下拉框动态级联加载

学院名称：  课程名称： 

$(function() { // 下拉框选择控件，下拉框的内容是动态查询数据库信息 $('#collegeName').combobox({ url:'${pageContext.request.contextPath}/loadInstitution', editable:false, //不可编辑状态 cache: false, panelHeight: '150', valueField:'id', textField:'institutionName', onHidePanel: function(){ $("#courseName").combobox("setValue",'');//清空课程 var id = $('#collegeName').combobox('getValue'); //alert(id); $.ajax({ type: "POST", url: '${pageContext.request.contextPath}/loadCourse?id=' + id, cache: false, dataType : "json", success: function(data){ $("#courseName").combobox("loadData",data); } }); } }); $('#courseName').combobox({ //url:'itemManage!categorytbl', editable:false, //不可编辑状态 cache: false, panelHeight: '150',//自动高度适合 valueField:'id', textField:'courseName' }); });

@RequestMapping("/loadInstitution") /** * 加载学院 * @param * @param * @return void * @exception/throws [违例类型] [违例说明] * @see [类、类#方法、类#成员] * @deprecated */ public void loadInstitute(HttpServletRequest request, HttpServletResponse response) throws Exception { try { JackJsonUtils JackJsonUtils = new JackJsonUtils(); List institutionList = institutionBean .queryAllColleage(); System.out.println("学院list大小=====" + institutionList.size()); String result = JackJsonUtils.BeanToJson(institutionList); System.out.println(result); JsonUtils.outJson(response, result); } catch (Exception e) { logger.error("加载学院失败", e); } } @RequestMapping("/loadCourse") /** * 动态加载课程 * * * @param * @param * @return void * @exception/throws [违例类型] [违例说明] * @see [类、类#方法、类#成员] * @deprecated */ public void loadCourse(HttpServletRequest request, HttpServletResponse response) throws Exception { JackJsonUtils JackJsonUtils = new JackJsonUtils(); String id = request.getParameter("id"); System.out.println("学院id====" + id); try { if(id != null && id != ""){ List listCourseInfoList = courseBean .queryAllCourseInfos(id); System.out.println("课程list大小=====" + listCourseInfoList.size()); String result = JackJsonUtils.BeanToJson(listCourseInfoList); System.out.println(result); JsonUtils.outJson(response, result); } } catch (Exception e) { logger.error("加载课程失败", e); } }