mybaits的xxMapper.xml文件中大于号和小于号处理

因为这个是xml格式的，所以不允许出现类似“>”这样的字符，但是都可以使用<![CDATA[ ]]>符号进行说明，将此类符号不进行解析 。 mapper文件示例代码：

<select id="selectMonthAdvertise" resultMap="ResultMap">
   select * from ad_n_advertise_t where user_id in
  <foreach item="item" index="index" collection="userIdList" open="(" separator="," close=")">
  #{item}
  </foreach> 
  and isdelete=#{isdelete,jdbcType=TINYINT}  
  and <![CDATA[</span>date_sub(curdate(), INTERVAL 30 DAY) <= date(crt_time)]]> 
  order by crt_time desc
</select>

<select id="selectMonthAdvertise" resultMap="ResultMap">
   select * from ad_n_advertise_t where user_id in
  <foreach item="item" index="index" collection="userIdList" open="(" separator="," close=")">
  #{item}
  </foreach> 
  and isdelete=#{isdelete,jdbcType=TINYINT}  
  and date_sub(curdate(), INTERVAL 30 DAY) &lt= date(crt_time) 
  order by crt_time desc
</select>