获取ScriptHandlerFactory处理程序 [英] Getting ScriptHandlerFactory handler

问题描述

有没有办法来调用System.Web.Script.Services.ScriptHandlerFactory类GetHandler方法，该方法返回的IHttpHandler类型的对象。我知道ScriptHandlerFactory是一个内部类，但therey从那里我能得到任何其他方式？我说的原因是因为我想我的路由路径的.asmx和路由需要这种类型的代码：

Is there any way to call System.Web.Script.Services.ScriptHandlerFactory class GetHandler method which return IHttpHandler type object. I know ScriptHandlerFactory is an internal class but is therey any other way from where I can get it? The reason I am saying is because I want to route my .asmx paths and routing needs this type of code:

    public IHttpHandler GetHttpHandler(RequestContext requestContext)
{
   return new WebServiceHandlerFactory().GetHandler(HttpContext.Current,
        "*",
        _VirtualPath,
        HttpContext.Current.Server.MapPath(_VirtualPath));
   }
}

以上WebServiceHandlerFactory使用，但我想用ScriptHandlerFactory只因为我想要使用jQuery的ajax来电了。我将呼吁通过jQuery AJAX调用ASMX方法。你能帮助我这样做？

Above "WebServiceHandlerFactory" is used but I want to use ScriptHandlerFactory only since I want to make use of jquery ajax calls too. I will be calling the asmx methods via jquery ajax calls. Can you help me in doing so?

推荐答案

从Spring.Net借来的。我用它来访问 SimpleHttpHandler 因为我使用的IoC创建的HttpHandler 秒。

Borrowed from Spring.Net. I use it to access the SimpleHttpHandler because I use IoC to create HttpHandlers.

编辑：的这是我用来找出如何做到这一点的代码。显然，它需要的完全信任，然后我不喜欢这个技巧，但ASP.NET并没有很容易让我创造我自己的处理工厂，需要依靠内置的时候做的IoC 。-in功能

This is the code that I used to figure out how to do it. Obviously, it requires full trust, and I didn't like this hack, but ASP.NET didn't make it easy for me to do IoC when creating my own handler factory that needed to rely on built-in functionality.

编辑2：固定的完全限定的类型名称 System.Web.Services.Protocols。 WebServiceHandlerFactory 。从搜索的IHttpHandler 这是的System.Web 到的WebService 这是 System.Web.Services 。让我知道，如果你有任何问题，

Edit 2: Fixed the fully qualified type name to System.Web.Services.Protocols.WebServiceHandlerFactory. Fixed the assembly search from searching for IHttpHandler which is in System.Web to WebService which is in System.Web.Services. Let me know if you have any issues.

修改3：对不起这一点。我离开了他们使用的 SecurityCritical 类，如果你愿意，你可以做的另一种方式，但我只是从他们那里直接拷贝时，我做到了。它是用来提升并断言权限，这就是为什么你需要的完全信任的

Edit 3: Sorry about this. I left out the SecurityCritical class they use, which you can do another way if you want, but I just copied straight from them when I did it. It is used to elevate and assert permissions, which is why you need full trust.

    static YourCodeHere()
    {
        PrivilegedCommand cmd = new PrivilegedCommand();
        SecurityCritical.ExecutePrivileged(new PermissionSet(PermissionState.Unrestricted), new SecurityCritical.PrivilegedCallback(cmd.Execute));
        handlerFactory = cmd.Result;
    }

    private class PrivilegedCommand
    {
        public IHttpHandlerFactory Result = null;

        public void Execute()
        {
            Type handlerFactoryType = typeof(System.Web.Services.WebService).Assembly.GetType("System.Web.Services.Protocols.WebServiceHandlerFactory");
            Result = (IHttpHandlerFactory)Activator.CreateInstance(handlerFactoryType, true);
        }
    }

/// <summary>
/// Utility class to be used from within this assembly for executing security critical code 
/// NEVER EVER MAKE THIS PUBLIC!
/// </summary>
/// <author>Erich Eichinger</author>
internal class SecurityCritical
{
    internal delegate void PrivilegedCallback();

    [SecurityCritical, SecurityTreatAsSafe]
    [MethodImpl(MethodImplOptions.NoInlining)]
    internal static void ExecutePrivileged(IStackWalk permission, PrivilegedCallback callback)
    {
        permission.Assert();
        try
        {
            callback();
        }
        finally
        {
            CodeAccessPermission.RevertAssert();
        }
    }
}

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