无法远程返回自定义HTTP错误详细信息
无法远程返回自定义HTTP错误详细信息
提问于 2011-12-02 03:04:07
这是一个奇怪的问题。我正在运行MVC3，并且有一个自定义的操作结果，它包装异常并返回一条消息以及标准的HTTP错误。
public class ExceptionResult : ActionResult
{
private readonly Exception _exception;
public ExceptionResult(Exception exception)
{
_exception = exception;
}
public override void ExecuteResult(ControllerContext context)
{
var response = context.HttpContext.Response;
response.ClearHeaders();
response.Cache.SetNoStore();
response.ContentType = ContentType.Json;
var baseEx = _exception as BaseException ?? new ServerException(_exception);
var result = baseEx.GetResult();
var json = result.ToJSON();
response.Write(json);
response.StatusCode = (int)result.Status.Code;
}
}当我在本地运行它时，我得到了我所期望的结果：
HTTP/1.1 400 Bad Request
Cache-Control: no-store
Content-Type: application/json; charset=utf-8
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
Date: Thu, 01 Dec 2011 19:00:03 GMT
Content-Length: 81
{"error":"invalid_request","error_description":"Parameter grant_type is missing"}但是，当我尝试从另一台计算机连接时，得到的却是标准的IIS错误消息：
HTTP/1.1 400 Bad Request
Cache-Control: no-store
Content-Type: text/html
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
Date: Thu, 01 Dec 2011 19:02:33 GMT
Content-Length: 11
Bad Request更新
在IIS管道中的某处一定有某个http模块，该模块正在吞噬响应并重写内容。我编写了一个模块来记录请求和响应，它返回的结果完全符合我的预期，但实际上浏览器返回的内容是错误的。
2011-12-02 15:39:00,518 - ======== Request ========
2011-12-02 15:39:00,518 - GET /oauth/2/token HTTP/1.1
2011-12-02 15:39:00,519 - Cache-Control: max-age=0
2011-12-02 15:39:00,519 - Connection: keep-alive
2011-12-02 15:39:00,519 - Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
2011-12-02 15:39:00,519 - Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
2011-12-02 15:39:00,519 - Accept-Encoding: gzip,deflate,sdch
2011-12-02 15:39:00,519 - Accept-Language: en-US,en;q=0.8
2011-12-02 15:39:00,519 - Host: micah-pc:8095
2011-12-02 15:39:00,519 - User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2
2011-12-02 15:39:00,519 - =========================
2011-12-02 15:39:00,519 - OAuth exception occurred.
BoomTown.OAuth.OAuthException: Parameter grant_type is missing
at BoomTown.OAuth.Request.TokenRequest.GetRequestValidator() in C:\code\BoomTown\Api\BoomTown.OAuth\Request\TokenRequest.cs:line 19
at BoomTown.OAuth.Request.OAuthRequestBase.Validate() in C:\code\BoomTown\Api\BoomTown.OAuth\Request\OAuthRequestBase.cs:line 33
at BoomTown.OAuth.Request.OAuthRequestBase..ctor(HttpRequestBase request, IOAuthServiceLocator serviceLocator) in C:\code\BoomTown\Api\BoomTown.OAuth\Request\OAuthRequestBase.cs:line 28
at BoomTown.OAuth.Request.TokenRequest..ctor(HttpRequestBase request, IOAuthServiceLocator serviceLocator) in C:\code\BoomTown\Api\BoomTown.OAuth\Request\TokenRequest.cs:line 13
at BoomTown.Api.Web.Controllers.OAuth.V2.OAuthController.Token() in C:\code\BoomTown\Api\BoomTown.Api.Web\Controllers\OAuth\V2\OAuthController.cs:line 26
2011-12-02 15:39:00,520 - ======= Response =======
2011-12-02 15:39:00,520 - HTTP/1.1 400 Bad Request
2011-12-02 15:39:00,520 - Cache-Control: no-store
2011-12-02 15:39:00,520 - X-AspNet-Version: 4.0.30319
2011-12-02 15:39:00,520 - Content-Type: application/json; charset=utf-8
2011-12-02 15:39:00,520 - {"error":"invalid_request","error_description":"Parameter grant_type is missing"}解决方案
多亏了一点侦察，我才能把它弄清楚。我设置了IIS跟踪，这证实了我的怀疑，即它与customerrormodule有关，该模块正在拦截我的请求并覆盖我的错误消息。我一直在摆弄
<system.web>
<customErrors />
<system.web>设置但无济于事。我是在正确的轨道上，但是因为我运行的是IIS7，所以我需要像这样更改正确的web.config部分：
<system.webServer>
<httpErrors errorMode="Detailed" />
</system.webServer>现在，我所有的自定义JSON消息都完美地通过了。非常感谢Jason Finneyfrock在这一点上的标签团队。
回答 2
Stack Overflow用户
回答已采纳
发布于 2011-12-03 05:35:44
在您的web.config中，您是否已将httpErrors定义为仅为DetailedLocalOnly？我不确定在这种情况下内容是否会被删除。
http://www.iis.net/ConfigReference/system.webServer/httpErrors
Stack Overflow用户
发布于 2011-12-02 03:53:57
我偶然发现了这个，不确定它是否会有帮助：
context.HttpContext.Response.TrySkipIisCustomErrors = true;页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/8346836
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