mybatis獲取list時，分頁失敗

@RequestMapping(value="/t9a_project_asmRepoApprovalList.ajax",method=RequestMethod.POST)
    @ResponseBody
    @Paging
    public PageInfo<T9a_project_asmrepoDTO> t9a_project_asmRepoApprovalList(T9a_project_asmrepoDTO t9a_project_asmrepo){
        //String s = String.valueOf(getT99_user().getUser_id()); //t9a_project_asmrepo.setAssignee(s);
        List<T9a_project_asmrepoDTO> list = t9a_project_asmrepoServiceI.getT9a_project_asmRepoApprovalList(t9a_project_asmrepo);
        PageInfo<T9a_project_asmrepoDTO> pageinfo = MyBatisPageHelper.getPageInfo(list);
        return pageinfo;
    }

如圖，只要設置了這個字段，分頁就會失敗，假設字段是個固定值分頁不會失敗，若是是從其餘地方獲取的就會分頁失敗，不知道緣由

 

有誰知道能夠告知一下嗎？