Server.MapPath(“.”)、Server.MapPath(“~”)、Server.MapPath(@“\”)、Server.MapPath(“/”)。 有什么不同？
谁能解释一下 Server.MapPath(".")、Server.MapPath("~")、Server.MapPath(@"\") 之间的区别 和Server.MapPath("/")？
Can anyone explain the difference between Server.MapPath("."), Server.MapPath("~"), Server.MapPath(@"\") and Server.MapPath("/")?
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Server.MapPath 指定映射到物理目录的相对路径或虚拟路径。
Server.MapPath(".")1 返回正在执行的文件（例如 aspx）的当前物理目录Server.MapPath("..")< /code> 返回父目录Server.MapPath("~")返回应用程序根目录的物理路径Server.MapPath("/")返回应用程序根目录的物理 路径域名根的路径（不一定与应用程序的根相同）示例：
假设您指向一个网站应用程序 (
http://www.example .com/）并安装您的商店应用程序（子网站作为 IIS 中的虚拟目录，标记为应用程序）
例如，如果您在以下请求中调用
Server.MapPath()：然后：
Server.MapPath(".")1 返回D:\WebApps\shop\productsServer.MapPath(". .")返回D:\WebApps\shopServer.MapPath("~")返回D:\WebApps\shopServer.MapPath("/")返回C:\Inetpub\wwwrootServer.MapPath("/shop")返回D :\WebApps\shop如果 Path 以正斜杠 (
/) 或反斜杠 (\) 开头，则MapPath() 返回一个路径，就好像 Path 是完整的虚拟路径一样。如果 Path 不以斜杠开头，则
MapPath()返回相对于正在处理的请求目录的路径。注意：在 C# 中，
@是逐字字符串运算符，这意味着该字符串应“按原样”使用，而不是针对转义序列进行处理。脚注< /em>
Server.MapPath(null)和Server.MapPath("")将Server.MapPath specifies the relative or virtual path to map to a physical directory.
Server.MapPath(".")1 returns the current physical directory of the file (e.g. aspx) being executedServer.MapPath("..")returns the parent directoryServer.MapPath("~")returns the physical path to the root of the applicationServer.MapPath("/")returns the physical path to the root of the domain name (is not necessarily the same as the root of the application)An example:
Let's say you pointed a web site application (
http://www.example.com/) toand installed your shop application (sub web as virtual directory in IIS, marked as application) in
For example, if you call
Server.MapPath()in following request:then:
Server.MapPath(".")1 returnsD:\WebApps\shop\productsServer.MapPath("..")returnsD:\WebApps\shopServer.MapPath("~")returnsD:\WebApps\shopServer.MapPath("/")returnsC:\Inetpub\wwwrootServer.MapPath("/shop")returnsD:\WebApps\shopIf Path starts with either a forward slash (
/) or backward slash (\), theMapPath()returns a path as if Path was a full, virtual path.If Path doesn't start with a slash, the
MapPath()returns a path relative to the directory of the request being processed.Note: in C#,
@is the verbatim literal string operator meaning that the string should be used "as is" and not be processed for escape sequences.Footnotes
Server.MapPath(null)andServer.MapPath("")will produce this effect too.只是稍微扩展一下@splattne的答案：
MapPath(string virtualPath)调用以下内容：MapPath(VirtualPath virtualPath)依次调用MapPath(VirtualPath virtualPath, VirtualPath) baseVirtualDir, bool allowedCrossAppMapping)其中包含以下内容：因此，如果您调用
MapPath(null)或MapPath("")，则实际上是在调用地图路径（“。”）Just to expand on @splattne's answer a little:
MapPath(string virtualPath)calls the following:MapPath(VirtualPath virtualPath)in turn callsMapPath(VirtualPath virtualPath, VirtualPath baseVirtualDir, bool allowCrossAppMapping)which contains the following:So if you call
MapPath(null)orMapPath(""), you are effectively callingMapPath(".")1)
Server.MapPath(".")-- 返回正在执行的文件的“当前物理目录”（例如aspx）。前任。 假设
D:\WebApplications\Collage\Departments2)
Server.MapPath("..")-- 返回“父目录”
D:\WebApplications\Collage的物理路径”
3)
Server.MapPath("~")-- 返回“应用程序根目录D:\WebApplications\Collage4)
Server.MapPath("/")-- 返回域名Ex 根目录的物理路径。
C:\Inetpub\wwwroot1)
Server.MapPath(".")-- Returns the "Current Physical Directory" of the file (e.g.aspx) being executed.Ex. Suppose
D:\WebApplications\Collage\Departments2)
Server.MapPath("..")-- Returns the "Parent Directory"Ex.
D:\WebApplications\Collage3)
Server.MapPath("~")-- Returns the "Physical Path to the Root of the Application"Ex.
D:\WebApplications\Collage4)
Server.MapPath("/")-- Returns the physical path to the root of the Domain NameEx.
C:\Inetpub\wwwroot工作示例，希望这有助于展示一种使用 MapPath 而不仅仅是“/”的方法。 我们将“/”和“~”组合起来。
长 URL 转换为变量
此位置的物理路径
物理路径中的文件。
Working Example, hope this helps show a way to use MapPath with more than just a "/". We are combining "/" and "~".
long URL into a variable
physical path to this location
of the files from the physical path.