c# - OwinStartup 和在 asp.net mvc 的 signalr 中启动

Question

我对 asp.net mvc 中的 SignalR 有疑问 我在下面添加一个包:

并添加 Startup.cs

using Microsoft.Owin;
using Owin;
[assembly: OwinStartup(typeof(Paksh.Startup))]
namespace Paksh
 {
   public class Startup
    {
      public static void ConfigureSignalR(IAppBuilder app)
       {
                  app.MapSignalR();
       }
     }
 }

但我得到错误:

The following errors occurred while attempting to load the app. - The OwinStartupAttribute.FriendlyName value '' does not match the given value 'ProductionConfiguration' in Assembly 'Paksh, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. - The given type or method 'ProductionConfiguration' was not found. Try specifying the Assembly. To disable OWIN startup discovery, add the appSetting owin:AutomaticAppStartup with a value of "false" in your web.config. To specify the OWIN startup Assembly, Class, or Method, add the appSetting owin:AppStartup with the fully qualified startup class or configuration method name in your web.config.

Answer 1

错误...

The given [...] method 'ProductionConfiguration' was not found.

表示OWIN Startup Class Detection正在根据您提供的类型 (Paksh.Startup) 寻找名为 ProductionConfiguration 的方法，但找不到。有些东西告诉我你的 web.config 中也有类似的东西:

<appSettings>  
  <add key="owin:appStartup" value="ProductionConfiguration" />       
</appSettings>

你有几种选择来解决这个问题:

1. 将 ConfigureSignalR 方法的名称更改为 ProductionConfiguration
2. 在 OwinStartupAttribute 中指定正确的方法名称: [程序集:OwinStartup(typeof(Paksh.Startup), "ConfigureSignalR")]

要了解 OWIN 启动类检测，请阅读更多 here .