<?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.newfiber.api.pc.dao.EventsManage.PatroPointInfoDao"> <select id="getList" resultType="com.newfiber.api.pc.model.EventsManage.PatroPointInfo"> SELECT name,state,stateName FROM patro_point_info ORDER BY RAND() limit 4 </select> </mapper>