页面刷新一就行增一条记录的有关问题

页面刷新一就行增一条记录的问题
说明：我查询车辆申请信息，将申请信息显示在页面每刷新一次，页面上就多一条记录，数据库里面也会相应的多一条记录

1.doPost：

Java code

    String cNumber = request.getParameter("cnumber");        String cID = request.getParameter("cid");        int id = Integer.parseInt(cID);        String aName = request.getParameter("name");        String aDepart = request.getParameter("dept");        String aReason = request.getParameter("reason");        String aTime = request.getParameter("date");        String status = "1";        String path = null;        List<Record> list=null;        boolean uFlag,iFlag;        try        {                           //此方法为申请车辆的方法，一申请就改变车辆的当前状态            uFlag = CarsFactory.getCarsDAOInstances().UpdateStatus(id, status);//此方法将申请记录插入到数据库            iFlag=CarsFactory.getRecordDAOInstances().doInsertResord(cNumber, aName, aDepart, aReason, aTime);//此方法获取车牌号码对应的申请记录            list=CarsFactory.getRecordDAOInstances().querryByRid(cNumber);                        if (uFlag&iFlag)            {                //申请成功将申请的信息发送给浏览器                request.setAttribute("redList", list);                path = "cars/querryapp.jsp";            } else            {                path = "errors/Error.jsp";            }            request.getRequestDispatcher(path).forward(request, response);        } catch (Exception e)        {            System.out.print(e);        }

HTML code

<jason:forEach items="${redList}" var="record">                        <tr>                            <td height="25" align="center">                            ${record.rid}                            </td>                            <td align="center">                                ${record.cno}                            </td>                            <td align="center">                                ${record.owner }                            </td>                            <td align="center">                                ${record.departName }                            </td>                            <td align="center">                                ${record.reason }                            </td>                            <td align="center">                                ${record.date }                            </td>                        </tr>                    </jason:forEach>

Java code

//此方法将申请记录插入到数据库            iFlag=CarsFactory.getRecordDAOInstances().doInsertResord(cNumber, aName, aDepart, aReason, aTime);
[解决办法]
每次刷新页面，就会向服务器发送一次请求，就会执行一次dopost方法，就会执行一次插入操作。。。so。