The original code is this: <div class='control-group'> <label class='control-label' for='inputSelect'>Affiliated unit</label> <div class='controls'> <select id='inputSelect' name="acCpname" onchange="updateAc()"> <c:forEach items="${list }" var="list"> <option value="${list.cpname}">${list.cpname }</option> </c:forEach> </select> </div> </div> <div class='control-group'> <label class='control-label'>Required stamp</label> <div class='controls' id="updateac" style="height: 40px"> <c:if test="${empty sealtables}"> <label class='radio inline'> No stamp available, please go to apply for a stamp</label> </c:if> <c:if test="${not empty sealtables }"> <c:forEach items="${sealtables}" var="sealtable" varStatus="status"> <label class='radio inline'> <input type='checkbox' name="selectSealType" value='${sealtable.sealtype}' /> ${sealtable.sealtype} </label> </c:forEach> </c:if> </div> </div> Effect screenshots: To achieve the effect, click the drop-down list in the red marked part of the picture, and the value of the check box below will change with the change of the drop-down list. First, let me talk about the solution: add an onchange event to the drop-down list, then submit it to the controller asynchronously through ajax, perform a database query, and then return to ModelAndView. The view set by ModelAndView is a new jsp page, and the code embedded in the jsp page is the div code to be changed. Add an onchange event to the drop-down list: Add ajax asynchronous refresh event for time: The returned pressed surface is loaded directly in the div <script> function updateAc() { $.ajax({ type : "POST", url : '${pageContext.request.contextPath}/updateAc.action', data : { company : $('#inputSelect').val() }, dataType : "html", cache : false, async : true, contentType : "application/x-www-form-urlencoded; charset=utf-8", success : function(data) { $("#updateac").html(data); }, error : function() { } }); } </script> Submit to updateAc.action: According to the value selected in the drop-down list, the corresponding information of the value is searched from the database and returned, and then the comp.jsp page is rendered @RequestMapping(value = "/updateAc.action") public ModelAndView updateComp(HttpServletRequest request,Model model){ ModelAndView modelAndView = new ModelAndView(); String companyname = request.getParameter("company"); List<Sealtable> sealtables = service.sealTableBySealCpName(companyname); modelAndView.addObject("sealtables", sealtables); modelAndView.setViewName("comp"); return modelAndView; } comp.jsp: <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%> <%-- <%@ include file="model.jsp"%> --%> <div class='controls' id="updateac" style="margin-left: -20px;margin-top: -15px"> <c:if test="${empty sealtables}"> <label class='radio inline'> No stamp available, please go to apply for a stamp</label> </c:if> <c:if test="${not empty sealtables }"> <c:forEach items="${sealtables}" var="sealtable" varStatus="status"> <label class='radio inline'> <input type='checkbox' name="selectSealType" value='${sealtable.sealtype}' /> ${sealtable.sealtype} </label> </c:forEach> </c:if> </div> Now you can implement a partial refresh of the page. Summarize This is the end of this article about how to use ajax jquery to refresh a div on a page. For more information about ajax jquery page div refresh, please search for previous articles on 123WORDPRESS.COM or continue to browse the following related articles. I hope you will support 123WORDPRESS.COM in the future! You may also be interested in:
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