Server.MapPath(“.")、Server.MapPath(“~")、Server.MapPath(@“")、Server.MapPath(“/").

本文介绍了Server.MapPath(“.")、Server.MapPath(“~")、Server.MapPath(@“")、Server.MapPath(“/").有什么不同?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

谁能解释一下Server.MapPath(".")、Server.MapPath("~")、Server.MapPath(@"") 和 Server.MapPath("/")?

解决方案

Server.MapPath 指定将映射到物理目录的相对或虚拟路径.

• Server.MapPath(".")1 返回正在执行的文件(例如 aspx)的当前物理目录
• Server.MapPath("..") 返回父目录
• Server.MapPath("~") 返回应用程序根目录的物理路径
• Server.MapPath("/") 返回域名根的物理路径(不一定与应用的根相同)

示例:

假设您将一个网站应用程序 (www.example/) 指向

C:Inetpubwwwroot

并在

中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)

D:WebAppsshop

例如，如果您在以下请求中调用 Server.MapPath():

www.example/shop/products/GetProduct.aspx?id=2342

然后:

• Server.MapPath(".")1 返回 D:WebAppsshopproducts
• Server.MapPath("..") 返回 D:WebAppsshop
• Server.MapPath("~") 返回 D:WebAppsshop
• Server.MapPath("/") 返回 C:Inetpubwwwroot
• Server.MapPath("/shop") 返回 D:WebAppsshop

如果 Path 以正斜杠 (/) 或反斜杠 () 开头，则 MapPath() 返回路径为如果 Path 是完整的虚拟路径.

如果 Path 不以斜杠开头，MapPath() 将返回一个相对于正在处理的请求的目录的路径.

注意:在 C# 中，@ 是逐字文本字符串运算符，这意味着该字符串应该按原样"使用，而不是针对转义序列进行处理.>

脚注

Server.MapPath(null) 和 Server.MapPath("") 将 也会产生这种效果.

Can anyone explain the difference between Server.MapPath("."), Server.MapPath("~"), Server.MapPath(@"") and Server.MapPath("/")?

解决方案

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 executed
• Server.MapPath("..") returns the parent directory
• Server.MapPath("~") returns the physical path to the root of the application
• Server.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 (www.example/) to

C:Inetpubwwwroot

and installed your shop application (sub web as virtual directory in IIS, marked as application) in

D:WebAppsshop

For example, if you call Server.MapPath() in following request:

www.example/shop/products/GetProduct.aspx?id=2342

then:

• Server.MapPath(".")1 returns D:WebAppsshopproducts
• Server.MapPath("..") returns D:WebAppsshop
• Server.MapPath("~") returns D:WebAppsshop
• Server.MapPath("/") returns C:Inetpubwwwroot
• Server.MapPath("/shop") returns D:WebAppsshop

If Path starts with either a forward slash (/) or backward slash (), the MapPath() 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) and Server.MapPath("") will produce this effect too.