• Mybatis常用xml


    工作中mybatis常用的xml代码

    <?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.up.sell.mapper.system.AdvertisementMapper">
    
        <resultMap type="Advertisement" id="AdvertisementResult">
            <id property="id" column="id" />
            <result property="title" column="title" />
            <result property="imgPath" column="img_path" />
            <result property="url" column="url" />
            <result property="description" column="description" />
            <result property="sort" column="sort" />
            <result property="place" column="place" />
            <result property="provinceId" column="province_id" />
            <result property="cityId" column="city_id" />
            <result property="advFlag" column="adv_flag" />
            <result property="createUser" column="create_user" />
            <result property="createTime" column="create_time" />
            <result property="updateUser" column="update_user" />
            <result property="updateTime" column="update_time" />
            <association property="areas" column="id" javaType="com.up.sell.vo.system.Areas" resultMap="areasResult" />
            <association property="dictionary" column="id" javaType="com.up.sell.vo.system.Dictionary" resultMap="deptResult" />
        </resultMap> 
    
        <resultMap id="areasResult" type="Areas">
            <id property="id" column="id" />
            <result property="areaName" column="area_name" />
            <result property="parentId" column="parent_id" />
            <result property="shortName" column="short_name" />
        </resultMap>
    
        <resultMap id="deptResult" type="Dictionary">
            <id property="dKey" column="d_key" />
            <result property="dValue" column="d_value" />
            <result property="dName" column="d_name" />
            <result property="parentKey" column="parent_ey" />
            <result property="flag" column="flag" />
        </resultMap>
    
        <select id="findList" parameterType="Advertisement" resultMap="AdvertisementResult">
            SELECT
            a.id ,
            a.title ,
            a.img_path ,
            a.url ,
            a.description ,
            a.sort ,
            a.adv_flag,
            s1.short_name,
            d.d_name
            FROM
            advertisement a
            LEFT JOIN areas s1 on
            a.city_id = s1.id
            LEFT JOIN dictionary d ON d.parent_key = 111 AND
            a.place = d.d_value
        </select>
    
        <select id="findCity" parameterType="Advertisement" resultMap="AdvertisementResult">
            SELECT DISTINCT
            a.id ,
            a.short_name
            FROM
            sys_company s
            LEFT JOIN areas a
            ON(s.city_id = a.id)
            WHERE
            (s.id = #{arg0} OR s.parent_id = #{arg0})
            AND a.id IS NOT
            NULL
            AND a.short_name IS NOT NULL
        </select>
    
        <select id="findPlace" parameterType="Advertisement" resultMap="AdvertisementResult">
            SELECT
            d.d_value ,
            d_name
            FROM
            dictionary d
            WHERE
            d.parent_key = 111
            AND flag
            = 1
        </select>
    
        <insert id="inserts" parameterType="Advertisement"
            useGeneratedKeys="true" keyProperty="id">
            insert into advertisement(
            <if test="title != null and title != ''">title,</if>
            <if test="imgPath != null and imgPath != ''">img_path,</if>
            <if test="url != null and url != ''">url,</if>
            <if test="sort != null and sort != ''">sort,</if>
            <if test="place != null and place != ''">place,</if>
            <if test="provinceId != null and provinceId != ''">province_id,</if>
            <if test="cityId != null and cityId != ''">city_id,</if>
            <if test="createUser != null and createUser != ''">create_user,</if>
            create_time
            )values(
            <if test="title != null and title != ''">#{title},</if>
            <if test="imgPath != null and imgPath != ''">#{imgPath},</if>
            <if test="url != null and url != ''">#{url},</if>
            <if test="sort != null and sort != ''">#{sort},</if>
            <if test="place != null and place != ''">#{place},</if>
            <if test="provinceId != null and provinceId != ''">#{provinceId},</if>
            <if test="cityId != null and cityId != ''">#{cityId},</if>
            <if test="createUser != null and createUser != ''">#{createUser},</if>
            sysdate()
            )
        </insert>
    
    
        <select id="findSize" resultType="long">
            select count(1) from advertisement
        </select>
    
    
        <select id="selectStatus" resultType="Integer">
            select adv_flag from advertisement where id = #{arg0}
        </select>
    
    
        <select id="selectId" parameterType="Advertisement" resultMap="AdvertisementResult">
            select * from advertisement where id = #{arg0}
        </select>
    
    
        <update id="updates" parameterType="Advertisement">
            update advertisement
            <set>
                <if test="title != null and title != ''">title = #{title},</if>
                <if test="imgPath != null and imgPath != ''">img_path = #{imgPath},</if>
                <if test="url != null and url != ''">url = #{url},</if>
                <if test="description != null and description != ''">description = #{description},</if>
                <if test="sort != null and sort != 0">sort = #{sort},</if>
                <if test="place != null and place != 0">place = #{place},</if>
                <if test="cityId != null and cityId != ''">city_id = #{cityId},</if>
                <if test="updateUser != null and updateUser != 0">update_user = #{updateUser},</if>
                update_time = sysdate()
            </set>
            where id = #{id}
        </update>
    
    
        <select id="selectProvinceId" resultType="String">
            select parent_id from areas where id = #{arg0}
        </select>
    
        <select id="modifyStatus" resultType="Integer">
            select adv_flag from advertisement where id = #{arg0}
        </select>
    
        <update id="modifyOFF">
            update advertisement set adv_flag = 1 where id = #{arg0}
        </update>
        
        <update id="modifyNO">
            update advertisement set adv_flag = 0 where id = #{arg0}
        </update>
        
        <delete id="delete" parameterType="String">
            delete from advertisement where id = #{arg0}
        </delete>
        
        
    </mapper>
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  • 原文地址:https://www.cnblogs.com/itiande/p/9628800.html
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