mysql循环map_Java mybatis 循环遍历map

157 阅读 0 评论 104 点赞

我是靠谱客的博主大气冬日，这篇文章主要介绍mysql循环map_Java mybatis 循环遍历map，现在分享给大家，希望可以做个参考。

有次需要完成一个功能的时候sql语句用到id NOT IN

一开始这个参数我在impl 用字符串拼接好了，如 (123,456,789)

通过dao层的mapper传入xml，运行后，报错

拉到下面看详细信息，

Cause: 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 '' (13690,13693,13691,13692,13716,13714,13715,13718,13719,13720,13712,13713,13721' at line 3

; 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 xxxxxx

然后就不采用字符串先拼接好的方法，直接丢一个map进去循环遍历，在xml中完成拼接

接下来看看my