Mybatis mapper配置

一：查询和插入

<?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.bw30.wechat.menu.mapper.TrafficRedInfoMapper" >
    <resultMap id="BaseResultMap" type="com.bw30.wechat.menu.model.Bw30TrafficRedInfo" >
        <id column="id" property="id" jdbcType="VARCHAR" />
        <result column="trafficred_huodong_id" property="trafficred_huodong_id" jdbcType="INTEGER" />
        <result column="trafficred_creater" property="trafficred_creater" jdbcType="VARCHAR" />
        <result column="creater_nickname" property="creater_nickname" jdbcType="VARCHAR" />
        <result column="trafficred_order_id" property="trafficred_order_id" jdbcType="INTEGER" />
        <result column="trafficred_num" property="trafficred_num" jdbcType="INTEGER" />
        <result column="trafficred_sy_num" property="trafficred_sy_num" jdbcType="INTEGER" />
        <result column="trafficred_size" property="trafficred_size" jdbcType="INTEGER" />
        <result column="trafficred_sy_size" property="trafficred_sy_size" jdbcType="INTEGER" />
        <result column="trafficred_expiry_date" property="trafficred_expiry_date" jdbcType="DATE" />
        <result column="createtime" property="createtime" jdbcType="TIMESTAMP" />
    </resultMap>
    <sql id="Base_Column_List" >
        id, 
        trafficred_huodong_id, 
        trafficred_creater,
        creater_nickname,
        trafficred_order_id, 
        trafficred_num, 
        trafficred_sy_num, 
        trafficred_size,
        trafficred_sy_size
        trafficred_expiry_date, 
        createtime
    </sql>
    <select id="findById" resultMap="BaseResultMap" parameterType="java.lang.String" >
        select 
        <include refid="Base_Column_List" />
        from wechat_trafficredinfo
        where id = #{id,jdbcType=VARCHAR}
    </select>

     <insert id="insert" parameterType="com.bw30.wechat.menu.model.Bw30TrafficRedInfo" >
        insert into wechat_trafficredinfo (id, 
                                           trafficred_huodong_id, 
                                           trafficred_creater, 
                                           creater_nickname,
                                           trafficred_order_id, 
                                           trafficred_num, 
                                           trafficred_sy_num,
                                           trafficred_size,
                                           trafficred_sy_size,
                                           trafficred_expiry_date)
         values (  
                   #{id,jdbcType=VARCHAR}, 
                   #{trafficred_huodong_id,jdbcType=INTEGER}, 
                   #{trafficred_creater,jdbcType=VARCHAR}, 
                   #{creater_nickname,jdbcType=VARCHAR}, 
                   #{trafficred_order_id,jdbcType=INTEGER}, 
                   #{trafficred_num,jdbcType=INTEGER}, 
                   #{trafficred_sy_num,jdbcType=INTEGER}, 
                   #{trafficred_size,jdbcType=INTEGER}, 
                   #{trafficred_sy_size,jdbcType=INTEGER}, 
                   #{trafficred_expiry_date,jdbcType=DATE}
                )
    </insert>

 <select id="findByActivityIdAndOpenid" resultType="BaseResultMap"  >
   select <include refid="Base_Column_List" />
   from wechat_trafficredinfo  
   where trafficred_huodong_id = #{trafficred_huodong_id,jdbcType=INTEGER} and trafficred_creater=#{trafficred_creater,jdbcType=VARCHAR}
</select>

</mapper>

二：批量插入和更新

<insert id="insertPlanOf13thData" parameterType="java.util.List">
        insert into
        edi_data(tjYear,
        recStatus,
        cityId,
        cityName,
        zoneId,
        zoneName,
        planOf13th,
        datatype,
        tmInsert
        )
        values
        <foreach collection="list" item="obj" index="index" separator=",">
            (#{obj.tjYear},10,#{obj.cityId},#{obj.cityName},#{obj.zoneId},#{obj.zoneName},#{obj.planOf13th},#{obj.datatype},sysdate())
        </foreach>
    </insert>

<update id="updateFinanceSheet2Data" parameterType="java.util.List">
         <foreach collection="list" item="item" index="index" open="" close="" separator=";">  
            update edi_data
            <set>
                expOfLastYear=#{item.expOfLastYear},
                expOfThisYear=#{item.expOfThisYear}
            </set>
            where tjYear = #{item.tjYear} and recStatus=10 and
            cityId=#{item.cityId} and zoneId=#{item.zoneId} and datatype=#{item.datatype}
        </foreach>
    </update>

 三：插入后返回自增长的主键值

<insert id="insertAndGetId" useGeneratedKeys="true" keyProperty="userId" parameterType="com.ws.mapper.User">
    insert into user(userName,password,comment)
    values(#{userName},#{password},#{comment})
</insert>

说明：

useGeneratedKeys="true" 表示给主键设置自增长

keyProperty="userId"  表示将自增长后的Id赋值给实体类中的userId字段。

parameterType="com.chenzhou.mybatis.User" 这个属性指向传递的参数实体类