页面批量新增

来源：互联网发布：被猎头找到知乎编辑：程序博客网时间：2024/06/05 08:00

jsp:

   <c:forEach items="${studentList}" var="v" varStatus="vs">
                    <tr>
                       <td class='center' style="width: 30px;">
                           <label><input type='checkbox' name='ids' /><span class="lbl"></span></label>
                       </td>
                       <td class='center' style="width: 30px;">${vs.index+1}</td>

                       <td>${v.name}</td>
                       <input type="hidden" name='name${ v.studentId}' id='name' value="${v.id }">
                       <input type="hidden" name='studentId${ v.studentId}' id='studentId' value="${v.studentId }">

                       <td ><select name="status${ v.studentId}" id="status" data-placeholder="请选择状态" style="vertical-align:top;width: 100px;">
                               <option value="1" <c:if test="${pd.status == '1'}">selected="selected"</c:if>>正常出勤</option>
                               <option value="2" <c:if test="${pd.status == '2'}">selected="selected"</c:if>>早退</option>
                               <option value='3' <c:if test="${pd.status == '3'}">selected="selected"</c:if>>迟到</option>
                               <option value='4' <c:if test="${pd.status == '4'}">selected="selected"</c:if>>未到</option>
                               <option value='5' <c:if test="${pd.status == '5'}">selected="selected"</c:if>>请假</option>
                           </select>
                       </td>
                       <td><select name="number${ v.studentId}" id="number" data-placeholder="请选择考勤次数" style="vertical-align:top;width: 100px;">
                               <option value="1" <c:if test="${pd.number == '1'}">selected="selected"</c:if>>1次</option>
                               <option value="2" <c:if test="${pd.number == '2'}">selected="selected"</c:if>>2次</option>
                               <option value='3' <c:if test="${pd.number == '3'}">selected="selected"</c:if>>3次</option>

                           </select>
                       </td>
                   </tr>
               </c:forEach>

因为studentId是唯一的，这样避免数据的覆盖

java :

        /*
   * / 批量新增
   */
   @RequestMapping(value = "saveLast")
   public ModelAndView saveLast(HttpServletRequest request) {
       String classid=request.getParameter("classId");
       ModelAndView mv = this.getModelAndView();
       PageData pd = new PageData();//封装好的
       pd = this.getPageData();//获得前台的值
       try {
           List<String> list = new ArrayList<>();
           Iterator<String> iter = pd.keySet().iterator();
           while (iter.hasNext()) {

//获得键key

                String key = iter.next();
               list.add(key);
           }

           Map<String, String> map = new HashMap<>();
           for (String aa : list) {

//获得其中一类key和value name=“123123123” name=“123123122”

                if (aa.substring(0, 4).equals("name")) {
                   map.put(aa.substring(4), "name");
               }
           }

           for(Map.Entry<String, String> m: map.entrySet()){
               String key = m.getKey();
               PageData pData = new PageData();
                //根据key获得value，一条一条插入
               pData.put("id",this.get32UUID());
               pData.put("name",pd.get("name"+key));
               pData.put("studentId",pd.get("studentId"+key));
               pData.put("datatime",datatime);
               pData.put("number",pd.get("number"+key));
               pData.put("status",pd.get("status"+key));
               attendanceService.save(pData);
           }

       } catch (Exception e) {
           // TODO: handle exception
           logger.error(e);
       }

       mv.addObject("msg", "success");
       mv.setViewName("save_result");
       return mv;
   }

前台值是通过表单提交传到后台的

阅读全文

0 0