easyUI的datagrid无法通过函数$('#id').datagrid(。。。）来动态插入数据

Question

 JS代码：
function toStepGrid(id) {
/*此处id是可以获取到的传值*/
        $('#stepGrid').datagrid({
            title:'流程',
            pageSize:20,
            fitColumns:true,
            pagination:true,
            rownumbers:true,
            singleSelect:true,
            url: 'admin/findStep?id='+id,
            columns:[[
                      {field:'name',title:'流程名',width:50},
                      {field:'id',title:'待定',width:50},
                  ]]
        });
    }

后台：
controller：
@ResponseBody
    @RequestMapping("/findStep")
    public Map<Object, Object> findStep(HttpServletRequest request, Model model){
        String str = request.getParameter("id");
        Long stepId = Long.parseLong(str);
        Map<Object, Object> map = formService.findStep(stepId);
        System.out.println("id==>"+map.get("id"));
        return map;
    }

    Service：
    public Map<Object, Object> findStep(Long stepId) throws ServiceException {
        Map<Object, Object> map = new HashMap<>();
        map = baseDao.find("select id,name from step where id=?", stepId).get(0);
        List<Step> steps = baseDao.findAll("from Step s where s.id=?", stepId);
        System.out.println("Service: name==>"+map.get("name"));
        return map;
    }

Answer 1

解决了，service层查询用分页

```public Map findFormByStep(Long stepId, int start, int limit) throws ServiceException {
StringBuffer sql = new StringBuffer("select name,dvalue,type,dialog,width,height from form f,form_step fs where f.id=fs.form_id and fs.step_id=").append(stepId);
Map map = baseDao.findAllforPage(sql.toString(), start, limit);
@SuppressWarnings("unchecked")
List> rows=(List>) map.get("rows");
for (Map row : rows) {
List> steps = baseDao.find("select s.name from form_step fs left join step s on s.id=fs.step_id where fs.form_id="+row.get("id"));
StringBuffer temp = new StringBuffer();
row.put("steps", temp);
}
return map;
}