大于开始时间小于结束时间
<if test="endTime != null">
AND PREPARATION_TIME <![CDATA[<=]]> #{endTime}
</if>
<if test="startTime != null">
AND PREPARATION_TIME <![CDATA[>=]]> #{startTime}
</if>
模糊查询
<if test="compilationUnit != null and compilationUnit != ''">
AND COMPILATION_UNIT LIKE CONCAT('%', #{compilationUnit},'%')
</if>
原文:https://www.cnblogs.com/junzifeng/p/11794550.html