/// <summary>
/// 通用图片上传类
/// </summary>
/// <param name="PostedFile">HttpPostedFile控件</param>
/// <param name="SaveFolder">保存路径【sys.config配置路径】</param>
/// <returns>返回上传信息</returns>
public ResponseMessage FileSaveAs(System.Web.HttpPostedFile PostedFile, string SaveFolder)
{
ResponseMessage rm = new ResponseMessage();
try
{
if (string.IsNullOrEmpty(PostedFile.FileName))
{
TryError(rm, 4);
return(rm);
}
Random rd = new Random();
int rdInt = rd.Next(1000, 9999);
//重命名名称
string NewfileName = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + rdInt;
//获取上传文件的扩展名
string sEx = System.IO.Path.GetExtension(PostedFile.FileName);
if (!CheckValidExt(SetAllowFormat, sEx))
{
TryError(rm, 2);
return(rm);
}
//获取上传文件的大小
double PostFileSize = PostedFile.ContentLength / 1024.0 / 1024.0;
if (PostFileSize > SetAllowSize)
{
TryError(rm, 3);
return(rm);
}
if (!System.IO.Directory.Exists(SaveFolder))
{
System.IO.Directory.CreateDirectory(SaveFolder);
}
rm.FileName = NewfileName + sEx;
string fullPath = SaveFolder.Trim('\\') + "\\" + rm.FileName;
rm.WebPath = "/" + fullPath.Replace(HttpContext.Current.Server.MapPath("~/"), "").Replace("\\", "/");
rm.WebFilePath = rm.WebPath;
rm.filePath = fullPath;
rm.Size = PostFileSize;
PostedFile.SaveAs(fullPath);
System.Drawing.Bitmap bmp = new Bitmap(fullPath);
int realWidth = bmp.Width;
int realHeight = bmp.Height;
bmp.Dispose();
#region 检测图片宽度限制
if (SetMinWidth > 0)
{
if (realWidth < SetMinWidth)
{
TryError(rm, 7);
return(rm);
}
}
#endregion
#region 监测图片宽度是否超过600，超过的话，自动压缩到600
if (SetLimitWidth && realWidth > SetMaxWidth)
{
int mWidth = SetMaxWidth;
int mHeight = mWidth * realHeight / realWidth;
string tempFile = SaveFolder + Guid.NewGuid().ToString() + sEx;
File.Move(fullPath, tempFile);
CreateSmallPhoto(tempFile, mWidth, mHeight, fullPath, "", "");
File.Delete(tempFile);
}
#endregion
#region 压缩图片存储尺寸
if (sEx.ToLower() != ".gif")
{
CompressPhoto(fullPath, 100);
}
#endregion
//生成缩略图片高宽
if (string.IsNullOrEmpty(SetSmallImgWidth))
{
rm.Message = "上传成功,无缩略图";
return(rm);
}
string[] oWidthArray = SetSmallImgWidth.Split(',');
string[] oHeightArray = SetSmallImgHeight.Split(',');
if (oWidthArray.Length != oHeightArray.Length)
{
TryError(rm, 6);
return(rm);
}
for (int i = 0; i < oWidthArray.Length; i++)
{
if (Convert.ToInt32(oWidthArray[i]) <= 0 || Convert.ToInt32(oHeightArray[i]) <= 0)
{
continue;
}
string sImg = SaveFolder.TrimEnd('\\') + '\\' + NewfileName + "_" + i.ToString() + sEx;
//判断图片高宽是否大于生成高宽。否则用原图
if (realWidth > Convert.ToInt32(oWidthArray[i]))
{
if (SetCutImage)
{
CreateSmallPhoto(fullPath, Convert.ToInt32(oWidthArray[i]), Convert.ToInt32(oHeightArray[i]), sImg, "", "");
}
else
{
CreateSmallPhoto(fullPath, Convert.ToInt32(oWidthArray[i]), Convert.ToInt32(oHeightArray[i]), sImg, "", "", CutMode.CutNo);
}
}
else
{
if (SetCutImage)
{
CreateSmallPhoto(fullPath, realWidth, realHeight, sImg, "", "");
}
else
{
CreateSmallPhoto(fullPath, realWidth, realHeight, sImg, "", "", CutMode.CutNo);
}
}
}
#region 给大图添加水印
if (!string.IsNullOrEmpty(SetPicWater))
{
AttachPng(SetPicWater, fullPath);
}
else if (!string.IsNullOrEmpty(SetWordWater))
{
AttachText(SetWordWater, fullPath);
}
#endregion
}
catch (Exception ex)
{
TryError(rm, ex.Message);
}
return(rm);
}
/// <summary>
/// 通用图片上传类
/// </summary>
/// <param name="postedFile">HttpPostedFile控件</param>
/// <param name="savePath">保存路径</param>
/// <returns>返回上传信息</returns>
public UploadImageMessage FileSaveAs(HttpPostedFile postedFile, string savePath)
{
UploadImageMessage _uploadImageMsg = new UploadImageMessage();
try
{
if (string.IsNullOrEmpty(postedFile.FileName))
{
AddUploadImageMessage(_uploadImageMsg, 4);
return(_uploadImageMsg);
}
int _randomNumber = RandomHelper.NextNumber(1000, 9999);
string _fileName = DateTime.Now.FormatDate(12) + _randomNumber,
_fileEx = Path.GetExtension(postedFile.FileName);
if (!FileHelper.CheckValidExt(SetAllowFormat, _fileEx))
{
AddUploadImageMessage(_uploadImageMsg, 2);
return(_uploadImageMsg);
}
double _fileSize = postedFile.ContentLength / 1024.0 / 1024.0;
if (_fileSize > SetAllowSize)
{
AddUploadImageMessage(_uploadImageMsg, 3);
return(_uploadImageMsg);
}
if (!Directory.Exists(savePath))
{
Directory.CreateDirectory(savePath);
}
_uploadImageMsg.FileName = _fileName + _fileEx;
string _fullPath = savePath.Trim('\\') + "\\" + _uploadImageMsg.FileName;
_uploadImageMsg.WebPath = "/" + _fullPath.Replace(HttpContext.Current.Server.MapPath("~/"), "").Replace("\\", "/");
_uploadImageMsg.FilePath = _fullPath;
_uploadImageMsg.Size = _fileSize;
postedFile.SaveAs(_fullPath);
Bitmap _sourceBmp = new Bitmap(_fullPath);
int _sourceWidth = _sourceBmp.Width,
_sourceHeight = _sourceBmp.Height;
_sourceBmp.Dispose();
if (SetMinWidth > 0)
{
if (_sourceWidth < SetMinWidth)
{
AddUploadImageMessage(_uploadImageMsg, 7);
return(_uploadImageMsg);
}
}
if (SetLimitWidth && _sourceWidth > SetMaxWidth)
{
int _width = SetMaxWidth;
int _height = _width * _sourceHeight / _sourceWidth;
string _tempFile = savePath + Guid.NewGuid().ToString() + _fileEx;
File.Move(_fullPath, _tempFile);
ImageHelper.CreateSmallPhoto(_tempFile, _width, _height, _fullPath);
File.Delete(_tempFile);
}
if (_fileEx.ToLower() != ".gif")
{
ImageHelper.CompressPhoto(_fullPath, 100);
}
if (string.IsNullOrEmpty(SetSmallImgWidth))
{
_uploadImageMsg.Message = "上传成功,无缩略图";
return(_uploadImageMsg);
}
string[] _widthArray = SetSmallImgWidth.Split(',');
string[] _heightArray = SetSmallImgHeight.Split(',');
if (_widthArray.Length != _heightArray.Length)
{
AddUploadImageMessage(_uploadImageMsg, 6);
return(_uploadImageMsg);
}
for (int i = 0; i < _widthArray.Length; i++)
{
if (Convert.ToInt32(_widthArray[i]) <= 0 || Convert.ToInt32(_heightArray[i]) <= 0)
{
continue;
}
string _descFile = savePath.TrimEnd('\\') + '\\' + _fileName + "_" + i.ToString() + _fileEx;
//判断图片高宽是否大于生成高宽。否则用原图
if (_sourceWidth > Convert.ToInt32(_widthArray[i]))
{
if (SetCutImage)
{
ImageHelper.CreateSmallPhoto(_fullPath, Convert.ToInt32(_widthArray[i]), Convert.ToInt32(_heightArray[i]), _descFile);
}
else
{
ImageHelper.CreateSmallPhoto(_fullPath, Convert.ToInt32(_widthArray[i]), Convert.ToInt32(_heightArray[i]), _descFile, CutType.CutNo);
}
}
else
{
if (SetCutImage)
{
ImageHelper.CreateSmallPhoto(_fullPath, _sourceWidth, _sourceHeight, _descFile);
}
else
{
ImageHelper.CreateSmallPhoto(_fullPath, _sourceWidth, _sourceHeight, _descFile, CutType.CutNo);
}
}
}
if (!string.IsNullOrEmpty(SetPicWater))
{
ImageHelper.AttachPng(SetPicWater, _fullPath, SetWaterPosition.bottomRight);
}
if (!string.IsNullOrEmpty(SetWordWater))
{
ImageHelper.AttachText(SetWordWater, _fullPath);
}
}
catch (Exception ex)
{
AddUploadImageMessage(_uploadImageMsg, ex.Message);
}
return(_uploadImageMsg);
}