bjtu_order/build/classes/com/mapper/LiuyanMapper.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.mapper.LiuyanMapper">
	<resultMap type="Liuyan" id="queryMap">
		<id property="id" column="id" />
		<result property="uid" column="uid" />
		<result property="lynr" column="lynr" />
		<result property="lysj" column="lysj" />
		<result property="lyhf" column="lyhf" />
		<association property="user" javaType="Userinfo">
			<id property="id" column="id" />
			<result property="name" column="name" />
			<result property="tel" column="tel" />
		</association>
	</resultMap>
	<sql id="Where_Clause">
		<where>
			<if test="id!=null and id!=0">and a.id= #{id}</if>
			<if test="uid!=null and uid!=''">and a.uid= #{uid}</if>
		</where>
	</sql>
	<select id="query" parameterType="java.util.Map"
		resultMap="queryMap">
		select a.*,b.name,b.tel   from liuyan a left join
		userinfo b on a.uid=b.id
		<include refid="Where_Clause" />
		order by id desc
	</select>
	<select id="getCount" parameterType="java.util.Map"
		resultType="Int">
		select count(*) nums from liuyan a left join userinfo b on
		a.uid=b.id
		<include refid="Where_Clause" />
	</select>
	<select id="queryLiuyanById" parameterType="int"
		resultType="Liuyan">
		select * from liuyan where id=${value}
	</select>
	<insert id="insertLiuyan" useGeneratedKeys="true" keyProperty="id"
		parameterType="Liuyan">
		insert into liuyan (uid,lynr,lysj,lyhf) values
		(#{uid},#{lynr},#{lysj},#{lyhf});
	</insert>
	<update id="updateLiuyan" parameterType="Liuyan">
		update liuyan set
		uid=#{uid},lynr=#{lynr},lysj=#{lysj},lyhf=#{lyhf} where id=#{id}
	</update>
	<delete id="deleteLiuyan" parameterType="int">
		delete from liuyan where id=${value}
	</delete>
</mapper>