KYGK/src/main/resources/mapper/BaseSchoolDao.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.liang.dao.BaseSchoolDao">

    <resultMap type="com.liang.entity.BaseSchool" id="BaseSchoolMap">
        <result property="id" column="id" jdbcType="INTEGER"/>
        <result property="name" column="name" jdbcType="VARCHAR"/>
        <result property="pid" column="pid" jdbcType="INTEGER"/>
    </resultMap>

    <!--查询单个-->
    <select id="queryById" resultMap="BaseSchoolMap">
        select id,
               name,
               pid
        from base_School
        where id = #{id}
    </select>

    <!--查询指定行数据-->
    <select id="queryAllByLimit" resultMap="BaseSchoolMap">
        select
        id, name, pid
        from base_School
        <where>
            <if test="id != null">
                and id = #{id}
            </if>
            <if test="name != null and name != ''">
                and name = #{name}
            </if>
            <if test="pid != null">
                and pid = #{pid}
            </if>
        </where>
        limit #{pageable.offset}, #{pageable.pageSize}
    </select>

    <!--统计总行数-->
    <select id="count" resultType="java.lang.Long">
        select count(1)
        from base_School
        <where>
            <if test="id != null">
                and id = #{id}
            </if>
            <if test="name != null and name != ''">
                and name = #{name}
            </if>
            <if test="pid != null">
                and pid = #{pid}
            </if>
        </where>
    </select>

    <!--新增所有列-->
    <insert id="insert" keyProperty="id" useGeneratedKeys="true">
        insert into base_School(name, pid)
        values (#{name}, #{pid})
    </insert>

    <insert id="insertBatch" keyProperty="id" useGeneratedKeys="true">
        insert into base_School(name, pid)
        values
        <foreach collection="entities" item="entity" separator=",">
            (#{entity.name}, #{entity.pid})
        </foreach>
    </insert>

    <insert id="insertOrUpdateBatch" keyProperty="id" useGeneratedKeys="true">
        insert into base_School(name, pid)
        values
        <foreach collection="entities" item="entity" separator=",">
            (#{entity.name}, #{entity.pid})
        </foreach>
        on duplicate key update
        name = values(name),
        pid = values(pid)
    </insert>

    <!--通过主键修改数据-->
    <update id="update">
        update base_School
        <set>
            <if test="name != null and name != ''">
                name = #{name},
            </if>
            <if test="pid != null">
                pid = #{pid},
            </if>
        </set>
        where id = #{id}
    </update>

    <!--通过主键删除-->
    <delete id="deleteById">
        delete
        from base_School
        where id = #{id}
    </delete>

    <!--查询所有记录-->
    <select id="queryAll" resultMap="BaseSchoolMap">
        select *
        from base_School
        order by id asc
    </select>

    <!--获取国家基金委学科领域-->
    <select id="getSchoolList" resultType="map">
        select id as code, name
        from base_School
    </select>
</mapper>