html file 文件批量上传 以及碰到的一些问题提

//javascript 代码   
 $("#submite").click(function (evt) {
 
        var arrayTr = $("#datatables").find("tbody").find("tr");
        $(arrayTr).each(function (index, value) {
            var data = new FormData();
            $(value).find("input[type='file']").each(function (i, file) {
                if (file.files[0] != undefined) {
                    data.append(file.files[0].name + i, file.files[0]);
                }
            });
 
            data.append("modelKey", JSON.stringify(datas.data[index]))
 
            //apis.certificate.httpRequestPost(apis.certificate.UploadCertificate, data, function () { alert("success") });
 
            $.ajax({
                url: apis.certificate.UploadCertificate,
                type: "POST",
                data: data,
               contentType: false,
                processData: false,
                success: function (result) { alert(result); },
                error: function (err) {
                    alert(err.statusText)
                }
            });
 
        });
 
    });

　　提示无法打开关闭的文件流时候 配置

<compilation debug="true" targetFramework="4.5" />
<httpRuntime maxRequestLength="1048576" targetFramework="4.5" requestLengthDiskThreshold="1048576" useFullyQualifiedRedirectUrl="true" executionTimeout="3600" />
</system.web>

后台代码   string json =HttpContext.Current.Request.Form["modelKey"];

            modeldo m = Newtonsoft.Json.JsonConvert.DeserializeObject<modeldo>(json);
            HttpFileCollection _file = System.Web.HttpContext.Current.Request.Files;
            Tuple<modeldo, HttpFileCollection> model = new Tuple<modeldo, HttpFileCollection>(m, _file);
            ThreadPool.QueueUserWorkItem(threadDo, model); //这里用异步多线程可能会存在问题 导致后续文件无法完全上传   可以直接调用

           
        }
        public void threadDo(object o)
        {
            HttpFileCollection _file = (HttpFileCollection)(((Tuple<modeldo, HttpFileCollection>)o).Item2);
            modeldo m = (modeldo)((Tuple<modeldo, HttpFileCollection>)o).Item1;
            for (int i = 0; i < _file.Count; i++)
            {
                int CatagoryId = Convert.ToInt32(_file.AllKeys[i].Substring(_file.AllKeys[i].Length - 1));
                switch (CatagoryId)
                {
                    case 0:
                        m.CurrentCertificatePutAddress = UploadFile(_file[i]);
                        m.CurrentCertificatePutAddressName = _file[i].FileName;
                        break;
                    case 1:
                        m.CurrentCostSettleRule = UploadFile(_file[i]);
                        m.CurrentCostSettleRuleName = _file[i].FileName;
                        break;
                    case 2:
                        m.CurrentCostSettleCertificate = UploadFile(_file[i]);
                        m.CurrentCostSettleCertificateName = _file[i].FileName;
                        break;
                    case 3:
                        m.CurrentContract = UploadFile(_file[i]);
                        m.CurrentContractName = _file[i].FileName;
                        break;
                }
            }
            ConsumptionCertificatedetail certificateModel = new ConsumptionCertificatedetail();
            certificateModel.CertificateNumber = m.CertificateNumber;//2017-06-01 - 2017-06-30
            certificateModel.CurrentCertificateStart = m.CurrentCertificateSection.Split('~')[0];
            certificateModel.CurrentCertificateEnd = m.CurrentCertificateSection.Split('~')[1];
            certificateModel.CurrentContract = m.CurrentContract;
            certificateModel.CurrentContractName = m.CurrentContractName;
            certificateModel.CurrentCertificatePutTxt = m.CurrentCertificatePutTxt;
            certificateModel.CurrentCertificatePutAddressName = m.CurrentCertificatePutAddressName;
            certificateModel.CurrentCertificatePutAddress = m.CurrentCertificatePutAddress;
            certificateModel.CurrentCostSettleCertificate = m.CurrentCostSettleCertificate;
            certificateModel.CurrentCostSettleCertificateName = m.CurrentCostSettleCertificateName;
            certificateModel.CurrentCostSettleCertificateTxt = m.CurrentCostSettleCertificateTxt;
            certificateModel.CurrentCostSettleRule = m.CurrentCostSettleRule;
            certificateModel.CurrentCostSettleRuleName = m.CurrentCostSettleRuleName;
            certificateModel.CurrentCostSettleRuleTxt = m.CurrentCostSettleRuleTxt;
            certificateModel.CurrentPutUrl = m.CurrentPutUrl;
            bus.AddcertificateDetail(certificateModel);
            //long size = _file[0].ContentLength;
            ////文件类型
            //string type = _file[0].ContentType;
            ////文件名
            //string name = _file[0].FileName;
            ////文件格式
            //string _tp = System.IO.Path.GetExtension(name);
        }
        public string UploadFile(HttpPostedFile Files)
        {
            int FileLenth = Files.ContentLength;
            byte[] buffur = new byte[FileLenth];
            using (BinaryReader br = new BinaryReader(Files.InputStream, Encoding.UTF8))
            {
                buffur = br.ReadBytes(FileLenth);
                br.Close();
                br.Dispose();
            }
            DFSClient client = new DFSClient();
           string url= client.UploadFile(buffur, System.IO.Path.GetExtension(Files.FileName).Substring(1, System.IO.Path.GetExtension(Files.FileName).Length-1));
           return url;
        }
    }
    public class modeldo : ConsumptionCertificatedetail
    {
        public string CurrentCertificateSection { get; set; }
    }
}