mybatis异常 bad SQL grammar []; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorE

这个错误是自己开发过程中不细心导致的，特记下来，作为警惕。

; bad SQL grammar []; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''1'' at line 14

mysql分页 limit中需要整数，结果自己 dao层写成了String 类型，（低级错误）

select
from  hui_app_lottery_past 
where lotterytype = #{lotterytype} 



order by issuenumber desc limit #{pageSize}

dao层： public List queryPastLimit(@Param("issuenumber")String issuenumber,@Param("lotterytype")String lotterytype,@Param("pageSize") String pageSize);

正确写法为 ：public List queryPastLimit(@Param("issuenumber")String issuenumber,@Param("lotterytype")String lotterytype,@Param("pageSize") int pageSize);