//上传主要部分。
public void Open()
{
HttpPostedFile hpFile = _FormFile.PostedFile;
if (hpFile == null || hpFile.FileName.Trim() == "")
{
_Error = 1;
return;
}
string Ext = GetExt(hpFile.FileName);
if (!IsUpload(Ext))
{
_Error = 2;
return;
}
int iLen = hpFile.ContentLength;
if (iLen > _MaxSize)
{
_Error = 3;
return;
}
try
{
//判断文件夹是否存在.不存在创建!
if (!Directory.Exists(_SavePath))
{
Directory.CreateDirectory(_SavePath);
}
byte[] bData = new byte[iLen];
hpFile.InputStream.Read(bData, 0, iLen);
string FName;
FName = FileName(Ext);
string TempFile = "";
if (_IsDraw)
{
TempFile = FName.Split('.').GetValue(0).ToString() + "_temp." + FName.Split('.').GetValue(1).ToString();
}
else
{
TempFile = FName;
}
FileStream newFile = new FileStream(_SavePath + TempFile, FileMode.Create);
newFile.Write(bData, 0, bData.Length);
newFile.Flush();
int _FileSizeTemp = hpFile.ContentLength;
if (_IsDraw)
{
if (_DrawStyle == 0)
{
System.Drawing.Image Img1 = System.Drawing.Image.FromStream(newFile);
Graphics g = Graphics.FromImage(Img1);
g.DrawImage(Img1, 100, 100, Img1.Width, Img1.Height);
Font f = new Font(_Font, _FontSize);
Brush b = new SolidBrush(Color.Red);
string addtext = _AddText;
g.DrawString(addtext, f, b, _DrawString_x, _DrawString_y);
g.Dispose();
Img1.Save(_SavePath + FName);
Img1.Dispose();
}
else
{
System.Drawing.Image image = System.Drawing.Image.FromStream(newFile);
System.Drawing.Image copyImage = System.Drawing.Image.FromFile(HttpContext.Current.Server.MapPath(_CopyIamgePath));
Graphics g = Graphics.FromImage(image);
g.DrawImage(copyImage, new Rectangle(image.Width - copyImage.Width - 5, image.Height - copyImage.Height - 5, copyImage.Width, copyImage.Height), 0, 0, copyImage.Width, copyImage.Height, GraphicsUnit.Pixel);
g.Dispose();
image.Save(_SavePath + FName);
image.Dispose();
}
}
try
{
//获取图片的高度和宽度
System.Drawing.Image Img = System.Drawing.Image.FromStream(newFile);
_Width = Img.Width;
_Height = Img.Height;
//生成缩略图部分
if (_IsCreateImg)
{
//如果上传文件小于15k，则不生成缩略图。
if (iLen > 15360)
{
System.Drawing.Image newImg = Img.GetThumbnailImage(_sWidth, _sHeight, null, System.IntPtr.Zero);
newImg.Save(_SavePath + FName.Split('.').GetValue(0).ToString() + "_s." + FName.Split('.').GetValue(1).ToString());
newImg.Dispose();
_Iss = true;
}
}
if (_IsDraw)
{
if (File.Exists(_SavePath + FName.Split('.').GetValue(0).ToString() + "_temp." + FName.Split('.').GetValue(1).ToString()))
{
newFile.Dispose();
File.Delete(_SavePath + FName.Split('.').GetValue(0).ToString() + "_temp." + FName.Split('.').GetValue(1).ToString());
}
}
}
catch { }
newFile.Close();
newFile.Dispose();
_OutFileName = FName;
_FileSize = _FileSizeTemp;
_Error = 0;
return;
}
catch
{
_Error = 4;
return;
}
}
/// <summary>
/// 上传图片（功能丰富）
/// </summary>
public void Upload()
{
HttpPostedFile hpFile = _FormFile.PostedFile;
if (hpFile == null || hpFile.FileName.Trim() == "")
{
_Error = 1;
return;
}
string Ext = GetExt(hpFile.FileName);
if (!CheckImageType(Ext))
{
_Error = 2;
return;
}
int iLen = hpFile.ContentLength;
if (iLen > _MaxSize)
{
_Error = 3;
return;
}
try
{
if (!Directory.Exists(_SavePath))
{
Directory.CreateDirectory(_SavePath);
}
byte[] bData = new byte[iLen];
hpFile.InputStream.Read(bData, 0, iLen);
string FName;
FName = FileName(Ext);
string TempFile = "";
if (_IsDraw)
{
TempFile = FName.Split('.').GetValue(0).ToString() + "_temp." + FName.Split('.').GetValue(1).ToString();
}
else
{
TempFile = FName;
}
FileStream newFile = new FileStream(_SavePath + TempFile, FileMode.Create);
newFile.Write(bData, 0, bData.Length);
newFile.Flush();
int _FileSizeTemp = hpFile.ContentLength;
string ImageFilePath = _SavePath + FName;
if (_IsDraw)
{
if (_DrawStyle == 0)
{
System.Drawing.Image Img1 = System.Drawing.Image.FromStream(newFile);
Graphics g = Graphics.FromImage(Img1);
g.DrawImage(Img1, 100, 100, Img1.Width, Img1.Height);
Font f = new Font(_Font, _FontSize);
Brush b = new SolidBrush(Color.Red);
string addtext = _AddText;
g.DrawString(addtext, f, b, _DrawString_x, _DrawString_y);
g.Dispose();
Img1.Save(ImageFilePath);
Img1.Dispose();
}
else
{
System.Drawing.Image image = System.Drawing.Image.FromStream(newFile);
System.Drawing.Image copyImage = System.Drawing.Image.FromFile(_CopyIamgePath);
Graphics g = Graphics.FromImage(image);
g.DrawImage(copyImage, new Rectangle(image.Width - copyImage.Width - 5, image.Height - copyImage.Height - 5, copyImage.Width, copyImage.Height), 0, 0, copyImage.Width, copyImage.Height, GraphicsUnit.Pixel);
g.Dispose();
image.Save(ImageFilePath);
image.Dispose();
}
}
//获取图片的高度和宽度
System.Drawing.Image Img = System.Drawing.Image.FromStream(newFile);
_Width = Img.Width;
_Height = Img.Height;
//生成缩略图部分
if (_IsCreateImg)
{
#region 缩略图大小只设置了最大范围，并不是实际大小
float realbili = (float)_Width / (float)_Height;
float wishbili = (float)_sWidth / (float)_sHeight;
//实际图比缩略图最大尺寸更宽矮，以宽为准
if (realbili > wishbili)
{
_sHeight = (int)((float)_sWidth / realbili);
}
//实际图比缩略图最大尺寸更高长，以高为准
else
{
_sWidth = (int)((float)_sHeight * realbili);
}
#endregion
this.OutThumbFileName = FName.Split('.').GetValue(0).ToString() + "_s." + FName.Split('.').GetValue(1).ToString();
string ImgFilePath = _SavePath + this.OutThumbFileName;
System.Drawing.Image newImg = Img.GetThumbnailImage(_sWidth, _sHeight, null, System.IntPtr.Zero);
newImg.Save(ImgFilePath);
newImg.Dispose();
_Iss = true;
}
if (_IsDraw)
{
if (File.Exists(_SavePath + FName.Split('.').GetValue(0).ToString() + "_temp." + FName.Split('.').GetValue(1).ToString()))
{
newFile.Dispose();
File.Delete(_SavePath + FName.Split('.').GetValue(0).ToString() + "_temp." + FName.Split('.').GetValue(1).ToString());
}
}
newFile.Close();
newFile.Dispose();
_OutFileName = FName;
_FileSize = _FileSizeTemp;
_Error = 0;
return;
}
catch (Exception ex)
{
_Error = 4;
return;
}
}
public void Upload()
{
HttpPostedFile hpFile = _FormFile;
if (hpFile == null || hpFile.FileName.Trim() == "")
{
_Error = 1;
return;
}
string Ext = GetExt(hpFile.FileName);
if (!IsUpload(Ext))
{
_Error = 2;
return;
}
int iLen = hpFile.ContentLength;
if (iLen > _MaxSize)
{
_Error = 3;
return;
}
try
{
if (!Directory.Exists(_SavePath))
{
Directory.CreateDirectory(_SavePath);
}
byte[] bData = new byte[iLen];
hpFile.InputStream.Read(bData, 0, iLen);
string FName;
FName = FileName(Ext);
string TempFile = "";
if (_IsDraw)
{
TempFile = FName.Split('.').GetValue(0).ToString() + "_temp." + FName.Split('.').GetValue(1).ToString();
}
else
{
TempFile = FName;
}
FileStream newFile = new FileStream(_SavePath + TempFile, FileMode.Create);
newFile.Write(bData, 0, bData.Length);
newFile.Flush();
int _FileSizeTemp = hpFile.ContentLength;
string ImageFilePath = _SavePath + FName;
if (_IsDraw)
{
if (_DrawStyle == 0)
{
System.Drawing.Image Img1 = System.Drawing.Image.FromStream(newFile);
Graphics g = Graphics.FromImage(Img1);
g.DrawImage(Img1, 100, 100, Img1.Width, Img1.Height);
Font f = new Font(_Font, _FontSize);
Brush b = new SolidBrush(Color.Red);
string addtext = _AddText;
g.DrawString(addtext, f, b, _DrawString_x, _DrawString_y);
g.Dispose();
Img1.Save(ImageFilePath);
Img1.Dispose();
}
else
{
System.Drawing.Image image = System.Drawing.Image.FromStream(newFile);
System.Drawing.Image copyImage = System.Drawing.Image.FromFile(_CopyIamgePath);
Graphics g = Graphics.FromImage(image);
g.DrawImage(copyImage, new Rectangle(image.Width - copyImage.Width - 5, image.Height - copyImage.Height - 5, copyImage.Width, copyImage.Height), 0, 0, copyImage.Width, copyImage.Height, GraphicsUnit.Pixel);
g.Dispose();
image.Save(ImageFilePath);
image.Dispose();
}
}
//获取图片的高度和宽度
System.Drawing.Image Img = System.Drawing.Image.FromStream(newFile);
_Width = Img.Width;
_Height = Img.Height;
//生成小缩略图部分
if (_IsCreateThumbImg)
{
#region 缩略图大小只设置了最大范围，并不是实际大小
int x = 0;
int y = 0;
if (_Width <= _tWidth && _Height <= _tHeight)
{
_tWidth = _Width;
_tHeight = _Height;
}
else
{
float realbili = (float)_Width / (float)_Height;
float wishbili = (float)_tWidth / (float)_tHeight;
switch (ThumbStyle)
{
case 1:
if (_Width <= _tWidth)
{
_tWidth = _Width;
_tHeight = _Height;
}
else
{
_tHeight = (int)((float)_tWidth / realbili);
}
break;
case 2:
if (_Height <= _tHeight)
{
_tWidth = _Width;
_tHeight = _Height;
}
else
{
_tWidth = (int)((float)_tHeight * realbili);
}
break;
case 3:
//实际图比缩略图最小尺寸更宽矮，以宽为准
if (realbili > wishbili)
{
int temp_width = _Width;
_Width = _Height * _tWidth / _tHeight;
y = 0;
x = (temp_width - _Width) / 2;
}
//实际图比缩略图最小尺寸更高长，以高为准
else
{
int temp_Height = _Height;
_Height = _Width * _tHeight / _tWidth;
x = 0;
y = (temp_Height - _Height) / 2;
}
break;
default:
//实际图比缩略图最大尺寸更宽矮，以宽为准
if (realbili > wishbili)
{
_tHeight = (int)((float)_tWidth / realbili);
}
//实际图比缩略图最大尺寸更高长，以高为准
else
{
_tWidth = (int)((float)_tHeight * realbili);
}
break;
}
}
#endregion
this.OutThumbFileName = FName.Split('.').GetValue(0).ToString() + "_t." + FName.Split('.').GetValue(1).ToString();
string ImgFilePath = _SavePath + this.OutThumbFileName;
//System.Drawing.Image newImg = Img.GetThumbnailImage(_tWidth, _tHeight, null, System.IntPtr.Zero);
//newImg.Save(ImgFilePath);
//newImg.Dispose();
System.Drawing.Image tImg = System.Drawing.Image.FromStream(newFile);
//接着创建一个System.Drawing.Bitmap对象，并设置你希望的缩略图的宽度和高度。
Bitmap bmp = new Bitmap(_tWidth, _tHeight);
//从Bitmap创建一个System.Drawing.Graphics对象，用来绘制高质量的缩小图。
System.Drawing.Graphics gr = System.Drawing.Graphics.FromImage(bmp);
//设置 System.Drawing.Graphics对象的SmoothingMode属性为HighQuality
gr.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//下面这个也设成高质量
gr.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
//下面这个设成High
gr.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
//把原始图像绘制成上面所设置宽高的缩小图
System.Drawing.Rectangle rectDestination = new System.Drawing.Rectangle(0, 0, _tWidth, _tHeight);
gr.DrawImage(tImg, rectDestination, x, y, _Width, _Height, GraphicsUnit.Pixel);
//保存图像
bmp.Save(ImgFilePath);
//释放资源
bmp.Dispose();
tImg.Dispose();
_IsThumbOK = true;
}
_Width = Img.Width;
_Height = Img.Height;
//生成中缩略图部分
if (_IsCreateMidImg)
{
#region 缩略图大小只设置了最大范围，并不是实际大小
int x = 0;
int y = 0;
if (_Width <= _mWidth && _Height <= _mHeight)
{
_mWidth = _Width;
_mHeight = _Height;
}
else
{
float realbili = (float)_Width / (float)_Height;
float wishbili = (float)_mWidth / (float)_mHeight;
switch (MidStyle)
{
case 1:
if (_Width <= _mWidth)
{
_mWidth = _Width;
_mHeight = _Height;
}
else
{
_mHeight = (int)((float)_mWidth / realbili);
}
break;
case 2:
if (_Height <= _mHeight)
{
_mWidth = _Width;
_mHeight = _Height;
}
else
{
_mWidth = (int)((float)_mHeight * realbili);
}
break;
case 3:
//实际图比缩略图最小尺寸更宽矮，以宽为准
if (realbili > wishbili)
{
int temp_width = _Width;
_Width = _Height * _mWidth / _mHeight;
y = 0;
x = (temp_width - _Width) / 2;
}
//实际图比缩略图最小尺寸更高长，以高为准
else
{
int temp_Height = _Height;
_Height = _Width * _mHeight / _mWidth;
x = 0;
y = (temp_Height - _Height) / 2;
}
break;
default:
//实际图比缩略图最大尺寸更宽矮，以宽为准
if (realbili > wishbili)
{
_mHeight = (int)((float)_mWidth / realbili);
}
//实际图比缩略图最大尺寸更高长，以高为准
else
{
_mWidth = (int)((float)_mHeight * realbili);
}
break;
}
}
#endregion
this.OutMidFileName = FName.Split('.').GetValue(0).ToString() + "_m." + FName.Split('.').GetValue(1).ToString();
string ImgFilePath = _SavePath + this.OutMidFileName;
//System.Drawing.Image newImg = Img.GetThumbnailImage(_mWidth, _mHeight, null, System.IntPtr.Zero);
//newImg.Save(ImgFilePath);
//newImg.Dispose();
System.Drawing.Image mImg = System.Drawing.Image.FromStream(newFile);
//接着创建一个System.Drawing.Bitmap对象，并设置你希望的缩略图的宽度和高度。
Bitmap bmp = new Bitmap(_mWidth, _mHeight);
//从Bitmap创建一个System.Drawing.Graphics对象，用来绘制高质量的缩小图。
System.Drawing.Graphics gr = System.Drawing.Graphics.FromImage(bmp);
//设置 System.Drawing.Graphics对象的SmoothingMode属性为HighQuality
gr.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//下面这个也设成高质量
gr.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
//下面这个设成High
gr.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
//把原始图像绘制成上面所设置宽高的缩小图
System.Drawing.Rectangle rectDestination = new System.Drawing.Rectangle(0, 0, _mWidth, _mHeight);
gr.DrawImage(mImg, rectDestination, x, y, _Width, _Height, GraphicsUnit.Pixel);
//保存图像
bmp.Save(ImgFilePath);
//释放资源
bmp.Dispose();
mImg.Dispose();
_IsMidOK = true;
}
if (_IsDraw)
{
if (File.Exists(_SavePath + FName.Split('.').GetValue(0).ToString() + "_temp." + FName.Split('.').GetValue(1).ToString()))
{
newFile.Dispose();
File.Delete(_SavePath + FName.Split('.').GetValue(0).ToString() + "_temp." + FName.Split('.').GetValue(1).ToString());
}
}
newFile.Close();
newFile.Dispose();
_OutFileName = FName;
_FileSize = _FileSizeTemp;
_Error = 0;
return;
}
catch (Exception ex)
{
_Error = 4;
return;
}
}
