struts2和jquery easyui dategrid 结合使用的时候，action返回的JSON对象，在jsp页面的dategrid中不显示。。。

Question

这是action代码：

public String loadRylist(){
        System.out.println("查询人员");
        Map map = new HashMap();
          
        userlist=BmglService.findBmRy(Id);
        for(Users u:userlist){
            System.out.println(u.getUsername());
            System.out.println(u.getBirthday());
        }
        this.total=userlist.size();
        
        
        map.put("total", total);
        map.put("rows", userlist);
        
        try {
            resultObj=JSONObject.fromObject(map);
        } catch (Exception e) {
        
            e.printStackTrace();
        }
        System.out.println("json---------------------------"+resultObj);
        
        
        
        
        return "root";
    }

这是action打印出来的JSON 对象（resultObj）参数：

json---------------------------{"total":2,"rows":[{"birthday":"2010-12-12 00:00:00.0","bm_id":2001001,"cellphone":"13636363636","education":"大学大学","email":"619991254@qq.com","folddate":"2010-12-12 00:00:00.0","id":15,"job":"11111111","nation":"11111111","password":"11111111","remark":"好好好","resume":"好好好","sex":"11111111","telphone":"2010-12-12","username":"位庄人员","usernum":0},{"birthday":"2010-12-12 00:00:00.0","bm_id":2001001,"cellphone":"13636363636","education":"大学大学","email":"619991254@qq.com","folddate":"2010-12-12 00:00:00.0","id":16,"job":"11111111","nation":"11111111","password":"11111111","remark":"好好好","resume":"好好好","sex":"11111111","telphone":"2010-12-12","username":"位庄人员2","usernum":0}]}