SpringMVC中使用zTree - JAVA

1 前端页面

%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>  
<%  
String path = request.getContextPath();  
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";  
%>  
  
  
<html>  
    
      
      
    左侧树形导航栏  
      
      
      
          
      
      
      
      
      
    <script type="text/java script" src="./js/jquery-1.7.2.min.js">  
    <script type="text/java script" src="./js/jquery.ztree.core-3.5.js">  
      
    <SCRIPT type="text/java script">  
        var setting = {   
        treeNodeKey : "id", //在isSimpleData格式下，当前节点id属性  
        treeNodeParentKey : "pId", //在isSimpleData格式下，当前节点的父节点id属性  
        showLine : true, //是否显示节点间的连线  
        checkable : true //每个节点上是否显示 CheckBox  
        };  
        var zNodes;  
        $(function(){  
            $.ajax({  
                async:false,  
                cache:false,  
                type:'POST',  
                //dataType:"String",  
                url:'${pageContext.request.contextPath}/TestZTree',  
                success:function(data){  
                    zNodes = data;  
                },error:function(){  
                    alert("请求失败");  
                }  
            });  
        });  
        /*  
        var zNodes =[  
            { id:1, pId:0, name:"父节点1", open:true},  
            { id:2, pId:0, name:"父节点2", open:true},  
            { id:3, pId:0, name:"父节点3",  open:true}  
           ];  
        */  
            $(document).ready(function(){  
            treeNodes = eva l("(" + zNodes + ")");  //将string类型转换成json   
            $.fn.zTree.init($("#tree"), setting, treeNodes);  
           });

2.后台代码

@Controller  
@SessionAttributes("userT")  
public class Test {  
    @RequestMapping("TestZTree")  
    public @ResponseBody String TestZTree() {  
        Tree s1 = new Tree(1,0,"test1",true);  
        Tree s2 = new Tree(2,0,"test2",true);  
        Tree s3 = new Tree(3,0,"test3",true);  
        Tree s4 = new Tree(4,0,"test4",true);  
        Tree s5 = new Tree(5,0,"test5",true);  
        Tree s6 = new Tree(6,0,"test6",true);  
        Tree s7 = new Tree(7,0,"test7",true);  
        Tree s8 = new Tree(8,0,"test8",true);  
        Tree s9 = new Tree(9,0,"test9",true);  
        Tree s10 = new Tree(10,0,"test10",true);  
        Tree s11 = new Tree(11,0,"test11",true);  
        List lstTree = new ArrayList();  
        lstTree.add(s1);  
        lstTree.add(s2);  
        lstTree.add(s3);  
        lstTree.add(s4);  
        lstTree.add(s5);  
        lstTree.add(s6);  
        lstTree.add(s7);  
        lstTree.add(s8);  
        lstTree.add(s9);  
        lstTree.add(s10);  
        lstTree.add(s11);  
        return makeTree(lstTree);  
    }  
    public static String makeTree(List roles){  
        //Check Roles is null  
        StringBuffer sb = new StringBuffer();  
        Tree r = null;  
            sb.append("[");  
            for(int i=0;i