C#上传文件

if (myFile != null) { string fileContentType = myFile.PostedFile.ContentType; string fileExtens = Path.GetExtension(Path.GetFileName(myFile.PostedFile.FileName)).ToLower(); //获取文件名 long fileLength = myFile.PostedFile.ContentLength; if (fileLength < Consts.ImgLength) { try { if (fileExtens == ".jpg" | fileExtens == ".jpeg" || fileExtens == ".gif" || fileExtens == ".bmp") { string fileName = string.Format("{0:yyyyMMddHHmmssffff}", DateTime.Now) + fileExtens; //存储文件名 //保存文件 myFile.SaveAs(Server.MapPath(Consts.CmyViewPath) + fileName); mCmy.CmyImg = fileName; } } catch (Exception ex) { Message.AlertMsg(this, "保存文件出错,原因是:" + ex.Message); return; } } else { Message.AlertMsg(this, "文件大小超过300KB"); return; } } else { Message.AlertMsg(this, "请上传文件"); return; }