private Resource_FilesStatus UploadFile(HttpContext context, HttpPostedFile Httpfiles)
{
Resource_FilesStatus Resource = new Resource_FilesStatus();
if (Httpfiles != null && Httpfiles.ContentLength > 0)
{
//To verify that if the suffix name of the uploaded files meets the DNN HOST requirements
Boolean retValue = FileSystemUtils.CheckValidFileName(Httpfiles.FileName);
if (retValue)
{
//构造文件的存放目录
String FileName = Httpfiles.FileName;
String tempName = WebHelper.GetStringParam(context.Request, "id", "");
String Extension = Path.GetExtension(FileName);
String leftName = FileName.Replace(Extension, "");
String FileWebPath = String.Format("{0}PowerForms/Multiplefiles/{1}/{2}/{3}-[{4}]{5}", PortalSettings.HomeDirectory, ModuleId, DateTime.Now.ToString("yyyyMMdd"), leftName, tempName, Extension);
String FileServerPath = context.Request.MapPath(FileWebPath);
//构造文件对象
FileInfo Savefile = new FileInfo(FileServerPath);
//文件夹构造
if (!Savefile.Directory.Exists)
{
Savefile.Directory.Create();
}
//文件是否存在||存在的话需要重新构造名称filename_2.txt
Int32 FileIndex = 2;
while (Savefile.Exists)
{
FileWebPath = String.Format("{0}PowerForms/Multiplefiles/{1}/{2}/{3}_{4}-[{5}]{6}", PortalSettings.HomeDirectory, ModuleId, DateTime.Now.ToString("yyyyMMdd"), leftName, FileIndex, tempName, Extension);
FileServerPath = context.Request.MapPath(FileWebPath);
Savefile = new FileInfo(FileServerPath);
FileIndex++;
}
//构造需要返回的信息
Resource.name = FileName;
Resource.size = Httpfiles.ContentLength;
Resource.url = FileWebPath;
Resource.type = Httpfiles.ContentType;
//构造指定存储路径
Httpfiles.SaveAs(Savefile.FullName);
}
}
else
{
//文件大小为空或者是0
}
return(Resource);
}
// Upload entire file
private void UploadWholeFile(HttpContext context, List <Resource_FilesStatus> statuses)
{
for (int i = 0; i < context.Request.Files.Count; i++)
{
var file = context.Request.Files[i];
if (file != null && !String.IsNullOrEmpty(file.FileName) && file.ContentLength > 0)
{
Resource_FilesStatus Resource = UploadFile(context, file);
statuses.Add(Resource);
}
}
}
// Upload partial file
private void UploadPartialFile(string fileName, HttpContext context, List <Resource_FilesStatus> statuses)
{
if (context.Request.Files.Count != 1)
{
throw new HttpRequestValidationException("Attempt to upload chunked file containing more than one fragment per request");
}
var file = context.Request.Files[0];
if (file != null && !String.IsNullOrEmpty(file.FileName) && file.ContentLength > 0)
{
Resource_FilesStatus Resource = UploadFile(context, file);
statuses.Add(Resource);
}
}
/// <summary>
/// 复制文件
/// </summary>
/// <param name="hpFile"></param>
/// <param name="pmb"></param>
/// <returns></returns>
public static String CopyFile(Resource_FilesStatus Resource_File, PortalModuleBase pmb)
{
String WebFilePath = Resource_File.url;
String SaveFilePath = pmb.MapPath(WebFilePath);
FileInfo SaveFile = new FileInfo(SaveFilePath);
String FileName = Resource_File.name.Replace(" ", "_");
if (FileName.IndexOf(@"\") >= 0)
{
FileName = FileName.Substring(FileName.LastIndexOf(@"\"), FileName.Length - FileName.LastIndexOf(@"\")).Replace(@"\", "");
}
String Extension = Path.GetExtension(FileName).Replace(".", "");
//构造保存路径
String FileUrl = FileName;
FileInfo file = new FileInfo(pmb.MapPath(String.Format("~/Portals/{0}/PowerForms/{1}/{2}", pmb.PortalId, pmb.ModuleId, FileName)));
if (!file.Directory.Exists)
{
file.Directory.Create();
}
int ExistsCount = 1;
//检测文件名是否存在
while (file.Exists)
{
FileUrl = String.Format("{0}_{1}.{2}", FileName.Replace("." + Extension, ""), ExistsCount, Extension);
file = new FileInfo(pmb.MapPath(String.Format("~/Portals/{0}/PowerForms/{1}/{2}", pmb.PortalId, pmb.ModuleId, FileUrl)));
ExistsCount++;
}
//保存文件到文件夹
SaveFile.MoveTo(file.FullName);
return(FileUrl);
}