/// <summary>
/// 处理上传文件是图片类型的时候
/// </summary>
/// <param name="filePath">路径</param>
/// <param name="fileExt">文件后缀</param>
private void HanlderUploadImageFile(string filePath, string fileExt)
{
//是图片，即使生成对应尺寸
if (ImageExt.Contains(fileExt))
{
ThumbnailService.HandleImmediateThumbnail(filePath);
}
}
/// <summary>
/// Processes the request.
/// </summary>
/// <param name="context">The context.</param>
public void ProcessRequest(HttpContext context)
{
context.Response.Charset = "UTF-8";
byte[] _fileBuffer;
string _localFileName = string.Empty;
string _errMessage = string.Empty;
string _subFolder = string.Empty;
string _fileFolder = string.Empty;
string _filePath = string.Empty;;
var disposition = context.Request.ServerVariables["HTTP_CONTENT_DISPOSITION"];
if (disposition != null)
{
// HTML5上传
_fileBuffer = context.Request.BinaryRead(context.Request.TotalBytes);
_localFileName = Regex.Match(disposition, "filename=\"(.+?)\"").Groups[1].Value;// 读取原始文件名
}
else
{
HttpFileCollection _filecollection = context.Request.Files;
HttpPostedFile _postedfile = _filecollection.Get(this.FileInputName);
// 读取原始文件名
_localFileName = Path.GetFileName(_postedfile.FileName);
// 初始化byte长度.
_fileBuffer = new byte[_postedfile.ContentLength];
// 转换为byte类型
using (Stream stream = _postedfile.InputStream)
{
stream.Read(_fileBuffer, 0, _postedfile.ContentLength);
_filecollection = null;
}
}
string _fileExt = _localFileName.Substring(_localFileName.LastIndexOf('.') + 1).ToLower();
if (_fileBuffer.Length == 0)
{
_errMessage = "无数据提交";
}
else if (_fileBuffer.Length > this.MaxFilesize)
{
_errMessage = "文件大小超过" + this.MaxFilesize + "字节";
}
else if (!AllowExt.Contains(_fileExt))
{
_errMessage = "上传文件扩展名必需为：" + string.Join(",", AllowExt);
}
else
{
string _folder = context.Request["subfolder"] ?? "default";
UploadFolder _uploadFolderConfig = UploadConfigContext.UploadConfig.UploadFolders.FirstOrDefault(u => string.Equals(_folder, u.Path, StringComparison.OrdinalIgnoreCase));
DirType _dirType = _uploadFolderConfig == null ? DirType.Day : _uploadFolderConfig.DirType;
//根据配置里的DirType决定子文件夹的层次（月，天，扩展名）
switch (_dirType)
{
case DirType.Month:
_subFolder = "month_" + DateTime.Now.ToString("yyMM");
break;
case DirType.Ext:
_subFolder = "ext_" + _fileExt;
break;
case DirType.Day:
_subFolder = "day_" + DateTime.Now.ToString("yyMMdd");
break;
}
//fileFolder = Path.Combine(UploadConfigContext.UploadPath,
// folder,
// subFolder
// );
_fileFolder = CombinePaths(UploadConfigContext.UploadPath,
_folder,
_subFolder);
_filePath = Path.Combine(_fileFolder,
string.Format("{0}{1}.{2}", DateTime.Now.ToString("yyyyMMddhhmmss"), new Random(DateTime.Now.Millisecond).Next(10000), _fileExt)
);
if (!Directory.Exists(_fileFolder))
{
Directory.CreateDirectory(_fileFolder);
}
using (FileStream fs = new FileStream(_filePath, FileMode.Create, FileAccess.Write))
{
fs.Write(_fileBuffer, 0, _fileBuffer.Length);
fs.Flush();
}
//是图片，即使生成对应尺寸
if (ImageExt.Contains(_fileExt))
{
ThumbnailService.HandleImmediateThumbnail(_filePath);
}
this.OnUploaded(context, _filePath);
}
_fileBuffer = null;
context.Response.Write(this.GetResult(_localFileName, _filePath, _errMessage));
context.Response.End();
}