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<?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.example.excel_upload.dao.UserDao">
<resultMap type="com.example.excel_upload.entity.User" id="UserMap">
<result property="id" column="id" jdbcType="INTEGER"/>
<result property="username" column="username" jdbcType="VARCHAR"/>
<result property="password" column="password" jdbcType="VARCHAR"/>
<result property="nickname" column="nickname" jdbcType="VARCHAR"/>
<result property="phone" column="phone" jdbcType="VARCHAR"/>
<result property="email" column="email" jdbcType="VARCHAR"/>
</resultMap>
<!--查询单个-->
<select id="queryById" resultMap="UserMap">
select id,
username,
password,
nickname,
phone,
email
from user
where id = #{id}
</select>
<!--查询指定行数据-->
<select id="queryAllByLimit" resultMap="UserMap">
select
id, username, password, nickname, phone, email
from user
<where>
<if test="id != null">
and id = #{id}
</if>
<if test="username != null and username != ''">
and username = #{username}
</if>
<if test="password != null and password != ''">
and password = #{password}
</if>
<if test="nickname != null and nickname != ''">
and nickname = #{nickname}
</if>
<if test="phone != null and phone != ''">
and phone = #{phone}
</if>
<if test="email != null and email != ''">
and email = #{email}
</if>
</where>
limit #{pageable.offset}, #{pageable.pageSize}
</select>
<!--查询所有数据-->
<select id="queryAll" resultMap="UserMap">
select
id, username, password, nickname, phone, email
from user
<where>
<if test="id != null">
and id = #{id}
</if>
<if test="username != null and username != ''">
and username = #{username}
</if>
<if test="password != null and password != ''">
and password = #{password}
</if>
<if test="nickname != null and nickname != ''">
and nickname = #{nickname}
</if>
<if test="phone != null and phone != ''">
and phone = #{phone}
</if>
<if test="email != null and email != ''">
and email = #{email}
</if>
</where>
</select>
<!--统计总行数-->
<select id="count" resultType="java.lang.Long">
select count(1)
from user
<where>
<if test="id != null">
and id = #{id}
</if>
<if test="username != null and username != ''">
and username = #{username}
</if>
<if test="password != null and password != ''">
and password = #{password}
</if>
<if test="nickname != null and nickname != ''">
and nickname = #{nickname}
</if>
<if test="phone != null and phone != ''">
and phone = #{phone}
</if>
<if test="email != null and email != ''">
and email = #{email}
</if>
</where>
</select>
<!--新增所有列-->
<insert id="insert" keyProperty="id" useGeneratedKeys="true">
insert into user(username, password, nickname, phone, email)
values (#{username}, #{password}, #{nickname}, #{phone}, #{email})
</insert>
<insert id="insertBatch" keyProperty="id" useGeneratedKeys="true">
insert into user(username, password, nickname, phone, email)
values
<foreach collection="entities" item="entity" separator=",">
(#{entity.username}, #{entity.password}, #{entity.nickname}, #{entity.phone}, #{entity.email})
</foreach>
</insert>
<insert id="insertOrUpdateBatch" keyProperty="id" useGeneratedKeys="true">
insert into user(username, password, nickname, phone, email)
values
<foreach collection="entities" item="entity" separator=",">
(#{entity.username}, #{entity.password}, #{entity.nickname}, #{entity.phone}, #{entity.email})
</foreach>
on duplicate key update
username = values(username),
password = values(password),
nickname = values(nickname),
phone = values(phone),
email = values(email)
</insert>
<!--通过主键修改数据-->
<update id="update">
update user
<set>
<if test="username != null and username != ''">
username = #{username},
</if>
<if test="password != null and password != ''">
password = #{password},
</if>
<if test="nickname != null and nickname != ''">
nickname = #{nickname},
</if>
<if test="phone != null and phone != ''">
phone = #{phone},
</if>
<if test="email != null and email != ''">
email = #{email},
</if>
</set>
where id = #{id}
</update>
<!--通过主键删除-->
<delete id="deleteById">
delete
from user
where id = #{id}
</delete>
</mapper>
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