如何在asp.net mvc中仅更改一条路由的会话？

Question

如何在asp.net mvc中使用自定义过滤器处理Application_BeginRequest？

我只想恢复一条路由（~/my-url）的会话。

如果我可以创建一个自定义过滤器并处理它，那就太酷了。

protected void Application_BeginRequest(object sender, EventArgs e)
    {
        var context = HttpContext.Current;

        if (string.Equals("~/my-url",
            context.Request.AppRelativeCurrentExecutionFilePath, 
            StringComparison.OrdinalIgnoreCase))
        {
            string sessionId = context.Request.Form["sessionId"];

            if (sessionId != null)
            {
                HttpCookie cookie = context.Request.Cookies.Get("ASP.NET_SessionId");
                if (cookie == null)
                {
                    cookie = new HttpCookie("ASP.NET_SessionId");
                }
                cookie.Value = sessionId;
                context.Request.Cookies.Set(cookie);
            }
        }

Answer 1

我使用 IRouteHandler 做到了。

public class SessionHandler : IRouteHandler
{
    public System.Web.IHttpHandler GetHttpHandler(RequestContext requestContext)
    {
        string sessionId = requestContext.HttpContext.Request.Form["sessionId"];

        if (sessionId != null)
        {
            HttpCookie cookie = requestContext.HttpContext.Request.Cookies.Get("ASP.NET_SessionId");
            if (cookie == null)
            {
                cookie = new HttpCookie("ASP.NET_SessionId");
            }
            cookie.Value = sessionId;
            requestContext.HttpContext.Request.Cookies.Set(cookie);
        }


        return new MvcHandler(requestContext);
    }
}

这是在 global.asax 中（abc/qwr 是路线）：

RouteTable.Routes.Add(new Route(
                "abc/qwr",
                new RouteValueDictionary(new {controller = "MyController", action = "MyAction"}),
                new RouteValueDictionary(),
                new RouteValueDictionary(new { Namespaces = new[] { typeof(MyControllerController).Namespace } }),
                new SessionHandler()
        ));

有什么意见吗？