S2SH+JQuery ztree生成三级级联树形列表菜单.doc

S2SH+JQuery ztree生成三级级联树形列表菜单1.LoadZTreeAction.javapublic LoadZTreeAction() extends ActionSupportprivate static final long serialVersionUID = 4258282097802772367L;private OneDAO oneDAO;private TwoDAOtwoDAO;private ThreeDAO threeDAO;/Generate getters and setters/为了提高程序效率，先加载二级级联菜单，当点击子菜单时再动态添加下一级public String loadZTree()JSONArray jsonArray = new JSONArray();JSONObject one =new JSONObject();JSONObjecttwo = new JSONObject();List listOne = oneDAO.findAll();for(One oTemp:listOne)int pID = -1;one.put(id,oTemp.getID();one.put(pID,pID);one.put(name,oTemp.getName();one.put(url,);one.put(target,rightFrame);jsonObject.add(one);ListlistTwo = twoDAO.findByOneId(oTemp.getID();for(Two tTemp : listTwo)two.put(id,tTemp.getID();two.put(pID,oTemp.getID();two.put(name,tTemp.getName();two.put(url,);two.put(target,rightFrame);jsonObject.add(two);return null;public String loadSonTree()HttpServletRequest request =ServletActionContext.getRequest();HttpServletResponse response = ServletActionContext.getResponse();response.setCharacterEncoding(utf-8);response.contentType(html/text);JSONArray jsonArray = new JSONArray();JSONObject obj = new JSONObject();String twoID = request.getParameter(twoID);List listThree =threeDAO.findByTwoId(twoID);for(Three thTemp : listThree)obj.put(id,thTemp.getID();obj.put(pId,twoID);obj.put(name,thTemp.getName();obj.put(url,);obj.put(target,rightFrame);jsonArray.add(obj);tryPrintWriter out = response.getWriter();out.print(jsonArray);out.flush();out.close();catch(IOException ioe)ioe.printStackTrace();return null;2.struts.xml3.applicationContext.xml4.test.jsvar setting =async: enable: true,url: json/loadZTree.action,autoParam: id,asyncParamOther: ,expandSpeed: fast,data: simpleData: enable: true,idKey: id,pIdKey: pId,rootPid: -2,callback: onClick: treeNodeClick;$(document).ready(function() $.fn.zTree.init($(#treeDemo), setting););function treeNodeClick(event,treeId,treeNode)twoID =treeNode.id;var params = twoID: twoID;$.ajax(url: json/loadSonTree.action,type: post,dataType: json,data: params,cache: false,error: function(e)e.getMessage();,success: function(jsonArray)var treeObj