c# – 在SignalR lib中使用SignalR 2.0 Owin管道
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我正在考虑将此库升级到SignalR 2.0
https://github.com/AndersMalmgren/SignalR.EventAggregatorProxy 我希望它支持带有IAppBuilder接口的2.0 Owin管道,而不是像SignalR 1.x那样使用RouteCollection. 问题是,如何从IAppBuilder获取routecollection?我需要它来重新定制一个处理我的自定义js脚本的自定义IHttpHandler(就像SignalR注册它们的hub脚本一样) 我的lib的1.x设置看起来像这样 public static class SignalRConfig
{
public static void Register(RouteCollection routes)
{
routes.MapHubs();
routes.MapEventProxy<Contracts.Events.Event>();
}
}
我的2.0目标是这样配置的 public static class SignalRConfig
{
public static void Configuration(IAppBuilder app)
{
app.MapSignalR();
app.MapEventProxy<Contracts.Events.Event>();
}
}
我的代码依赖于RouteCollection看起来像这样 public static class RouteCollectionExtensions
{
public static void MapEventProxy<TEvent>(this RouteCollection routes)
{
Bootstrapper.Init<TEvent>();
routes.Add(new Route(
"eventAggregation/events",new RouteValueDictionary(),new RouteValueDictionary() {{"controller",string.Empty}},new EventScriptRouteHandler<TEvent>()));
}
}
编辑:看起来让Owin提供请求非常复杂,我可以使用SignalR 2.0中的辅助方法来注册路由和该路由的处理程序吗? 更新: using Owin;
using SignalR.EventAggregatorProxy.Boostrap;
namespace SignalR.EventAggregatorProxy.Owin
{
public static class AppBuilderExtensions
{
public static void MapEventProxy<TEvent>(this IAppBuilder app)
{
Bootstrapper.Init<TEvent>();
app.Map("/eventAggregation/events",subApp => subApp.Use<EventScriptMiddleware<TEvent>>());
}
}
}
现在我只需要实现EventScriptMiddleware 更新:最后一块拼图,现在我只需要我的中间件实际吐出javacript,应该很容易 namespace SignalR.EventAggregatorProxy.Owin
{
public class EventScriptMiddleware<TEvent> : OwinMiddleware
{
public EventScriptMiddleware(OwinMiddleware next) : base(next)
{
}
public override Task Invoke(IOwinContext context)
{
return context.Response.WriteAsync("Hello world!!");
}
}
}
解决方法
最终版本看起来像这样,app builder扩展
public static class AppBuilderExtensions
{
public static void MapEventProxy<TEvent>(this IAppBuilder app)
{
Bootstrapper.Init<TEvent>();
app.Map("/eventAggregation/events",subApp => subApp.Use<EventScriptMiddleware<TEvent>>());
}
}
在Middleware中调用方法 public override Task Invoke(IOwinContext context)
{
var response = context.Response;
response.ContentType = "application/javascript";
response.StatusCode = 200;
if (ClientCached(context.Request,scriptBuildDate))
{
response.StatusCode = 304;
response.Headers["Content-Length"] = "0";
response.Body.Close();
response.Body = Stream.Null;
return Task.FromResult<Object>(null);
}
response.Headers["Last-Modified"] = scriptBuildDate.ToUniversalTime().ToString("r");
return response.WriteAsync(js);
}
这里有完整的源代码 https://github.com/AndersMalmgren/SignalR.EventAggregatorProxy/tree/master/SignalR.EventAggregatorProxy/Owin (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
