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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE mapper
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PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<!-- 商家表数据映射文件 -->
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<mapper namespace="com.example.mapper.BusinessMapper">
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<!-- 定义商家表基础字段列表 -->
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<sql id="Base_Column_List">
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id,username,password,name,phone,email,avatar,role,description,status
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</sql>
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<!-- 查询所有商家（支持条件查询） -->
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<select id="selectAll" resultType="com.example.entity.Business">
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select
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<include refid="Base_Column_List" />
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from business
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<where>
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<if test="id != null"> and id= #{id}</if>
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<if test="username != null"> and username like concat('%', #{username}, '%')</if> <!-- 用户名模糊查询 -->
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<if test="password != null"> and password= #{password}</if>
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<if test="name != null"> and name= #{name}</if>
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<if test="phone != null"> and phone= #{phone}</if>
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<if test="email != null"> and email= #{email}</if>
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<if test="avatar != null"> and avatar= #{avatar}</if>
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<if test="role != null"> and role= #{role}</if>
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<if test="description != null"> and description= #{description}</if> <!-- 商家描述 -->
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<if test="status != null"> and status= #{status}</if> <!-- 商家状态 -->
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</where>
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</select>
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<!-- 根据ID查询单个商家 -->
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<select id="selectById" resultType="com.example.entity.Business">
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select
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<include refid="Base_Column_List" />
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from business
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where id = #{id}
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</select>
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<!-- 根据ID删除商家 -->
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<delete id="deleteById">
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delete from business
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where id = #{id}
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</delete>
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<!-- 新增商家（动态插入非空字段） -->
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<insert id="insert" parameterType="com.example.entity.Business" useGeneratedKeys="true">
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insert into business
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<trim prefix="(" suffix=")" suffixOverrides=",">
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<if test="id != null">id,</if>
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<if test="username != null">username,</if>
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<if test="password != null">password,</if>
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<if test="name != null">name,</if>
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<if test="phone != null">phone,</if>
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<if test="email != null">email,</if>
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<if test="avatar != null">avatar,</if>
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<if test="role != null">role,</if>
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<if test="description != null">description,</if> <!-- 商家描述 -->
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<if test="status != null">status,</if> <!-- 商家状态 -->
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</trim>
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<trim prefix="values (" suffix=")" suffixOverrides=",">
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<if test="id != null">#{id},</if>
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<if test="username != null">#{username},</if>
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<if test="password != null">#{password},</if>
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<if test="name != null">#{name},</if>
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<if test="phone != null">#{phone},</if>
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<if test="email != null">#{email},</if>
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<if test="avatar != null">#{avatar},</if>
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<if test="role != null">#{role},</if>
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<if test="description != null">#{description},</if>
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<if test="status != null">#{status},</if>
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</trim>
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</insert>
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<!-- 根据ID修改商家信息（动态更新非空字段） -->
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<update id="updateById" parameterType="com.example.entity.Business">
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update business
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<set>
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<if test="username != null">
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username = #{username},
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</if>
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<if test="password != null">
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password = #{password},
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</if>
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<if test="name != null">
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name = #{name},
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</if>
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<if test="phone != null">
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phone = #{phone},
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</if>
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<if test="email != null">
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email = #{email},
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</if>
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<if test="avatar != null">
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avatar = #{avatar},
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</if>
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<if test="role != null">
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role = #{role},
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</if>
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<if test="description != null">
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description = #{description}, <!-- 商家描述 -->
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</if>
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<if test="status != null">
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status = #{status}, <!-- 商家状态 -->
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</if>
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</set>
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where id = #{id}
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</update>
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</mapper> |
