找不到ASP.NET MVC 3 HttpPost操作方法

Question

我有一个简单的表单,发布到一个HttpPost动作方法,返回其相应的视图.我的问题是我收到了404 Not Found错误.奇怪的是,如果我将action方法和action方法的属性更改为a GET,那么它就可以工作并显示TestMethod视图.

似乎我错过了使用的东西POST,但我在其他控制器中的帖子工作正常(例如帐户登录和注册).请注意,该AllowAnonymous属性是一个自定义属性,可以指定允许匿名访问的控制器或操作,而不是指定(通过Authorizeattr)需要授权的控制器或操作.我想没有什么是不可能的,但我认为这与我的问题没有任何关系.什么错误的想法？

形成:

@using (Html.BeginForm("TestMethod", "Test", FormMethod.Post, new { @id = "testForm" })) {
    <fieldset>
        <legend>Test Form</legend>
        <input type="submit" value="Submit" />
    </fieldset>
}

控制器行动:

[AllowAnonymous]
[HttpPost]
public ActionResult TestMethod() {
    return View();
}

视图:

<h2>TestMethod</h2>
<p>HttpPost method was successful.</p>

从Global.asax.cs注册路由方法:

public static void RegisterRoutes(RouteCollection routes) {
        routes.IgnoreRoute("favicon.ico");
        routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

        // About
        routes.MapRoute(
            "About", // Route name
            "about", // URL with parameters
            new { controller = "Home", action = "About" } // Parameter defaults
        );

        // Faq
        routes.MapRoute(
            "Faq", // Route name
            "faq", // URL with parameters
            new { controller = "Home", action = "Faq" } // Parameter defaults
        );

        // Glossary
        routes.MapRoute(
            "Glossary", // Route name
            "glossary", // URL with parameters
            new { controller = "Home", action = "Glossary" } // Parameter defaults
        );

        // Register
        routes.MapRoute(
            "Register", // Route name
            "register", // URL with parameters
            new { controller = "Account", action = "Register" } // Parameter defaults
        );

        // LogIn
        routes.MapRoute(
            "LogIn", // Route name
            "login/{id}", // URL with parameters
            new { controller = "Account", action = "LogOn", id = UrlParameter.Optional } // Parameter defaults
        );
        routes.MapRoute(
            "LogOn", // Route name
            "logon/{id}", // URL with parameters
            new { controller = "Account", action = "LogOn", id = UrlParameter.Optional } // Parameter defaults
        );

        // Default
        routes.MapRoute(
            "Default", // Route name
            "{controller}/{action}/{id}", // URL with parameters
            new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
        );

}

授权属性代码:

// AllowAnonymousAttribute class
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public sealed class AllowAnonymousAttribute : Attribute { }

// GlobalAuthorize class
public sealed class GlobalAuthorize : AuthorizeAttribute {
    public override void OnAuthorization(AuthorizationContext filterContext) {
        bool skipAuthorization = 
            filterContext.ActionDescriptor.IsDefined(typeof(AllowAnonymousAttribute), true) || 
            filterContext.ActionDescriptor.ControllerDescriptor.IsDefined(typeof(AllowAnonymousAttribute), true);

        if (!skipAuthorization) base.OnAuthorization(filterContext);
    }
}

// RedirectAuthorizeAttribute class
public class RedirectAuthorizeAttribute : AuthorizeAttribute {
    public string RedirectUrl { get; set; }

    protected override void HandleUnauthorizedRequest(AuthorizationContext filterContext) {
        filterContext.Result = new RedirectResult(RedirectUrl);
    }
}

全球过滤器:

public static void RegisterGlobalFilters(GlobalFilterCollection filters) {
    filters.Add(new RequireHttpsAttribute());
    filters.Add(new GlobalAuthorize());
    filters.Add(new HandleErrorAttribute());
}

路线重写规则:

<rewrite>
  <rules>
    <!-- Block all requests made to a website that do not have the host header set. -->
    <rule name="Fail bad requests" stopProcessing="true">
      <match url=".*" />
      <conditions>
        <add input="{HTTP_HOST}" pattern="localhost" negate="true" />
      </conditions>
      <action type="AbortRequest" />
    </rule>
    <!-- Remove trailing slash from all incoming requests. -->
    <rule name="Remove trailing slash" stopProcessing="false">
      <match url="(.*)/$" />
      <conditions>
        <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
        <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
      </conditions>
      <action type="Redirect" redirectType="Permanent" url="{R:1}" />
    </rule>
    <!-- Convert all requests to all lowercase. -->
    <rule name="Convert to lowercase" stopProcessing="false">
      <match url=".*[A-Z].*" ignoreCase="false" />
      <action type="Redirect" url="{ToLower:{R:0}}" redirectType="Permanent" />
    </rule>
    <!-- Any URL with (HTTPS == OFF) and (HTTP_HOST with colon) -> use for development testing. -->
    <rule name="Development redirect to HTTPS" enabled="true" stopProcessing="true">
      <match url=".*" ignoreCase="true" />
      <conditions logicalGrouping="MatchAll" trackAllCaptures="true">
        <add input="{HTTPS}" pattern="^OFF$" />
        <add input="{HTTP_HOST}" pattern="([^/:]*?):[^/]*?" />
      </conditions>
      <action type="Redirect" url="https://{C:1}:44300{URL}" />
    </rule>
    <!-- Redirect any HTTP request to HTTPS. -->
    <rule name="Redirect to HTTPS" stopProcessing="true">
      <match url="(.*)" />
      <conditions>
        <add input="{HTTPS}" pattern="^OFF$" ignoreCase="true" />
      </conditions>
      <action type="Redirect" url="https://{HTTP_HOST}/{R:1}" redirectType="Permanent" />
    </rule>
  </rules>
</rewrite>

Answer 1

我想我终于找到了罪魁祸首.首先,我会承认,现在知道问题是什么,这个问题的标题不是很准确.问题主要是Web.config中的规则重写.在回答别人对这个问题的评论之前,我完全忘记了规则重写,这就是为什么我没有进一步检查它们的原因.

无论如何,问题是将URL重写为全部小写的规则.我知道我的帐户注册和登录表单工作正常,所以我检查了它们并发现它们的Html.BeginForm语句是无参数的,这显然导致生成小写url.我为我的测试方法尝试了无参数的POST请求,并且它有效.然后,我尝试在Html.BeginForm语句中使用参数for action和controller ,但这次我将它们作为小写字符串输入:Html.BeginForm("testmethod", "test"...).果然,它也工作得很好,页面源显示表单操作为小写.

为了解决我的问题,我只需要设置一个不匹配POST请求的条件:<add input="{REQUEST_METHOD}" matchType="Pattern" pattern="POST" negate="true" />.请注意,问题不是具体的小写规则,而是POST重定向请求.我发现一个博客讨论了POST重定向被转换为GETs并导致错误的问题,这是我所经历的极端.它已经有几年了,但显然它仍然是相关的信息.

无论如何,我现在已经恢复运行了.感谢所有投入两分钱的人.

PS当我关闭浏览器标签并结束我的搜索时,我想我会链接到这个SO 问题,因为它肯定与我的问题有关.