一次上传多个文件

1、前台代码

    <div class="contain_bj" style="background: none; border: 0px; padding: 0px; width: 980px;">
        <!---采购合同-->
        @using (Html.BeginForm("AddContractSubmit", "OrderDraft", FormMethod.Post, new { enctype = "multipart/form-data", @id = "ContractForm" }))
        {
            <table id="table_measure" border="0" cellspacing="0" cellpadding="0" width="100%"
                class="contain_form contain_form_bd">
                <tr>
                    <th colspan="6">
                        <h2>
                            合同模板</h2>
                    </th>
                </tr>
                <tr class="class_pt">
                    <td align="center" width="20%">
                        采购合同模板
                    </td>
                    <td colspan="5" align="left" width="80%" style="width: 400px">
                        <input type="file" name="filetemplate" style="width: 300px" />
                    </td>
                </tr>
                <tr class="class_pt">
                    <td align="center" width="20%">
                        其他附件<img title="添加" alt="" src="../../Content/images/jia.gif" style="cursor: pointer;"
                            onclick="AddFuJian()" />
                    </td>
                    <td colspan="5">
                        <ul style="width: 600px">
                            <li>
                                <input type="file" name="fileother" style="width: 300px" />
                                <img title="删除附件" src="../../Content/images/jian.gif" style="cursor: pointer;" onclick="DetFuJian(this)" />
                            </li>
                            <li>
                                <input type="file" name="fileother" style="width: 300px" />
                                <img title="删除附件" src="../../Content/images/jian.gif" style="cursor: pointer;" onclick="DetFuJian(this)" />
                            </li>
                            <li>
                                <input type="file" name="fileother" style="width: 300px" />
                                <img title="删除附件" src="../../Content/images/jian.gif" style="cursor: pointer;" onclick="DetFuJian(this)" />
                            </li>
                            <li id="tr_mas"></li>
                        </ul>
                    </td>
                </tr>
            </table>
            <div class="form_button">
                <a>上一步</a> <a onclick="SaveNext()">下一步</a>
            </div>

        }
    </div>

2、后台接收

        [HttpPost]
        public ActionResult AddContractSubmit(HttpPostedFileBase filebase)
        {

            if (Request.Files.Count == 0)
            {
                return View("AddContract");
            }

            List<AttachFileView> listFile = new List<AttachFileView>();

            for (int i = 0; i < Request.Files.Count; i++)
            {
                AttachFileView fileView = new AttachFileView();

                var file = Request.Files[i];
                if (file.ContentLength == 0)
                {
                    continue;
                }
                else
                {
                    //判断上传附件的类型
                    if (Request.Files.AllKeys[i] == "filetemplate")
                        fileView.FILETYPE = "TEMPLATE";
                    else
                        fileView.FILETYPE = "OTHER";

                    fileView.FILE = file;
                    fileView.FILEPATH = Server.MapPath(Request.ApplicationPath) + "/FileUpload/";
                }
                listFile.Add(fileView);

            }

            string ordercode = "ORDER20130803FH";//】【】【】【】【】【】【】


            OperationResults message = orderBLL.SaveFile(listFile, ordercode);
            //上传、数据库保存成功
            if (message.Code == 1)
            {
                return View();
            }
            else
            {
                return View("AddContract");

            }

        }

3、业务处理

        public OperationResults SaveFile(List<AttachFileView> listFile, string ordercode)
        {
            List<AttachFileView> listAttachFile = new List<AttachFileView>();

            string type = "ORDER"; //单据类型
            string date = DateTime.Now.ToString("yyyyMMdd");

            //遍历集合，保存上载文件
            foreach (var item in listFile)
            {

                //不包含扩展名的文件名
                string noExFileName = Path.GetFileNameWithoutExtension(item.FILE.FileName);
                //文件扩展名
                string fileEx = Path.GetExtension(item.FILE.FileName);
                //保存时的文件名
                Guid guid = Guid.NewGuid();
                string fileName = guid.ToString() + noExFileName + date + fileEx;
                //导入服务器的地址路径
                string dir = item.FILEPATH  + type + "/" + date + "/";
                //如果要保存的目录不存在
                if (!Directory.Exists(dir))
                {
                    Directory.CreateDirectory(dir);  //创建文件所在目录
                }
                string savePath = Path.Combine(dir, fileName);

                //保存上载文件
                item.FILE.SaveAs(savePath);

                AttachFileView fileView = new AttachFileView();
                fileView.UID = guid;
                fileView.FILETYPE = item.FILETYPE;
                fileView.FILENAME = noExFileName;
                fileView.FILEPATH = savePath;
                listAttachFile.Add(fileView);
            }

            //向数据库中保存上传附件信息
            List<TS_ATTACHFILE> listTs = new List<TS_ATTACHFILE>();
            foreach (var item in listAttachFile)
            {
                item.FORMCODE = type;
                item.BUSINESSCODE = ordercode;
                item.LASTTIME = DateTime.Now;

                TS_ATTACHFILE attachfile = DataModelHepler.GetDataModel<AttachFileView, TS_ATTACHFILE>(item);

                listTs.Add(attachfile);
            }
            OperationResults message = new OperationResults();
            message.ResultCount = dal.insertBatch<TS_ATTACHFILE>(listTs);

            if(message.ResultCount == 0)
            {
                message.Code = 0;
                message.Message = "保存失败！";
            }
            else
            {
                message.Code = 1;
                message.Message = "保存成功！";
            }

            return message;

        }