stock_zs/src/main/java/mappers/NewsMapper.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.xc.dao.NewsMapper">
    <resultMap id="BaseResultMap" type="com.xc.pojo.News">
        <constructor>
            <idArg column="id" jdbcType="INTEGER" javaType="java.lang.Integer"/>
            <arg column="title" jdbcType="VARCHAR" javaType="java.lang.String"/>
            <arg column="cover" jdbcType="VARCHAR" javaType="java.lang.String"/>
            <arg column="content" jdbcType="VARCHAR" javaType="java.lang.String"/>
            <arg column="source" jdbcType="VARCHAR" javaType="java.lang.String"/>
            <arg column="hot" jdbcType="INTEGER" javaType="java.lang.Integer"/>
            <arg column="publish_time" jdbcType="TIMESTAMP" javaType="java.util.Date"/>
            <arg column="create_time" jdbcType="TIMESTAMP" javaType="java.util.Date"/>
            <arg column="update_time" jdbcType="TIMESTAMP" javaType="java.util.Date"/>
        </constructor>
    </resultMap>
    <sql id="Base_Column_List">
        id, title, cover, content, source, hot, publish_time, create_time, update_time
    </sql>

    <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer">
        select
        <include refid="Base_Column_List"/>
        from news
        where id = #{id,jdbcType=INTEGER}
    </select>
    <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
        delete from news
        where id = #{id,jdbcType=INTEGER}
    </delete>
    <insert id="insert" parameterType="com.xc.pojo.News">
        insert into news (
            title, cover, content, source, hot, publish_time, create_time
        )
        values (#{title,jdbcType=VARCHAR}, #{cover,jdbcType=VARCHAR},
            #{content,jdbcType=VARCHAR},#{source,jdbcType=VARCHAR},
            #{hot,jdbcType=INTEGER}, #{publishTime,jdbcType=TIMESTAMP}, now()
        )
    </insert>

    <update id="updateByPrimaryKeySelective" parameterType="com.xc.pojo.News">
        update news
        <set>
            <if test="title != null">
                title = #{title,jdbcType=VARCHAR},
            </if>
            <if test="cover != null">
                cover = #{cover,jdbcType=VARCHAR},
            </if>
            <if test="content != null">
                content = #{content,jdbcType=VARCHAR},
            </if>
            <if test="source != null">
                source = #{source,jdbcType=VARCHAR},
            </if>
            <if test="hot != null">
                hot = #{hot,jdbcType=INTEGER},
            </if>
            <if test="publishTime != null">
                publish_time = #{publishTime,jdbcType=TIMESTAMP},
            </if>
        </set>
        where id = #{id,jdbcType=INTEGER}
    </update>

    <select id="listByNews" parameterType="map" resultMap="BaseResultMap">
        SELECT
        <include refid="Base_Column_List"/>
        FROM news
        <where>
            <if test="title != null and title != '' ">
                and title like CONCAT('%',#{title},'%')
            </if>
            <if test="source != null and source != '' ">
                and source like CONCAT('%',#{source},'%')
            </if>
            <if test="hot != null">
                and hot = #{hot}
            </if>
        </where>
        order by
        id
        desc
    </select>

</mapper>