easyui SWFUpload

业务背景：实现一个用药人的增加功能，用药人信息中包含附件。如题所示，主要讨论easyui上传的实现。
jsp页面代码（弹出框），一个简单的增加页面

   div id=addMedicationDlg class=easyui-window closed=true title= iconCls=icon-add style=width350px; height390px;text-aligncenter; background #fafafa;
           div class=easyui-layout fit=true
               div region=center border=false style=background#fff;border1px solid #ccc;padding-left 20px;
                   input type=hidden id=mid name=mid
                   form id=addMedicationForm  method=POST
                          input type=hidden id=sex
                       table border=0 class=queryTable  style=margin-bottom 0px

                          tr
                              td class=queryTitle附件：td
                              td class=queryContent
                                     input class=inputText type=text id=urlkeywords!-- 放入的是附件路径--
                                     input  type=hidden id=goodsNo  name=goodsNo !-- 附件列表 --
                                   input type=hidden class=inputText id=swfText
                                   span id=keyWordImportBtnspan!--上传按钮--
                             td
                             td
                                    <!--显示进度条-->
                                  div id=fsUploadProgressdiv
                                  div id=divStatus style=display none;div
                                  input id=btnCancel type=buttondisabled=disabled style=display none
                              td
                          tr
                      table
                    table border=0 class=queryTable  style=margin-bottom 0px  id=fileIdTlb
                          tbody
                           tbody
                    table
                  form
              div
              div region=south border=false style=text-aligncenter;height30px;line-height30px;
                  a class=easyui-linkbutton iconCls=icon-ok href=javascriptvoid(0) onclick=doPostData()确定a
                  a class=easyui-linkbutton iconCls=icon-cancel href=javascriptvoid(0) onclick=cancelPostData('addMedicationDlg')取消a
              div
          div
  div

js文件代码

 /**
     * 打开修改&增加用药人窗口
     */
    function doModifyMedication (mid){
       //弹出修改&增加用药人窗口
      $('#addMedicationDlg').window({
           title  '修改用药人',
           iconCls  'icon-edit',
           width750,
           height550,
           left250,
           modal  true,
           shadow  true,
           collapsible  false,
           minimizable  false,
           maximizable  false
       });
       $(#addMedicationDlg).show();
       $('#addMedicationDlg').window('move',{top20});
       $('#addMedicationDlg').window('open');
        //这一步很关键，初始化上传操作
        initSWFUpload({
               upload_url appPath + pagequeryMedicationkeyWordImport+generateMixed(6),
               post_params{},
               button_placeholder_id keyWordImportBtn,
               upload_start_handler  uploadStartFn,
               upload_success_handler  importOk,
               file_types  .png;.jpg;.gif,
               debugfalse,
               custom_settings  {
                   progressTarget  fsUploadProgress,
                   cancelButtonId  btnCancel
               }
        });
   }
   /**
     *保存提交
     */
   function doPostData(){
             //序列化表单
           var userinfo = $('#addMedicationForm').serialize();
           doAjax({
               urlappPath + 'pagequeryMedicationaddMedication'+ memberId,
               type'POST',
               datauserinfo,
               successfunction(data){
                    if(data ==true){
                        $.messager.alert('提示信息','保存成功','info');
                       $('#selectMedicineManDlg').window('close');
                       cancelPostData('addMedicationDlg');
                       lookMedication(memberId);
                  }else{
                      $.messager.alert('提示信息','抱歉，操作未能完成，'+data,'error');
                  }
              },
              errorfunction(XMLHttpRequest, textStatus, errorThrown){
                  $.messager.alert('提示信息','抱歉，操作未能完成，'+textStatus,'error');
              }
          });
  }
  /**
    *取消提交
    *@param dlg
    */
  function cancelPostData(dlg){
      $('#'+dlg).window('close');
  }

后台java代码

      /**
      * 保存文件（在文件初始化的时候执行）
      *
      * @param request
      * @param response
      * @param uploadFile
      * @throws Exception
      */
     @RequestMapping(value = "/keyWordImport")
     public Object keyWordImport(HttpServletRequest request,
             HttpServletResponse response,
             @RequestParam("uploadFile") MultipartFile f) throws Exception {
         request.setCharacterEncoding("utf-8");
         response.setCharacterEncoding("utf-8");
         HashMap<String, Object> map = new HashMap<String, Object>();
         String type = "" ;
         String splitKey = "";

         //---设置字符集
         try {
             request.setCharacterEncoding("utf-8");
         } catch (Exception e) {
             e.printStackTrace();
         }
         response.setCharacterEncoding("utf-8");

         if (null != request.getParameter("splitKey")){
              splitKey = request.getParameter("splitKey");
         }

         //---获取文件名称、文件后缀名称以及生成新名称
         String oldFileName = f.getOriginalFilename();
         if(null!=oldFileName && oldFileName.contains(".")){
             type = oldFileName.substring(oldFileName.lastIndexOf(".")).toLowerCase();
         }
         String newFileName =oldFileName.substring(0,oldFileName.lastIndexOf("."))+String.valueOf(System.currentTimeMillis())+type;
         try {
             // ---获取文件保存目录名称

             String saveFolder = request.getSession().getServletContext()
                     .getRealPath("upload")
                     + "/" +  "otcFolder";

             String  newFileNamePath = "/upload/otcFolder/"+ newFileName;
             map.put("newFileName", newFileNamePath);

             // ---上传
             Map<String, Object> res = uploadService.doUpload(saveFolder,
                     f.getBytes(), newFileName, splitKey, "otcFolder");
             // ---返回值
             if (0 == (Integer) res.get("error")) {
                 request.setAttribute("res", "success");
                 response.getWriter().write(org.json.simple.JSONObject.toJSONString(map));
             } else {
                 request.setAttribute("res",
                         "err : " + (String) res.get("message"));
             }
         } catch (Exception e) {
             request.setAttribute("res", "err : " + e.getMessage());
             logger.error("upload failed in action " + e.getMessage());
     }
            return null;
   }
          //保存用药人新增数据
     @RequestMapping(value="/addMedication/{memberId}")
     @ResponseBody
     public  String addMedication (HttpServletRequest request ,@PathVariable Long memberId,Medication medication) throws Exception {
         String fileList = medication.getGoodsNo();
         String temps [] =fileList.split(",");
         List<MedicationMemberFile> list =new ArrayList<MedicationMemberFile>();
         for (int  i = 0 ;i<temps.length ; i++){
             MedicationMemberFile medicationMemberFile = new MedicationMemberFile();
             if (temps[i].trim().length() >0 || temps[i].trim() != null){
                 medicationMemberFile.setFilePath(temps[i]);
                 list.add(medicationMemberFile);
             }
         }
          medication.setMedicationMemberFile(list);
          medication.setMemberId(memberId);
         String  result ="";
         String resultDataRecord = SOAJsonClient.sendMsgToOtc(OtcJsonCodeRelation.JsonAssignedDetailsTasksService_setAddMedication,JSON.toJSONString(medication) );
         JSONObject objectRecord = JSONObject.fromObject(resultDataRecord);
          String  objectstate=String.valueOf(objectRecord.get("state"));
          if(objectstate.trim().length() >0 &&  objectstate.equals("0")){
              result ="true";
          }
          return result;
     }