System.UnauthorizedAccessException的 [英] System.UnauthorizedAccessException

问题描述

Dim filePath As String = "~/Images/FleaMarket/uploadedImages/" & User.Identity.Name.ToString & "/" & itemID & Path.GetExtension(fuImage.FileName)
        MsgBox(filePath)
        If fuImage.HasFile Then
            If Directory.Exists(Server.MapPath("~/Images/FleaMarket/uploadedImages/" & User.Identity.Name.ToString & "/")) = False Then
                Directory.CreateDirectory(Server.MapPath("~/Images/FleaMarket/uploadedImages/" & User.Identity.Name.ToString & "/"))
            End If
            'lblMessage.Text = ""
            If checkFileType(fuImage.FileName) Then

                fuImage.SaveAs(Server.MapPath("../Images/FleaMarket/uploadedImages/" & User.Identity.Name.ToString))

我得到一个错误的System.UnauthorizedAccessException：对路径D：\\ TriceDealsII更新\\ 13-10-11 \\ Tricedeals II（4）\\图片\\ Fleamarket跳蚤市场\\ uploadedImages \\ mitali2054'被拒绝

为什么？

推荐答案

ASP.NET应用程序，这在IIS中运行使用分配给指定的应用程序池的用户。对于每一个应用程序池将有一个Windows用户是Windows组IIS_IUSRS的一部分。由于这种用户/组没有写/更改访问到你的web应用的目录（或任何其他目录），您必须手动授予这些权限。

ASP.NET Applications, which run in IIS use the User assigned to the specified Application Pool. For each Application Pool there will be a Windows User which is part of the Windows Group "IIS_IUSRS". As this User / Group do not have Write/Change Access to the directory of your Webapplication (or any other directory) you must manually grant these permissions.

为了更好地实现这样的：在资源管理器中指定的路径，在那里你希望写你的文件浏览/数据打开目录的安全页面添加您的应用程序池的用户或组IIS_IUSRS到列表中，选择写入（或改变）权限。

To achive this: Navigate in the explorer to the specified path, where you wish to write your files / data open the Security Page of the directory to add the User of your AppPool or the Group "IIS_IUSRS" to the List and select the write (or change) permission.

请注意：写权限始终是一个安全隐患。因此，你应该尽可能多的限制就越好。

Note: Write permission is always a security risk. Therefore you should restrict it as much as possible.

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