mybatis中使用>和<

mybatis和ibatis的配置文件使用>和<的情况

<使用&lt;替代

>使用&gt;替代

 <update id="MS-NOTIFY-MSG-BATCH-UPDATE_IPADDR">
   
        update T_NOTIFY_MSG set IP_ADDR=#ipAddr#, GMT_MODIFIED=systimestamp where MSG_ID in (
        	select MSG_ID from (
				SELECT MSG_ID
   			    FROM T_NOTIFY_MSG
   				WHERE IP_ADDR is null and GMT_PRE_TIME &gt;=(sysdate-1) and GMT_PRE_TIME &lt;= sysdate 
   				<isNotNull property="notifyType" prepend=" and ">NOTIFY_TYPE=#notifyType#  </isNotNull>
   				<isNotNull property="status" prepend=" and ">STATUS = #status#  </isNotNull>
   				<isNotNull property="msgType" prepend=" and ">MSG_TYPE=#msgType#  </isNotNull>
   				ORDER BY GMT_CREATE ASC
				) where rownum &lt;= #maxSize#
        ) and IP_ADDR is null and GMT_PRE_TIME &lt;= sysdate
    </update>