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【查询数据表中第三行数据】
2022-06-21 06:28:00 【刘贵庆】
##判断第三行是否有值:
String sql="select id from tablename limit 2,2";
List<Map<String,Object>> list=jdbctemplate.queryForList(sql.toString());
if(list.size()>0){
//有值。
}else{
//否则
}
....
注意:若用:jdbcTemplate.queryForObject(sql,Integer.class);会出错。边栏推荐
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