MyBatis动态sql中模糊查询

1、直接拼接%%：

<select id="getActiveDatas" parameterType="java.util.Map" resultType="java.util.Map">

  select * from tab_test where is_deleted = 0

  <if test="frameNo != null and frameNo != '%%'">

  and frame_no like '%${frameNo}%'

  </if>

  </select>
2、定义 一个<bind/>变量：

<select id="getActiveDatas" parameterType="java.util.Map" resultType="java.util.Map">

  <bind name="frameNo" value="'%' + _parameter.frameNo + '%'" />

  select <include refid="textDatas"/> from tab_test where is_deleted = 0

  <if test="frameNo != null and frameNo != '%%'">

  and frame_no like #{frameNo}

  </if>
</select>

3、使用locate()函数：

<select id="getActiveDatas" parameterType="java.util.Map" resultType="java.util.Map">

  select * from tab_test where is_deleted = 0

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

  and LOCATE(#{frameNo}, frame_no ) > 0

  </if>

 </select>
4、使用instr()函数：

<select id="getActiveDatas" parameterType="java.util.Map" resultType="java.util.Map">

  select * from tab_test where is_deleted = 0

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

  and INSTR(frame_no , #{frameNo})

  </if>

 </select>