private ResultInfo UpLoadFile(string uploadPath, ImgExtTypeEnum imgExt, bool isThumbnail = false, bool size1M = true)
{
ResultInfo ri = new ResultInfo();
string delFilePath = Request.Params["DelFilePath"];
string type = Request.Params["itype"];
HttpPostedFileBase upfile = Request.Files["file"];
if (upfile == null)
{
ri.Msg = "请选择要上传的文件";
return(ri);
}
int aid = IsLogin ? (int)UserID : 0;
ri = FileSaveAs(upfile, imgExt, isThumbnail, aid, uploadPath, type, size1M);
//删除已存在的旧文件，旧文件不为空且应是上次文件，防止跨目录删除
if (!string.IsNullOrEmpty(delFilePath) && delFilePath.IndexOf("../", StringComparison.Ordinal) == -1)
{
UploadHelper.DeleteUpFile(delFilePath);
}
return(ri);
}
public ResultInfo UpLoadImg(string requestName, string savePath, ImgExtTypeEnum imgExt = ImgExtTypeEnum.jpg, Action <Func <ResultInfo>, ResultInfo> beforeSaveFile = null, string filename = null, bool onlyThumbImg = false, bool isNeedFile = true)
{
ResultInfo ri = new ResultInfo();
HttpPostedFileBase upfile = Request.Files[requestName];
if (isNeedFile)
{
if (upfile == null)
{
ri.Msg = "请选择要上传的文件";
}
else
{
string ext = Path.GetExtension(upfile.FileName);
if (!CheckFileExt(ext))
{
ri.Msg = $"不允许上传{ext}类型的文件！";
}
else
{
int maxlength = Convert.ToInt32(ConfigHelper.AppSettings("UploadFileMax"));//最大上传大小/M
if (upfile.ContentLength > maxlength * 1024 * 1024)
{
ri.Msg = "上传文件最大只能是{0}M".FormatWith(maxlength);
}
else
{
if (beforeSaveFile != null)
{
beforeSaveFile(() =>
{
SaveFile(ri, upfile, savePath, ext, imgExt, filename, onlyThumbImg);
return(ri);
}, ri);
}
else
{
SaveFile(ri, upfile, savePath, ext, imgExt, filename, onlyThumbImg);
}
}
}
}
}
else
{
beforeSaveFile(null, ri);
}
return(ri);
}
private void SaveFile(ResultInfo ri, HttpPostedFileBase upfile, string savePath, string ext, ImgExtTypeEnum imgExt, string filename, bool onlyThumbImg)
{
string localPath = UploadHelper.GetMapPath(savePath);
if (!Directory.Exists(localPath))
{
Directory.CreateDirectory(localPath);
}
ext = ext.ToLower().Contains("gif") ? ext : "." + imgExt.ToString();
//如果文件名为空，则重新命名 并添加上扩展名
if (filename.IsNullOrEmpty())
{
filename = DateTimeHelper.GetToday(9) + "_" + UserID + ext;
}
else
{
if (filename.IndexOf(".") == -1)
{
//补全扩展名
filename += ext;
}
}
if (onlyThumbImg)
{
using (Image image = Image.FromStream(upfile.InputStream))
{
string thnumFilename = "thumb_{0}".FormatWith(filename);
string thumbFullName = localPath + "/" + thnumFilename;
GetThumbnail(image, 100, 100).Save(thumbFullName);
ri.Ok = true;
ri.Url = savePath + "/" + thnumFilename;
}
}
else
{
string fullFilePath = localPath + "/" + filename;
upfile.SaveAs(fullFilePath);
string picpath = savePath + "/" + filename;
ri.Ok = true;
ri.Url = picpath;
}
}
/// <summary>
/// 文件上传方法
/// </summary>
/// <param name="upfile">文件流</param>
/// <param name="isthumbnail">是否缩略图</param>
/// <param name="userid"></param>
/// <returns></returns>
public ResultInfo FileSaveAs(HttpPostedFileBase upfile, ImgExtTypeEnum imgExt, bool isthumbnail, int aid, string uploadPath, string itype, bool size1M = true)
{
ResultInfo ri = new ResultInfo();
string fileExt = Path.GetExtension(upfile.FileName);//文件扩展名
//检查文件扩展名是否合法
if (!CheckFileExt(fileExt))
{
ri.Msg = $"不允许上传{fileExt}类型的文件！";
return(ri);
}
//检查文件大小是否合法
//if (size1M)
//{
// int maxlength = Convert.ToInt32(ConfigHelper.AppSettings("UploadFileMax"));//最大上传大小/M
// if (!UserBaseBLL.Instance.IsMaster && upfile.ContentLength > maxlength * 1024 * 1024)
// {
// ri.Msg = "上传文件最大只能是{0}M".FormatWith(maxlength);
// return ri;
// }
//}
int fileSize = upfile.ContentLength; //获取文件的大小，以字节为单位
string fileName = Path.GetFileNameWithoutExtension(upfile.FileName); //文件名
string newFileName = "{0}{1}".FormatWith(DateTimeHelper.GetToday(9), fileExt.Contains(ImgExtTypeEnum.gif.ToString()) ? fileExt : "." + imgExt.ToString()); //随机生成新的文件名
string upLoadPath = GetUploadPath(uploadPath, aid.ToString()); //上传目录的相对路径
string fullUploadPath = UploadHelper.GetMapPath(upLoadPath); //上传目录的物理路径
string newFilePath = upLoadPath + newFileName; //上传后的路径
//检查上传的物理路径是否存在，不存在则创建
if (!Directory.Exists(fullUploadPath))
{
Directory.CreateDirectory(fullUploadPath);
}
//保存文件
upfile.SaveAs(fullUploadPath + newFileName);
//生成缩略图
string thumbFullName = string.Empty;
if (isthumbnail)
{
using (Image image = Image.FromStream(upfile.InputStream))
{
string thumbPath = GetUploadPath(GetUploadPath(uploadPath, "thumb"), aid.ToString());
string thumbFullPath = UploadHelper.GetMapPath(thumbPath);
if (!Directory.Exists(thumbFullPath))
{
Directory.CreateDirectory(thumbFullPath);
}
thumbFullName = thumbPath + "thumb_{0}".FormatWith(newFileName);
GetThumbnail(image, 100, 100).Save(Server.MapPath(thumbFullName));
}
}
//处理完毕，返回JOSN格式的文件信息
ri.Ok = true;
ri.Msg = "上传文件成功！";
ri.Url = newFilePath;
ri.Data = thumbFullName;
return(ri);
//return new { status = 1, msg = "上传文件成功！", path = newFilePath, thumbName = thumbFullName, size = fileSize, ext = fileExt };
}
