OWIN启动类多次调用

Question

我遇到了设计危机。

在我的应用程序生命周期中，我有一些必须保持静态的东西。

Startup.cs类中的public void Configuration(IAppBuilder app)方法被称为不止一次，它们似乎是“静态”变量的多个实例。

我的启动课上有这个

[assembly: OwinStartup(typeof(Startup))]

我也在使用这些停车场

  <package id="Antlr" version="3.4.1.9004" targetFramework="net45" />
  <package id="EntityFramework" version="6.1.3" targetFramework="net45" />
  <package id="Microsoft.AspNet.Cors" version="5.2.3" targetFramework="net45" />
  <package id="Microsoft.AspNet.Identity.Core" version="2.2.1" targetFramework="net45" />
  <package id="Microsoft.AspNet.Identity.EntityFramework" version="2.2.1" targetFramework="net45" />
  <package id="Microsoft.AspNet.Identity.Owin" version="2.2.1" targetFramework="net45" />
  <package id="Microsoft.AspNet.Mvc" version="5.2.3" targetFramework="net45" />
  <package id="Microsoft.AspNet.Razor" version="3.2.3" targetFramework="net45" />
  <package id="Microsoft.AspNet.SignalR.Core" version="2.2.2" targetFramework="net45" />
  <package id="Microsoft.AspNet.SignalR.SystemWeb" version="2.2.2" targetFramework="net45" />
  <package id="Microsoft.AspNet.Web.Optimization" version="1.1.3" targetFramework="net45" />
  <package id="Microsoft.AspNet.WebApi" version="5.2.3" targetFramework="net45" />
  <package id="Microsoft.AspNet.WebApi.Client" version="5.2.3" targetFramework="net45" />
  <package id="Microsoft.AspNet.WebApi.Core" version="5.2.3" targetFramework="net45" />
  <package id="Microsoft.AspNet.WebApi.Owin" version="5.2.3" targetFramework="net45" />
  <package id="Microsoft.AspNet.WebApi.WebHost" version="5.2.3" targetFramework="net45" />
  <package id="Microsoft.AspNet.WebPages" version="3.2.3" targetFramework="net45" />
  <package id="Microsoft.Owin" version="3.1.0" targetFramework="net45" />
  <package id="Microsoft.Owin.Cors" version="3.1.0" targetFramework="net45" />
  <package id="Microsoft.Owin.Host.SystemWeb" version="3.1.0" targetFramework="net45" />
  <package id="Microsoft.Owin.Security" version="3.1.0" targetFramework="net45" />
  <package id="Microsoft.Owin.Security.Cookies" version="3.1.0" targetFramework="net45" />
  <package id="Microsoft.Owin.Security.OAuth" version="3.1.0" targetFramework="net45" />
  <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />
  <package id="Newtonsoft.Json" version="10.0.3" targetFramework="net45" />
  <package id="Owin" version="1.0" targetFramework="net45" />
  <package id="WebGrease" version="1.5.2" targetFramework="net45" />

我怎样才能确保startup.cs中的配置只执行一次？

Answer 1

在启动运行两次时发生这种情况。 问题是这个

initial

我从配置中删除了这一行并修复了它