html5异步单图片多图片上传两种实现方式 后台.net mvc接收

Asp.net mvc上传多张图片后台存储

前台页面通过<file name="img">标签数组上传图片，后台根据Request.Files["img"]来接收前台上传的图片。
 1 System.Web.HttpFileCollection files = System.Web.HttpContext.Current.Request.Files;
             if (files.Count == )
                 return false;
             for (int i = ; i < files.AllKeys.Count(); i++)
             {
                 if (files.AllKeys[i] != "img")
                 {
                     if (files[i].FileName.Length > )
                     {
                         System.Web.HttpPostedFile postedfile = files[i];
                         string filePath = "";
                         var ext = Path.GetExtension(postedfile.FileName);
                         var fileName = DateTime.Now.Ticks.ToString() + ext;
                         // 组合文件存储的相对路径
                         filePath = "/Upload/images/" + fileName;
                         // 将相对路径转换成物理路径
                         var path = Server.MapPath(filePath);
                         postedfile.SaveAs(path);
                         string fex = Path.GetExtension(postedfile.FileName);
                         //存储产品轮播图信息
                         ProductCarousel model = new ProductCarousel();
                         model.ProductID = productID;
                         model.PicSlider = filePath;
                         db.ProductCarousels.Add(model);
                         db.SaveChanges();
                     }
                 }

             }

HBuilder的Uploader插件上传图片到服务器

 public JsonResult ApplayCertification()
         {
             try
             {
                 var para = Request.Files.Keys;
                 foreach (var item in para)
                 {
                     Log.Debug("所有参数：" + item.ToString());
                 }
                 //接收客户端上传的文件
                 var FileCollect = HttpContext.Request.Files;

                 var user = authMag.GetUser(Token);
                 var certification = db.UserCertifications.SingleOrDefault(p => p.UserID == user.ID);

                 //遍历文件集合
                 if (FileCollect.Count > )
                 {
                     foreach (string key in FileCollect)
                     {
                         HttpPostedFileBase FileSave = FileCollect[key];//用key获取单个文件对象HttpPostedFile
                         //保存上传的图片
                         string fileName = SaveImg(FileSave, FileCollect.Get(key).FileName, user.ID);
                         if (key == "OwerImg")
                         {
                             certification.OwerImg = fileName;
                         }
                         if (key == "OwerCardImg")
                         {
                             certification.OwerCardImg = fileName;
                         }
                         if (key == "OwerLicenceImg")
                         {
                             certification.OwerLicenceImg = fileName;
                         }
                         if (key == "OwerDrivingLicenceImg")
                         {
                             certification.OwerDrivingLicenceImg = fileName;
                         }
                         if (key == "CarImg")
                         {
                             certification.CarImg = fileName;
                         }
                         if (key == "AssuranceImg")
                         {
                             certification.AssuranceImg = fileName;
                         }
                     }
                 }
                 certification.AuditingStatus = (byte)AuditingStatus.AuditPass;
                 db.SaveChanges();
                 return Json(new
                 {
                     state = true,
                     msg = "申请成功",
                 },
                 JsonRequestBehavior.AllowGet
                 );
             }
             catch (Exception ex)
             {
                 Log.Error("ApplayCertification Error", ex);
                 return Json(new
                 {
                     state = false,
                 },
                JsonRequestBehavior.AllowGet
                );
             }
         }

存储上传图片方法

  private string SaveImg(HttpPostedFileBase file, string fileName, int userID)
         {
             //图片路径：Upload+当前日期+当前userID
             string filePath = "/Upload/"+DateTime.Now.ToString("yyyy-MM-dd")+"/"+userID.ToString()+"/";
             if (!Directory.Exists(Server.MapPath(filePath)))
             {
                 Directory.CreateDirectory(Server.MapPath(filePath));
             }
             string returnPath = filePath + DateTime.Now.ToString("yyyyMMddhhmmssffff") + fileName;
             string absoluteFilePath = Server.MapPath(filePath) + DateTime.Now.ToString("yyyyMMddhhmmssffff") + fileName;
             file.SaveAs(absoluteFilePath);
             return returnPath;

         }