Owin

Owin
应用程序代理
using AppFunc=Func<IDictionary<string,object>,Task>;

IDictionary<string,object>环境变量，贯穿整个处理流程

Microsoft.Owin.Host.SystemWeb
可以接管IIS请求(App>Middleware>Server>Host)Server层
MIcrosoft.Owin.Host.HttpListener(Server层，可以实现控制台寄宿)
Microsoft.Owin.StaticFiles（实现静态站点托管）

Startup
app.User(); //添加处理管道，顺序处理
<add key="owin:HandleAllRequests" value="true"/> //处理所有请求

继承OwinMiddleware实现处理管道
AuthenticationMiddleware : OwinMiddleware
public void Configuration(IAppBuilder app)
{
app.Use<AuthenticationMiddleware>();

app.Use<AuthorizationMiddleware>();

app.Use(async (context, next) =>
{
context.Response.ContentType = "text/plain";
await context.Response.WriteAsync("Hello World!");
});
}

url:http://www.cnblogs.com/jesse2013/p/owin-webserver.html