/// <summary>
/// 上传商品图片
/// </summary>
/// <returns></returns>
public JsonResult UploadImage(bool isTemp = false, int cutWidth = 0)
{
//相对路径
string relativePath = string.Empty;
string url = string.Empty;
int width = 0, height = 0;
HttpPostedFileBase fileData = Request.Files[0];
if (!fileData.HasFile())
{
return(Json(new ImageView()
{
Error = 1, Message = "上載的圖片无效！"
}));
}
if (fileData.ContentLength > (2 * 1024 * 1024))
{
return(Json(new ImageView()
{
Error = 1, Message = "上載的圖片尺寸不能超过2M！！"
}));
}
try
{
string uploadFileName = fileData.FileName;
string imageExtension = Path.GetExtension(uploadFileName);
if (!ValidateImageExtension(imageExtension))
{
return(Json(new ImageView()
{
Error = 1, Message = "不允許上載“" + imageExtension + "”格式的圖片！"
}));
}
else
{
string relativeDir = PathHelper.GetSaveSjPathImg();
if (isTemp)//保存到临时路径下
{
relativeDir = PathHelper.GetSavePathTemp();
}
CheckOrCreateDirectory(ConfigHelper.SharePath + relativeDir);
var fileName = StringHelper.GetRandomString(12);
//保存原图
relativePath = relativeDir + fileName + imageExtension;
var absolutePath = ConfigHelper.SharePath + relativePath;
fileData.SaveAs(absolutePath);
//重新压缩图片
if (fileData.ContentLength > (1024 * 500))//如果大于500k，那么就需要重新压缩图片了
{
string relativeDirNew = PathHelper.GetSaveSjPathImg();;
if (isTemp)//保存到临时路径下
{
relativeDirNew = PathHelper.GetSavePathTemp();
}
CheckOrCreateDirectory(ConfigHelper.SharePath + relativeDirNew);
fileName = StringHelper.GetRandomString(12);
string relativePathNew = relativeDirNew + fileName + imageExtension;
string absolutePathnew = ConfigHelper.SharePath + relativePathNew;
string urlNew = ConfigHelper.ImageServer + relativePathNew.Replace('\\', '/');
ReCompressImage(absolutePath, absolutePathnew);
relativePath = relativePathNew;
absolutePath = absolutePathnew;
url = urlNew;
}
//这个为了剪切功能生成图片大小
Bitmap originalImg = new Bitmap(absolutePath);
width = originalImg.Width;
height = originalImg.Height;
if (width < 300 || height < 300)
{
return(Json(new ImageView {
Error = 1, Message = "上載的圖片尺寸不能小於300x300"
}));
}
#region 生成缩略图
var thumbsDir = Path.GetDirectoryName(absolutePath);
EncoderParameters parms = new EncoderParameters(1);
var imgCodecInfo = GetImageCodecInfo(GetImageFormat(imageExtension));
parms.Param[0] = new EncoderParameter(Encoder.Quality, ((long)80));
//切640的图
Bitmap b640 = LTImage.ResizeImage(originalImg, 640, 640, true, true, true);
string imgPath640 = thumbsDir + "\\" + fileName + "_640" + imageExtension;
b640.Save(imgPath640, imgCodecInfo, parms);
b640.Dispose();
//切180的图
Bitmap b180 = LTImage.ResizeImage(originalImg, 180, 180, true, true, true);
originalImg.Dispose();
string imgPath180 = thumbsDir + "\\" + fileName + "_180" + imageExtension;
b180.Save(imgPath180, imgCodecInfo, parms);
b180.Dispose();
#endregion
url = ConfigHelper.ImageServer + relativePath.Replace('\\', '/');
}
}
catch (Exception ex)
{
// LogHelper.GetLogger(typeof(UtilityController)).Error("上传失败:" + ex.ToString());
return(Json(new ImageView {
Error = 1, Message = ex.Message
}));
}
return(Json(new ImageView {
Url = url, Path = relativePath, Width = width, Height = height
}));
}
public string UploadSupplierLogo()
{
HttpPostedFileBase fileData = Request.Files[0];
int newImgWidth = 0;
int newImgHeight = 0;
if (!fileData.HasFile())
{
return(JsonHelper.ToJson(new ImageView()
{
Error = 1, Message = "上載的圖片无效！"
}));
}
if (fileData.ContentLength > (512 * 1024))
{
return(JsonHelper.ToJson(new ImageView()
{
Error = 1, Message = "上載的圖片尺寸不能超过500KB！"
}));
}
string uploadFileName = fileData.FileName;
string imageExtension = Path.GetExtension(uploadFileName);
if (!ValidateImageExtension(imageExtension))
{
return(JsonHelper.ToJson(new ImageView()
{
Error = 1, Message = "不允許上載“" + imageExtension + "”格式的圖片！"
}));
}
string saveFilePath = string.Empty;
string saveFileDir = ConfigHelper.SharePath + PathHelper.GetSavePathImg();
if (!Directory.Exists(saveFileDir))
{
Directory.CreateDirectory(saveFileDir);
}
saveFilePath = saveFileDir + StringHelper.GetRandomString(12) + imageExtension;
fileData.SaveAs(saveFilePath);
Bitmap aImg = new Bitmap(saveFilePath);
Bitmap b = LTImage.ResizeImage(aImg, 300, 300);
newImgWidth = b.Width;
newImgHeight = b.Height;
if (fileData.ContentLength > (1024 * 500))//如果大于500k，那么就需要重新压缩图片了
{
string saveFileDirNew = ConfigHelper.SharePath + PathHelper.GetSavePathImg();
string saveFilePathNew = saveFileDirNew + StringHelper.GetRandomString(12) + imageExtension;
ReCompressImage(saveFilePath, saveFilePathNew);
saveFilePath = saveFilePathNew;
}
string saveImg200 = saveFilePath.Replace(imageExtension, "_218" + imageExtension);
SaveProductImageSizeOld(saveFilePath.Replace(ConfigHelper.SharePath, ""), saveImg200, 218, 218);
ImageView result = new ImageView()
{
Url = saveFilePath.Replace(ConfigHelper.SharePath, ConfigHelper.ImageServer).Replace("\\", "//"),
Path = saveFilePath.Replace(ConfigHelper.SharePath, ""),
};
return(JsonHelper.ToJson(result));
}
private ImageView CutImageAndReturnPath(bool isCut, string imgsrc, double x, double y = 0, double w = 150, double h = 150)
{
Bitmap originalImg = new Bitmap(imgsrc);
int origWidth = originalImg.Width;
int origHeight = originalImg.Height;
Bitmap newImg = LTImage.ResizeImage(originalImg, 300, 300, true, false);
int newWidth = newImg.Width;
int newHeight = newImg.Height;
if (!isCut)
{
x = 0; //(newWidth - 150) / 2;
if (newWidth < newHeight)
{
w = newWidth;
h = newWidth;
}
else
{
w = newHeight;
h = newHeight;
}
}
//转换系数
double zoom = Math.Round((double)originalImg.Width / (double)newImg.Width, 2);
//转换后新坐标
Point p = new Point(Convert.ToInt32(x * zoom), Convert.ToInt32(y * zoom));
//转换后新截图范围
Size s = new Size(Convert.ToInt32(w * zoom), Convert.ToInt32(h * zoom));
if (originalImg.Width > p.X + s.Width && originalImg.Height > p.Y + s.Height)
{
if (s.Width < 218 && s.Height < 218)
{
s.Width = s.Height = 218;
}
}
Bitmap newCutImg = LTImage.Cut(originalImg, p.X, p.Y, s.Width, s.Height);
var avatarDir = Path.GetDirectoryName(imgsrc);
var ext = ".jpg";//Path.GetExtension(imgsrc);
EncoderParameters parms = new EncoderParameters(1);
var jpgCodecInfo = GetImageCodecInfo(ImageFormat.Jpeg);
EncoderParameter parm = new EncoderParameter(Encoder.Quality, ((long)80));
parms.Param[0] = parm;
//if (origWidth < 640 || origHeight < 640)
//{
Bitmap b640 = LTImage.ResizeImage(newCutImg, 640, 640, true, true);
string big640 = avatarDir + @"\img_0" + ext;
b640.Save(big640, jpgCodecInfo, parms);
//}
//else
//{
Bitmap b320 = LTImage.ResizeImage(newCutImg, 320, 320, true, true);
string big320 = avatarDir + @"\img_320" + ext;
b320.Save(big320, jpgCodecInfo, parms);
//}
Bitmap b218 = LTImage.ResizeImage(newCutImg, 218, 218, true, true);
Bitmap b100 = LTImage.ResizeImage(newCutImg, 100, 100, true, true);
Bitmap b350 = LTImage.ResizeImage(newCutImg, 350, 350, true, true);
string imginit = avatarDir + @"\img_0_init" + ext;
string bigAvatarDir = avatarDir + @"\img_0_218" + ext;
string middleAvatarDir = avatarDir + @"\img_0_100" + ext;
string storePAvatarDir = avatarDir + @"\img_0_350" + ext;
//用户上传的图片重新命名
if (!System.IO.File.Exists(imginit))
{
originalImg.Save(imginit, jpgCodecInfo, parms);
}
//切218的图
b218.Save(bigAvatarDir, jpgCodecInfo, parms);
//切100的图
b100.Save(middleAvatarDir, jpgCodecInfo, parms);
b350.Save(storePAvatarDir, jpgCodecInfo, parms);
originalImg.Dispose();
newImg.Dispose();
newCutImg.Dispose();
b218.Dispose();
b100.Dispose();
b350.Dispose();
return(new ImageView
{
Height = origHeight,
Width = origWidth,
Name = Path.GetFileName(imgsrc),
Url = imgsrc.Replace(ConfigHelper.SharePath, ConfigHelper.ImageServer).Replace('\\', '/') + "?v=" + DateTime.Now.ToString("HHMMddss"),
Path = imgsrc.Replace(ConfigHelper.SharePath, "")
});
}