Question

我有一个ASP.NET MVC 3网站，它在公司内部网上运行，我想添加一个可以将文件上传到服务器的页面。

我在带有IIS 8的Windows Server 2012上运行该站点。

IIS配置：

应用程序池属性：

.Net Framework v4.0
管理管道模式：集成
身份：LocalSystem

在站点节点下，身份验证设置为：

Windows身份验证：已启用（用户必须使用其公司Windows帐户登录）
包括匿名身份验证在内的所有其他身份验证都设置为已禁用。

Windows Permissions：

在Content目录中，我已授予系统，管理员和我用户帐户的所有访问权限。

MVC代码：

处理文件上载的MVC Controller方法包含以下代码：

[HttpPost]
public ActionResult Upload(HttpPostedFileBase file)
{
    if (file != null && file.ContentLength > 0)
    {
        var fileName = Path.GetFileName(file.FileName);
        DateTime timestamp = DateTime.Today;
        var path = Path.Combine(Server.MapPath("~/Content/uploads"), fileName);
        if( !Directory.Exists(path))
            Directory.CreateDirectory(path);
        file.SaveAs(path);
    }

    return RedirectToAction("Index");
}

当我尝试使用上述控制器上传文件时，出现以下错误：

Server Error in '/' Application.

Access to the path 'C:\Sites\ClosedBeta\Content\uploads\test.csv' is denied. 
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.UnauthorizedAccessException: Access to the path 'C:\Sites\ClosedBeta\Content\uploads\test.csv' is denied. 

ASP.NET is not authorized to access the requested resource. Consider granting access rights to the resource to the ASP.NET request identity. ASP.NET has a base process identity (typically {MACHINE}\ASPNET on IIS 5 or Network Service on IIS 6 and IIS 7, and the configured application pool identity on IIS 7.5) that is used if the application is not impersonating. If the application is impersonating via <identity impersonate="true"/>, the identity will be the anonymous user (typically IUSR_MACHINENAME) or the authenticated request user. 

To grant ASP.NET access to a file, right-click the file in File Explorer, choose "Properties" and select the Security tab. Click "Add" to add the appropriate user or group. Highlight the ASP.NET account, and check the boxes for the desired access.

Source Error: 
Line 34:                 if( !Directory.Exists(path))
Line 35:                     Directory.CreateDirectory(path);
Line 36:                 file.SaveAs(path);
Line 37:             }
Line 38: 

Source File:  C:\Users\****\Documents\Visual Studio 2010\Projects\Solution\Project\Controllers\UploadTestController.cs    Line:  36 

Stack Trace: 

[UnauthorizedAccessException: Access to the path 'C:\Sites\ClosedBeta\Content\uploads\test.csv' is denied.]
  System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) +10760710
  System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost) +1352
  System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy) +60
  System.IO.FileStream..ctor(String path, FileMode mode) +55
  System.Web.HttpPostedFile.SaveAs(String filename) +94
  System.Web.HttpPostedFileWrapper.SaveAs(String filename) +9
  Project.Controllers.UploadTestController.Upload(HttpPostedFileBase file) in C:\Users\****\Documents\Visual Studio 2010\Projects\Solution\Project\Controllers\UploadTestController.cs:36
  lambda_method(Closure , ControllerBase , Object[] ) +180
  System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +14
  System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +214
  System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +27
  System.Web.Mvc.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12() +55
  System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +253
  System.Web.Mvc.<>c__DisplayClass17.<InvokeActionMethodWithFilters>b__14() +21
  System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +191
  System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +324
  System.Web.Mvc.Controller.ExecuteCore() +106
  System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +91
  System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +10
  System.Web.Mvc.<>c__DisplayClassb.<BeginProcessRequest>b__5() +34
  System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +19
  System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +10
  System.Web.Mvc.Async.WrappedAsyncResult`1.End() +62
  System.Web.Mvc.<>c__DisplayClasse.<EndProcessRequest>b__d() +48
  System.Web.Mvc.SecurityUtil.<GetCallInAppTrustThunk>b__0(Action f) +7
  System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) +22
  System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +60
  System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9
  System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +9629708
  System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

任何adivce都是apreciated

Answer 1

我认为问题只是我需要稍等一下才能使权限生效。

第二天回到相同的代码后，它运作得很好。

Answer 2

简单地说，iis检查是IISUSER，IUSR_是否有读写权限

通常plesk面板和cpanel会添加读取列表和写入的默认权限，但在某些情况下出现问题，您需要设置正确的权限。

所以你有两种方法来实现你的目标：

如果您有权访问自己做的

或

要求您的托管公司设置此特定文件夹的写入和读取权限。

授予ASP.NET MVC 3网站写入〜/ Content / uploads文件夹的权限

2 个答案: