Open XML的上传、下载 、删除 ......文件路径

/// <summary>
/// Get download site, if download tempfolder not existed, create it first
/// </summary>
/// <param name="filePath">the template file path</param>
/// <returns>download path</returns>
private string GetDownloadFilePath(string filePath)
{
string downloadFilePath = "";
if (!string.IsNullOrEmpty(filePath))
{
string fileName = filePath.Substring(filePath.LastIndexOf("\\") + 1);
fileName = fileName.Substring(0, fileName.LastIndexOf(".")) + "_" + DateTime.Now.ToString("yyyyMMddHHmmssffff", System.Globalization.DateTimeFormatInfo.InvariantInfo);//add current time to the fileName
downloadFilePath = Utility.GetAppSetting("TempDirectory_Download");
//if download temp folder not existed, create it
if (!Directory.Exists(downloadFilePath))
{
Directory.CreateDirectory(downloadFilePath);
}
downloadFilePath += fileName + filePath.Substring(filePath.LastIndexOf("."));
}
return downloadFilePath;
}
/// <summary>
/// delete the temp files which were not created by today
/// </summary>
/// <param name="filePath">the temp directory for download</param>
private void DeletePreviousDayData(string filePath)
{
try
{
if (!string.IsNullOrEmpty(filePath) && filePath.LastIndexOf("_") > 0)
{
string currentDay = filePath.Substring(filePath.LastIndexOf("_") + 1, 8);
string folderPath = Utility.GetAppSetting("TempDirectory_Download");
if (Directory.Exists(folderPath))
{
foreach (string entry in Directory.GetFileSystemEntries(folderPath))
{
if (File.Exists(entry) && entry.LastIndexOf("_") > 0)
{
if (entry.Substring(entry.LastIndexOf("_") + 1).Length == 23)//yyyyMMddHHmmssffff + .docm
{
string generateDate = entry.Substring(entry.LastIndexOf("_") + 1, 8);
if (generateDate != currentDay)
{
File.Delete(entry);
}
}
}
}
}
}
}
catch
{

}
}

/// <summary>
/// Copy file to temp path
/// </summary>
/// <param name="path1">file full path</param>
/// <param name="path2">the temp full path to be copied to</param>
/// <returns></returns>
private string CopyFileToTempServer(string path1, string path2)
{
string errMsg = "";
try
{
FileInfo fi = new FileInfo(path1);
//delete file which generated at previous day in the temp file
DeletePreviousDayData(path2);
FileInfo fi1 = new FileInfo(path2);
if (fi1.Exists)
{
fi1.Delete();
}
//copy to the temp folder
if (fi.Exists)
{
fi.CopyTo(path2);
}

}
catch
{
errMsg = "Copy file to " + path2 + " failed. Maybe you don't have its permission, or the temp file couldnot be update f                    or its readonly, please check it!";// += ex.ToString();
}
return errMsg;
}