Sam*_*Sam 23 asp.net-mvc-4 signalr angularjs single-page-application
我可以让本教程在新项目中工作,但不能在我现有的项目中工作.
我的项目是一个ASP.Net MVC 4 Web应用程序,在web.config文件中具有以下属性:
<appSettings>
<add key="webpages:Enabled" value="true"/>
</appSettings>
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这是因为我的应用程序是单页面应用程序,它在客户端使用AngularJS.我的应用程序中唯一的页面是index.cshtml,我已经为signalR添加了相关的代码:
<!-- signalR chat -->
<script src="~/Scripts/jquery.signalR-1.0.0.js"></script>
<!--Reference the autogenerated SignalR hub script. -->
<script src="/signalr/hubs"></script>
<!--Add script to update the page and send messages.-->
<script type="text/javascript">
$(function () {
// Declare a proxy to reference the hub.
var chat = $.connection.chatHub;
// Create a function that the hub can call to broadcast messages.
chat.client.broadcastMessage = function (name, message) {
// Html encode display name and message.
var encodedName = $('<div />').text(name).html();
var encodedMsg = $('<div />').text(message).html();
// Add the message to the page.
$('#discussion').append('<li><strong>' + encodedName
+ '</strong>: ' + encodedMsg + '</li>');
};
// Get the user name and store it to prepend to messages.
$('#displayname').val(prompt('Enter your name:', ''));
// Set initial focus to message input box.
$('#message').focus();
// Start the connection.
$.connection.hub.start().done(function () {
$('#sendmessage').click(function () {
// Call the Send method on the hub.
chat.server.send($('#displayname').val(), $('#message').val());
// Clear text box and reset focus for next comment.
$('#message').val('').focus();
});
});
});
</script>
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然后我有了ChatHub.cs文件:
public class ChatHub : Hub
{
public void Send(string name, string message)
{
// Call the broadcastMessage method to update clients.
Clients.All.broadcastMessage(name, message);
}
}
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最后在global.asax中:
protected void Application_Start()
{
RouteTable.Routes.MapHubs();
BundleConfig.RegisterBundles(BundleTable.Bundles);
}
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当我运行应用程序时,不会生成/ signalr/hubs文件.我在请求文件时得到404,它崩溃了:
chat.client.broadcastMessage = function (name, message) { ....
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因为聊天是空的,因为上一行找不到chatHub:
var chat = $.connection.chatHub;
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有谁知道我的代码有什么问题?
UPDATE
我通过更改行解决了我的问题::
<script src="/signalr/hubs"></script>
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至
<script src="~/signalr/hubs"></script>
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Sam*_*Sam 18
我通过更改行解决了我的问题::
<script src="/signalr/hubs"></script>
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至
<script src="~/signalr/hubs"></script>
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此外,未生成/ signalr/hubs的原因是忘记在OWIN启动配置中映射SignalR.
public class Startup
{
public void Configuration(IAppBuilder appBuilder){
...
appBuilder.MapSignalR();
...
}
...
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