huimv.farm.cattle/huimv-cattle/src/main/java/com/huimv/cattle/mapper/xml/OverviewMapper.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.huimv.cattle.mapper.OverviewMapper">

    <!-- 通用查询映射结果 -->
    <resultMap id="BaseResultMap" type="com.huimv.cattle.pojo.Overview">
        <id column="id" property="id" />
        <result column="stock_count" property="stockCount" />
        <result column="out_count" property="outCount" />
        <result column="breed_count" property="breedCount" />
        <result column="farm_count" property="farmCount" />
        <result column="output_value" property="outputValue" />
        <result column="variety" property="variety" />
        <result column="farm_code" property="farmCode" />
    </resultMap>

    <!-- 通用查询结果列 -->
    <sql id="Base_Column_List">
        id, stock_count, out_count, breed_count, farm_count, output_value, variety
    </sql>

    <select id="getOverList" resultType="com.huimv.cattle.pojo.Overview">
        select * from overview
    </select>

    <select id="getListOverview" resultType="com.huimv.cattle.pojo.Overview">
        SELECT SUM(stock_count) stockCount ,SUM(out_count) outCount ,SUM(breed_count) breedCount ,SUM(farm_count) farmCount,SUM(output_value) outputValue,SUM(variety) variety  FROM `overview`
        WHERE farm_code != 0
</select>
</mapper>