public static string Upload(FileType fileType, int maxFileSize, out string[] orginalFileName, out string[] fileSize, out string[] newFileName, HttpFileCollectionBase hpfs)
{
var i = 0;
StringBuilder builder = new StringBuilder();
if (hpfs.Count > 0)
{
var rank = hpfs.Count;
orginalFileName = new string[rank];
fileSize = new string[rank];
newFileName = new string[rank];
for (var j = 0; j < rank; j++)
{
orginalFileName[j] = fileSize[j] = newFileName[j] = string.Empty;
}
bool flag = true;
string uploadpath = GetUploadPath(fileType);
for (var l = 0; l < hpfs.Count; l++)
{
HttpPostedFileBase hpf = hpfs[l];
flag = ExecUploadFile(hpf, uploadpath, fileType, maxFileSize, out orginalFileName[i], out fileSize[i], out newFileName[i]);
i++;
if (!flag && hpf.HasFile())
{
builder.AppendFormat(@"第{0}个文件上传出错:
文件类型-{1};
文件大小-{2}k;
允许上传的文件类型:{3};
允许上传的文件大小:{4}M",
(i),
Path.GetExtension(hpf.FileName),
hpf.ContentLength / 1024,
GetAllowExt(fileType),
DefaultFileMaxSize / (1024 * 1024)
);
continue;
}
}
}
else
{
orginalFileName = null;
fileSize = null;
newFileName = null;
builder.Append("没有上传文件！");
}
return(builder.ToString());
}
public static bool AllowFile(this HttpPostedFileBase file)
{
var allowedExtensions = new[] { ".jpg", ".png", ".gif", ".jpge" };
if (!file.HasFile())
{
return(false);
}
var extension = Path.GetExtension(file.FileName);
return(extension != null && allowedExtensions.Contains(extension.ToLower()) ? true : false);
}
public static string AddNewGuidNameToFileToPDF(this HttpPostedFileBase file)
{
if (file.HasFile())
{
string fileNewName = Guid.NewGuid().ToString();
//string fileExtension = Path.GetExtension(file.FileName);
fileNewName = string.Format("{0}{1}", fileNewName, ".pdf");
return(fileNewName);
}
return("");
}
/// <summary>
/// verifica se a imagem é jpg, gif, ou png
/// </summary>
/// <param name="file"></param>
/// <returns></returns>
public static bool CheckIfFileIsImageFormat(this HttpPostedFileBase file)
{
if (file.HasFile())
{
string fileExtension = file.FileName.Right(4);
Regex reg = new Regex(@"\.(jpg|gif|png)$");
if (reg.Match(fileExtension).Success)
{
return(true);
}
}
return(false);
}
/// <summary>
/// Substitui o nome do arquivo atual adicionando um numero para o documento
/// </summary>
/// <param name="file"></param>
/// <returns></returns>
public static string AddNewNameForDocument(this HttpPostedFileBase file)
{
if (file.HasFile())
{
Random rnd = new Random();
string fileNewName = string.Format("{0}_{1}", file.FileName.Left(file.FileName.Length - 4), rnd.Next(100, 1000).ToString());
string fileExtension = Path.GetExtension(file.FileName);
fileNewName = string.Format("{0}{1}", fileNewName, fileExtension);
return(fileNewName);
}
return("");
}
private static bool ExecUploadFile(HttpPostedFileBase hpf, string uploadPath, FileType fileType, int maxSize, out string orginalName, out string fileSize, out string newFileName)
{
orginalName = string.Empty;
fileSize = string.Empty;
newFileName = string.Empty;
try
{
if (!hpf.HasFile())
{
return(true);
}
string fileName = Path.GetFileName(hpf.FileName);
string fileExt = Path.GetExtension(hpf.FileName);
int filesize = hpf.ContentLength;
//检测文件类型
if (!CheckValidFile(fileType, fileExt))
{
return(false);
}
//检测文件大小
if (!CheckFileSize(maxSize, filesize))
{
return(false);
}
//CreateDirectory(path);//创建文件夹
orginalName = fileName; //原始名字
fileSize = filesize.ToString();
fileName = GeneralFileName() + fileExt; //新名字
newFileName = Path.Combine(uploadPath, fileName);
hpf.SaveAs(newFileName);
return(true);
}
catch (IOException e)
{
LogHelper.Error(e);
return(false);
}
catch (Exception ex)
{
LogHelper.Error(ex);
return(false);
}
}
/// <summary>
/// 上传店铺简介图片
/// </summary>
/// <param name="fileData"></param>
/// <returns></returns>
public JsonResult UploadStoreImg()
{
HttpPostedFileBase fileData = Request.Files[0];
string saveFilePath;
if (!fileData.HasFile())
{
return(Json(new ImageView()
{
Error = 1, Message = "上載的圖片无效！"
}));
}
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();
CheckOrCreateDirectory(ConfigHelper.SharePath + relativeDir);
string tempStr = StringHelper.GetRandomString(12) + imageExtension;
saveFilePath = relativeDir + StringHelper.GetRandomString(12) + imageExtension;
fileData.SaveAs(ConfigHelper.SharePath + saveFilePath);
}
}
catch
{
saveFilePath = string.Empty;
}
string saveFileUrl = ConfigHelper.ImageServer + saveFilePath.Replace(ConfigHelper.SharePath, "").Replace('\\', '/');
var image = new ImageView {
Path = saveFilePath.Replace('\\', '/'), Url = saveFileUrl
};
return(Json(image));
}
public static bool IsAllowedFileType(this HttpPostedFileBase file)
{
if (file.HasFile() == false)
{
return(false);
}
string mimeType = file.ContentType;
if (mimeType.In("text/plain", "application/x-msaccess", "application/vnd.ms-excel", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "application/onenote", "application/vnd.ms-powerpoint", "application/vnd.openxmlformats-officedocument.presentationml.presentation", "application/msword", "application/vnd.openxmlformats-officedocument.wordprocessingml.document", "application/vnd.visio", "application/pdf", "application/vnd.visio2013", "image/bmp", "image/gif", "image/jpeg", "image/png", "application/zip"))
{
return(true);
}
else
{
return(false);
}
}
public static bool IsWebFriendlyImage(HttpPostedFileBase file)
{
if (file.HasFile() == false)
{
return(false);
}
if (file.ContentLength > 2 * 1024 * 1024 || file.ContentLength < 1024)
{
return(false);
}
try
{
using (var img = Image.FromStream(file.InputStream))
{
return(ImageFormat.Jpeg.Equals(img.RawFormat) ||
ImageFormat.Png.Equals(img.RawFormat) ||
ImageFormat.Gif.Equals(img.RawFormat));
}
} catch { return(false); }
}
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));
}
/// <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
}));
}
/// <summary>
/// 商品上传及自动剪切
/// </summary>
/// <returns></returns>
public JsonResult UploadImageAndCut()
{
string relativePath = string.Empty;
string url = string.Empty;
ImageView imageView = new ImageView();
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();
CheckOrCreateDirectory(ConfigHelper.SharePath + relativeDir);
//保存原图
relativePath = relativeDir + StringHelper.GetRandomString(12) + imageExtension;
var absolutePath = ConfigHelper.SharePath + relativePath;
fileData.SaveAs(absolutePath);
url = ConfigHelper.ImageServer + relativePath.Replace('\\', '/');
//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.GetSavePathTemp();
string relativePathNew = relativeDirNew + StringHelper.GetRandomString(12) + imageExtension;
string absolutePathnew = ConfigHelper.SharePath + relativePathNew;
string urlNew = ConfigHelper.ImageServer + relativePathNew.Replace('\\', '/');
ReCompressImage(absolutePath, absolutePathnew);
relativePath = relativePathNew;
url = urlNew;
}
//这个为了剪切功能生成图片大小
imageView = CutImageAndReturnPath(false, absolutePath, 0);
}
}
catch (Exception ex)
{
// LogHelper.GetLogger(typeof(UtilityController)).Error("上传失败:" + ex.ToString());
}
return(Json(imageView));
}
