/// <summary>
/// 删除文件或目录
/// </summary>
/// <param name="filePath">文件或目录，可以为虚拟路径或绝对路径</param>
/// <param name="isDir">是否目录</param>
public static void DeletePath(string filePath, bool isDir)
{
if (filePath == null)
{
return;
}
if (string.IsNullOrEmpty(filePath.Trim()))
{
return;
}
string file = StringPlus.MapPath(filePath);
if (isDir)
{
if (Directory.Exists(file))
{
Directory.Delete(file, true);
return;
}
}
else
{
if (File.Exists(file))
{
File.Delete(file);
}
}
}
/// <summary>
/// 获取上传文件随机文件名，返回绝对路径地址
/// </summary>
/// <param name="saveVirtualDir"></param>
/// <param name="extName">扩展名【请包含 . 】</param>
/// <param name="virtualPathName">虚路径名(包括文件名称)【/upload/..../filename.ext】</param>
/// <param name="fileName">文件名带扩展名</param>
/// <returns></returns>
public static string GetUploadRandFileName(string saveVirtualDir, string extName, out string virtualPathName, out string fileName)
{
fileName = FileHelper.GetRandFileName() + extName;
virtualPathName = saveVirtualDir + fileName;
string dir = StringPlus.MapPath(virtualPathName);
FileHelper.CreateDirectory(dir);
return(dir);
}
/// <summary>
/// 获取全路径中的文件名，如存在用“_”+数字改名,返回绝对路径, 路径中的目录不存在自动创建目录
/// </summary>
/// <param name="fileFullName">文件全路径</param>
/// <returns></returns>
public static string ChangeFileName(string fileFullName)
{
string tmpName = StringPlus.MapPath(fileFullName);
string filename = Path.GetFileNameWithoutExtension(tmpName);
string ext = Path.GetExtension(tmpName);
string path = tmpName.Substring(0, tmpName.LastIndexOf("\\"));
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
int i = Directory.GetFiles(path, filename + "*", System.IO.SearchOption.TopDirectoryOnly).Length;
while (File.Exists(tmpName))
{
i++;
tmpName = path + "\\" + filename + "_" + (i + 1).ToString() + ext;
}
return(tmpName);
}