数据查询时报 Error occurred  when binding parameters ':role_name'
"SELECT `id`,`role_name`,`role_desc`,`create_time` FROM `ocs_role` WHERE  ( 1=1 and role_name like '%:role_name%' ) LIMIT 0,20  ",
                        {
                            "role_name": "1234"
                        },
但是通过fetchSql生成sql 为SELECT COUNT(*) AS think_count FROM `ocs_role` WHERE  ( 1=1 and role_name like '%'1234'%' )
1234多了两个单引号，不知道啥原因，文档上也没见怎么用