EasyUi 菜单树形 列表显示

    $(function($) {
            $('#tg').treegrid({
             url:'<%=request.getContextPath()%>/sysMenu/list',
             rownumbers: false,
             treeField: 'name',
             checkbox:true,
　　　　　　　　ascadeCheck:true,//结连显示
             idField:'id',
             emptyMsg:'无数据',
               columns:[[
            {title:'id',field:'id',160,hidden:true},
            {field:'action',title:'操作',formatter:formatAction,'15%'},
                   {title:'菜单名称',field:'name','25%',align:'left'},
                   {title:'菜单路径',field:'url','25%',align:'left'},
                    {title:'菜单排序值',field:'displayorder','15%',align:'left'},
                   {title:'创建日期',field:'createdate','25%',align:'left'},
                   {title:'修改日期',field:'modifydate','25%',align:'left'}
               ]]
        });
         
    });
    function formatAction(val,row){
        return '<a style=""  href="#" onclick="javascript:editMenu('+row.id+')">    编辑</a>';
    }    

    @RequestMapping("/list")
    public void list(HttpServletRequest request,HttpServletResponse response){
            

        List<SysMenu> list = null;
        Map<String,Object> params = new HashMap<String,Object>();
        
        gtSysUser user = (gtSysUser)request.getSession().getAttribute("user");
            list = this.sysMenuService.list(params);
            SysMenu tempMenu = sysMenuService.selectByPrimaryKey(1);
            
            if(!list.contains(tempMenu))
            {
                list.add(0,tempMenu);
                
            }

        List menuList = new ArrayList<Map>();
        //根菜单
        HashMap<String,Object> menuRootMap = new HashMap<>();
        for(SysMenu menu : list){
                
                if(menu.getParentid() == null || menu.getParentid() == 0){
                    menuRootMap.put("id", menu.getId());
                    menuRootMap.put("name", menu.getName());
                    menuRootMap.put("url", menu.getUrl());
                    menuRootMap.put("icon", menu.getIcon());
                    menuRootMap.put("displayorder", menu.getDisplayorder());
                    menuRootMap.put("createdate", menu.getCreatedate());
                    menuRootMap.put("modifydate", menu.getModifydate());
                }
        };        
        ArrayList<Map<String,Object>> modalArray = new ArrayList<Map<String,Object>>();
          for(SysMenu menuParent : list){
            
            //二级模块
            if(menuParent.getParentid() == menuRootMap.get("id")){
                HashMap<String,Object> menuParentMap = new HashMap<String,Object>();
                ArrayList<Map<String,Object>> childrenList = new ArrayList<Map<String,Object>>() ;
                menuParentMap.put("id", menuParent.getId());
                menuParentMap.put("name", menuParent.getName());
                menuParentMap.put("url", menuParent.getUrl());
                menuParentMap.put("icon", menuParent.getIcon());
                menuParentMap.put("displayorder", menuParent.getDisplayorder());
                menuParentMap.put("createdate", menuParent.getCreatedate());
                menuParentMap.put("modifydate", menuParent.getModifydate());
                
                //菜单
                for(SysMenu menuChildren : list){
                    
                    if(menuChildren.getParentid().intValue() == menuParent.getId().intValue()){
                        HashMap<String,Object> menuChildrenMap = new HashMap<>();
                        menuChildrenMap.put("id", menuChildren.getId());
                        menuChildrenMap.put("name", menuChildren.getName());
                        menuChildrenMap.put("url", menuChildren.getUrl());
                        menuChildrenMap.put("icon", menuChildren.getIcon());
                        menuChildrenMap.put("displayorder", menuChildren.getDisplayorder());
                        menuChildrenMap.put("createdate", menuChildren.getCreatedate());
                        menuChildrenMap.put("modifydate", menuChildren.getModifydate());
                        childrenList.add(menuChildrenMap);
                        
                        ArrayList<Map<String,Object>> buttonChildrenList = new ArrayList<Map<String,Object>>();
                        //按钮
                        for(SysMenu menuButton : list){
                        
                            if(menuButton.getParentid().intValue() == menuChildren.getId().intValue()){
                                HashMap<String,Object> buttonChildrenMap = new HashMap<>();
                                buttonChildrenMap.put("id", menuButton.getId());
                                buttonChildrenMap.put("name", menuButton.getName());
                                buttonChildrenMap.put("url", menuButton.getUrl());
                                buttonChildrenMap.put("icon", menuButton.getIcon());
                                buttonChildrenMap.put("displayorder", menuButton.getDisplayorder());
                                buttonChildrenMap.put("createdate", menuButton.getCreatedate());
                                buttonChildrenMap.put("modifydate", menuButton.getModifydate());
                                buttonChildrenList.add(buttonChildrenMap);    
                            }    
                        }
                        menuChildrenMap.put("children", buttonChildrenList);
                    }
                }
                menuParentMap.put("children", childrenList);
                modalArray.add(menuParentMap);
            }
        }
        
        menuRootMap.put("children", modalArray);
        
        menuList.add(menuRootMap);
        
        //HashMap<String,Object> messageMap = new HashMap<String,Object>();
        //messageMap.put("rows", list);
        
        //this.out(response, messageMap);
        this.webOut(response, menuList);
        return;
    }