form表单数据封装成json格式并提交给服务器

1、jsp代码，form表单：

 <form action="#" id="costForm">
 <input type="hidden" id="userId" name="userId"/>
 <div id="COST">
     <img src='<%=path %>/cvc/center/images/close.png' class="close" style="width:34px;position:absolute;right:0px;top:0px;"></img>
     <h2 style="font-weight: bolder;font-size: 14px;">更改该注册订单的收费状态</h2>
     <ul>
     <li>
         <label for="report">
             　是否已报到：
         </label>
         <input type="radio" id="baodao1" name="baodao" value="1"/>是
         <input type="radio" id="baodao0" name="baodao" value="0"/>否
     </li>

     <li>
         <label for="name">
             　　姓　　名：
         </label>
         <span id="costName"></span>
     </li>

     <li>
         <label for="type">
             　　注册类型：
         </label>
         <span id="costType"></span>
     </li>
     <li>
         <label for="sure_fee">
             　在线支付手续费：
         </label>
        <span id="costType">0</span>
     </li>
     <li>
         <label for="sure_fee">
             　 应收费金额：
         </label>
         <span id="price"></span>
     </li>

     <li>
         <label for="already_fee">
            　  已收费金额：
         </label>
         <input type="text" id="pay_" name="pay"/>
     </li>

     <li>
         <label for="owe">
             　　欠　　款：
         </label>
         <span id="qianPay"></span>
     </li>

     <li>
         <label for="fee_type">
             　　付款方式：
         </label>
         <input type="radio" id="payType1" name="payType" value="3"/>银行
         <input type="radio" id="payType2" name="payType" value="4"/>邮局
         <input type="radio" id="payType3" name="payType" value="5"/>现金
         <input type="radio" id="payType4" name="payType" value="2"/>在线支付
     </li>

     <li>
         <label for="fee_evidence">
                    是否收到汇款凭证：
         </label>
         <input type="radio" id="isReceiveProof1" name="isReceiveProof" value="1"/>是
         <input type="radio" id="isReceiveProof0" name="isReceiveProof" value="0"/>否
     </li>

     <li>
         <label for="fa_piao">
             　　发票抬头：
         </label>
         <span id="billTitle"></span>
     </li>

      <li>
         <label for="fa_piao">
             　　发票编号：
         </label>
           <input type="text" id="billCode" name="billCode"/>
     </li>

     <li>
         <label for="check_evidence">
             是否已开发票：
         </label>
         <input type="radio" id="isBill1" name="isBill" value="1"/>是
         <input type="radio" id="isBill0" name="isBill" value="0"/>否
     </li>

     <li>
         <label for="get_evidence">
             是否已领发票：
         </label>
         <input type="radio" id="isDrawBill1" name="isDrawBill" value="1"/>是
         <input type="radio" id="isDrawBill0" name="isDrawBill" value="0"/>否
     </li>

     <li>

         <label for="date">
             已发确认日期：
         </label>
         <span id="confirmDate"></span>
         <!-- <input type="text" id="confirmDate" name="confirmDate"/>  -->
         <!--  <input id="confirmDate" name="confirmDate" class="text" type="text" onClick="WdatePicker()"/>  -->
     </li>
     <li>
         <label for="check_letter">是否已发确认函：</label>
         <span id="isConfirmInvitation"></span>
     </li>
      <li>
         <label for="fa_piao">在线支付状态：</label>
         <span id="payString"></span>
     </li>
     </ul>
     <div class="fee_opr">
         <button type="button" class="fee_sure" style="border: none;background: #003260;color: #ffffff;padding: 3px 30px;margin-left: 10px;border-radius: 0px;">确定</button>
         <button type="button" class="fee_cancel" style="border: none;background: #003260;color: #ffffff;padding: 3px 30px;margin-left: 10px;border-radius: 0px;">关闭</button>
     </div>
 </div>
 </form>

2、js代码：

  $(".fee_sure").click(function () {
         var dataObj = $("#costForm").serialize();
         var payType = $('input[name="payType"]:checked').val();
         if(payType == undefined){
             alert("请选择付款类型");
             return ;
         }else{
             $.ajax({
                 url:"/webCenter.do?method=saveUserMessage",
                 type: "post",
                 dataType:"json",
                 data:dataObj,
                 cache:false,
                 ifModified:true,
                 success:function(json){
                         if(json.flag == 1){
                             alert("1234");
                         }
                 }
             })
         }
     })

3、后台action处理：

     @RequestMapping(params ="method=saveUserMessage",method=RequestMethod.POST)     //导入发言
                     public void saveUserMessage(int userId,HttpServletRequest request,HttpServletResponse response){
                         try {
                             HttpSession session  = this.getSession(request);
                             Adminuser adminUser = session.getAttribute("centerAdminUser") == null?null:(Adminuser) session.getAttribute("centerAdminUser");
                             if(adminUser == null){
                                 try {
                                     response.sendRedirect(request.getContextPath()+"/center/index.jsp");
                                 } catch (Exception e) {
                                     e.printStackTrace();
                                 }
                             }else{
                                 String billNumber =  request.getParameter("billCode")==null?"":request.getParameter("billCode");
                                 String isBaodao =  request.getParameter("baodao")==null?"0":request.getParameter("baodao");
                                 String haspay =  request.getParameter("pay")==null?"0":request.getParameter("pay");
                                 String payType =  request.getParameter("payType")==null?"0":request.getParameter("payType");
                                 String isFkpz =  request.getParameter("isReceiveProof")==null?"0":request.getParameter("isReceiveProof");
                                 String isYkfp =  request.getParameter("isBill")==null?"0":request.getParameter("isBill");
                                 String isYlfp =  request.getParameter("isDrawBill")==null?"0":request.getParameter("isDrawBill");
                                 JSONObject jsonObject = new JSONObject();
                                 //AdminuserConferences adminuserConferences = webService.getAdminuserConferences(adminUser.getAdminuserId());
                                 UserInfo userInfo = webService.getUserInfoById(userId);
                                 if(userInfo!=null)
                                 {
                                     jsonObject.accumulate("flag",1);
                                     ChcRegUser chcRegUser = webService.getChcRegUser(userId);
                                     if(chcRegUser!=null)
                                     {
                                         chcRegUser.setHasPay(Integer.parseInt(haspay));
                                         chcRegUser.setPayType(Integer.parseInt(payType));
                                         if(chcRegUser.getHasPay()-chcRegUser.getPay()==0)
                                         {
                                             chcRegUser.setStateType(1);
                                         }
                                         webService.saveObject(chcRegUser);
                                         userInfo.setIsBaodao(Integer.parseInt(isBaodao));
                                         userInfo.setIsFkpz(Integer.parseInt(isFkpz));
                                         userInfo.setBillNumber(billNumber);
                                         userInfo.setIsYlfp(Integer.parseInt(isYlfp));
                                         userInfo.setIsYkfp(Integer.parseInt(isYkfp));
                                         webService.saveObject(userInfo);
                                         jsonObject.accumulate("pay", chcRegUser.getPay());
                                         jsonObject.accumulate("haspay", chcRegUser.getHasPay());
                                     }
                                 }else {
                                     jsonObject.accumulate("flag",0);
                                 }
                                 writeJson(response, jsonObject.toString());
                             }
                         } catch (Exception e) {
                             e.printStackTrace();
                         }
                     }