Mybatis篇.$与#的区别

$

select * from a where id = ${recId} 最后生成的SQL为： 1select * from a where id = 1 即：直接将参数值替换到了原来${recId}的位置，相当于硬拼SQL

#

select * from a where id = #{recid} 最后生成的SQL为： select * from a where id = ? 即：#{...}被识别为一个SQL参数