblyidentity name="Microsoft.WindowsAzure.Storage" publickeytoken="31bf3856ad364e35" culture="neutral" />
<bindingredirect oldversion="0.0.0.0-2.1.0.4" newversion="2.1.0.4" />
</dependentassembly>
<dependentassembly>
<!--<assemblyidentity name="Microsoft.Owin.Security" publickeytoken="31bf3856ad364e35" culture="neutral" />
<bindingredirect oldversion="0.0.0.0-2.1.0.0" newversion="2.1.0.0" />-->
<assemblyidentity name="Microsoft.Owin.Security" publickeytoken="31bf3856ad364e35" culture="neutral" />
<bindingredirect oldversion="0.0.0.0-2.1.0.0" newversion="2.1.0.0" />
</dependentassembly>
</assemblybinding>
</runtime>
<entityframework>
<defaultconnectionfactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
</entityframework>
<!-- For Signalr-->
<system.webserver>
<modules runallmanagedmodulesforallrequests="true">
</modules>
</system.webserver>
</configuration>
I get the below error when i try running the Project:
I get the below error when i try running the Project:
Error Caught in
Error in: http://localhost:2256/signalr/hubs
Main Exception: System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.Owin.Mapping.MapMiddleware.<invoke>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at Microsoft.Owin.Host.SystemWeb.Infrastructure.ErrorState.Rethrow()
at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.StageAsyncResult.End(IAsyncResult ar)
at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.EndFinalWork(IAsyncResult ar)
at System.Web.HttpApplication.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Base Exception : System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.Owin.Mapping.MapMiddleware.<invoke>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at Microsoft.Owin.Host.SystemWeb.Infrastructure.ErrorState.Rethrow()
at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.StageAsyncResult.End(IAsyncResult ar)
at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.EndFinalWork(IAsyncResult ar)
at System.Web.HttpApplication.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Please help me with the solution.
[Edit member=\"Tadit\"]
Corrected formatting issues.
Added pre tags.
[/Edit]
推荐答案
.connection.hub.start();
//
.connection.hub.start(); //
.connection.hub.url = \"/signalr\"
//
.connection.hub.url = "/signalr" //
.connection.hub.start().done(init);
var connection =
.connection.hub.start().done(init); var connection =
这篇关于SignalR Chat无法与现有WebApp一起使用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
