/// <summary>
/// 保存文件 返回对象
/// </summary>
/// <param name="file"></param>
/// <returns></returns>
public UserPictureFile SavePostedFile(HttpPostedFile file)
{
byte[] btImgs = new byte[file.ContentLength];
file.InputStream.Read(btImgs, 0, btImgs.Length);
///压缩图片
System.Drawing.Image original_image = System.Drawing.Image.FromStream(file.InputStream); //使用流创建图片
int width = original_image.Width; //图片的宽度
int height = original_image.Height; //图片的高度
ComputWidthHeight(ref width, ref height);
System.Drawing.Image newImg = PictureFileConverter.GetThumbnailImage("", width, height, file.InputStream);
byte[] newBytes = PictureFileConverter.ImageToByteArray(newImg, System.Drawing.Imaging.ImageFormat.Jpeg);
string fileBase64Str = Convert.ToBase64String(newBytes);
newImg.Dispose(); //释放
file.InputStream.Dispose(); //释放
original_image.Dispose(); //释放
///压缩图片 结束
UserPictureFile model = new UserPictureFile();
model.FileContent = fileBase64Str;
model.Extension = file.ContentType;
model.FileName = file.FileName;
model.OperatorId = string.Empty;
model.PictureFileNo = DateTime.Now.ToString("yyyyMMddHHmmssfff") + ThreadSafeRandom.Next(1000).ToString("000");
InsertPicFile(model);
return(model);
}
public ImageModel GetPic(int width, int height, string pictureFileNo, string type)
{
//如果图片不存在的错误----
string filecontent = string.Empty;
string picExtension = string.Empty;
try
{
switch (type)
{
case "1":
ProductPictureFile model = DapperUtil.QueryByIdentityWithNoLock <ProductPictureFile>(pictureFileNo);
filecontent = model.FileContent;
picExtension = model.Extension;
break;
case "2":
SystemPictureFile model2 = DapperUtil.QueryByIdentityWithNoLock <SystemPictureFile>(pictureFileNo);
filecontent = model2.FileContent;
picExtension = model2.Extension;
break;
case "3":
UserPictureFile model3 = DapperUtil.QueryByIdentityWithNoLock <UserPictureFile>(pictureFileNo);
filecontent = model3.FileContent;
picExtension = model3.Extension;
break;
}
}
catch (Exception)
{
return(new ImageModel());
}
Image outImage = PictureFileConverter.GetThumbnailImage(filecontent, width, height);
ImageModel imgModel = new ImageModel
{
Extension = picExtension,
Image = outImage
};
return(imgModel);
}
public void InsertPicFile(UserPictureFile model)
{
DapperUtil.Insert <UserPictureFile>(model);
}
private Dictionary <string, string> CheckOrSaveExperienceReportImg(Boolean isSave = false, Boolean notcheck = false)
{
#region 图片上传与检测
Dictionary <string, string> result = new Dictionary <string, string>();
result["success"] = "";
result["error"] = "";
HttpFileCollection Files = System.Web.HttpContext.Current.Request.Files;
int fileCount = 0;
if (Files != null && Files.Count > 0)// && Files[0].ContentLength > 0)
{
List <string> indexes = new List <string>();
string types = null;// AppSettingManager.AppSettings["InputUserCommentImgType"];
string[] allowTypes = string.IsNullOrEmpty(types) ? (new string[] { ".jpg", ".gif", ".png", ".jpeg" }) : (types.Split('/'));
//允许上传的大小 , 以字节为单位 , 稍后读取配置文件
int allowSize = 4 * 1024 * 1024;
for (int i = 0; i < Files.Count; i++)
{
if (indexes.Contains(i.ToString()) || Files[i].ContentLength == 0)
{
continue;
}
string fileFullName = Files[i].FileName;
string fileType = System.IO.Path.GetExtension(fileFullName).ToLower();
string fileName = Path.GetFileName(fileFullName);
ImageTypeEnum[] allowType = new ImageTypeEnum[] { ImageTypeEnum.JPG, ImageTypeEnum.PNG, ImageTypeEnum.GIF };
if (notcheck || allowTypes.Contains(fileType) && (allowType.Contains(ImageTypeCheck.CheckImageType(Files[i].InputStream, false))))
{
int conLen = Files[i].ContentLength;
if (conLen <= allowSize && conLen > 0)//需要保存时
{
if (fileCount == 3)
{
result["error"] = "上传图片数量最多为3张";
return(result);
}
fileCount++;
if (!isSave)
{
continue;
}
UserPictureFile model = new UserPictureFile();
//读取文件为 二进制流 , 保存到 图片表 , 返回 图片编号
model = productCommentService.SavePostedFile(Files[i]);
result["success"] = result["success"] + "|" + model.PictureFileNo;
}
else if (conLen > allowSize)
{
result["error"] = "上传文件长度超过4MB";
return(result);
}
}
else
{
result["error"] = "上传文件类型错误";
return(result);
}
}
}
else
{
result["success"] = "";
}
if (fileCount == 0)
{
result["success"] = ""; result.Add("noimg", "noimg");
}
else
{
if (result["success"].Length == 0)
{
result["success"] = "1";
}
}
return(result);
#endregion
}
