Question

在mybatis中xml中不等于怎么写

Answer 1

<if test="startTime != null and startTime !=''">

</if>

例子：

①select * from 表 where username = 'Tom' and id != 45

②mybatis :

select * from 表 where

<if test='username != "%null%"'>

username = #{username} and id != #{id}

</if>

Answer 2

例: select * from 表 where username = 'Tom' and id != 45

mybatis :
select * from 表 where
<if test='username != "%null%"'>
username = #{username} and id != #{id}
</if>

Answer 3

<if test="startTime != null and startTime !=''">

</if>

Answer 4

<![CDATA[ <> #{属性}]]

Answer 5

<![CDATA[ <> ]]>  或者 

<>