asp.net - 在服务器中创建目录

Question

我使用以下代码将文件保存到服务器，但是当我想创建文件夹时说：“不支持 URI 格式”

//Save File
string folderPath = MapPath(@"Attachment\");
FileUpload1.SaveAs(folderPath + name);

//Directory
Directory.CreateDirectory(folderPath+@"\111");

Answer 1

检查之前存在

string folderPath =Server.MapPath("Attachment");
if(!Directory.Exists(folderPath))
   Directory.CreateDirectory(folderPath);

边注：

当您更好地使用连接路径时Path.Combine

FileUpload1.SaveAs(Path.Combine(folderPath , name));

或尝试

Directory.CreateDirectory(new Uri(folderPath+@"\111").LocalPath);

因为您收到“不支持 URI 格式”错误消息