queryModel.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.mapping.queryModel" >
  <!--banner查询 -->
  <select id="queryBanner" resultType="java.util.HashMap" parameterType="java.util.HashMap">
      SELECT
      t.id,
      t.title,
      t.pic_url AS picUrl,
      t.is_up AS isUp,
      t.weight,
      t.jump_type as jumpType
      FROM
      t_base_banner t
      WHERE
      t.is_delete =0
      <if test="title != null">
       AND t.title LIKE #{title}
      </if>
      ORDER BY t.create_dt DESC, t.weight DESC
  </select>




</mapper>