C# SaveAs方法配置为需要root路径，路径'~\\images\\594083964.jpg'没有root
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The SaveAs method is configured to require a rooted path, and the path '~\\images\\594083964.jpg' is not rooted
提问by
The SaveAs method is configured to require a rooted path, and the path '~\images\594083964.jpg' is not rooted. 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.
SaveAs方法配置为需要root路径，路径'~\images\594083964.jpg'没有root。说明：在执行当前 Web 请求期间发生未处理的异常。请查看堆栈跟踪以获取有关错误及其起源于代码的更多信息。
Exception Details:
异常详情：
System.Web.HttpException: The SaveAs method is configured to require a rooted path, and the path '~\images\594083964.jpg' is not rooted.
System.Web.HttpException: SaveAs 方法被配置为需要有根路径，而路径 '~\images\594083964.jpg' 没有根。
Source Error:
源错误：
Line 27: {
Line 28:
Line 29: fu1.SaveAs(@"~\images\" + i + fu1.FileName.Substring(fu1.FileName.Length - 4, 4));
Line 30: path = "~\images\"+i + fu1.FileName.Substring(fu1.FileName.Length-4,4);
Line 31: }
Source File: e:\PEOPLE\Ravi\new data\WebSite1\signup.aspx.cs Line: 29
源文件：e:\PEOPLE\Ravi\new data\WebSite1\signup.aspx.cs 行：29
回答by MPritchard
The path you are saving to is a relative URL. You need to save to a local file path (or full network path).
您保存到的路径是一个相对 URL。您需要保存到本地文件路径（或完整网络路径）。
Try:
尝试：
string relativePath = @"~\images\"+ i + Path.GetExtension(fu1.FileName);
fu1.SaveAs(Server.MapPath(relativePath));
(Path.GetExtension(string) will handle file extensions that aren't 3 characters too)
（Path.GetExtension(string) 也将处理不是 3 个字符的文件扩展名）
