java - 根据月份查询多个表里的内容怎么实现好？

Question

有12个一样结构的表，分别记录十二个月份的相关信息。
用户可以选择起始月份，结束月份，查询信息。表名类似XXXX_2017_01，XXXX_2017_12这样，
我得先根据用户传入的月份拼接表名，再用UNION ALL进行查询？但是查询出来的LIST里面就不知道每条记录是属于哪个表的了。
MYBATIS应该怎么写好？

Answer 1

1. If you don’t consider sql injection, you can search the difference between #{} and ${} on Baidu, then upgrade the sql statement to the business level and treat it as business processing. After splicing, use ${} to pass it into the atomic layer

2. Checked 12 times