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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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<mapper namespace="com.campus.mapper.CampusMapper">
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<!--用户信息-->
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<resultMap id="user_List" type="User">
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<id column="username" property="username"/>
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<result column="password" property="password"/>
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</resultMap>
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<!--查询用户-->
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<select id="userLogin" resultMap="user_List" parameterType="User">
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select
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*
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from user where username = #{username} and password = #{password}
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<!--where>
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<if test="username != null"> and username = #{username}</if>
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<if test="passwork != null"> and passwork = #{passwork}</if>
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</where-->
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</select>
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<!--用户注册-->
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<insert id="newUser" parameterType="User">
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insert into user value
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(#{username},#{password})
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</insert>
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<!--用户密码更新-->
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<update id="userUpdate" parameterType="User">
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update user set password = #{password} where username=#{username}
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</update>
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<!--物品信息-->
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<resultMap id="goods_List" type="Goods">
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<id column="gid" property="gid"/>
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<result column="username" property="username"/>
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<result column="type" property="type"/>
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<result column="price" property="price"/>
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<result column="img" property="img"/>
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<result column="commit" property="commit"/>
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<result column="phone" property="phone"/>
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</resultMap>
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<!--查找物品-->
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<select id="goodsSelect" resultMap="goods_List" parameterType="Goods">
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select * from goods
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<where>
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<if test="type != null">and type=#{type}</if>
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<if test="gid != 0">and gid =#{gid}</if>
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<if test="username != null">and username=#{username}</if>
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</where>
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order by gid desc
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</select>
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<!--物品信息更新-->
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<update id="goodsUpdate" parameterType="Goods">
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update goods
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<trim prefix="set" suffixOverrides=",">
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<if test="type != null">type=#{type},</if>
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<if test="img != null">img=#{img},</if>
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<if test="price != null">price=#{price},</if>
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<if test="commit != null">commit =#{commit},</if>
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<if test="phone != null">phone =#{phone}</if>
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</trim>
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where gid=#{gid}
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</update>
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<!--删除物品-->
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<delete id="goodsDelete" parameterType="Goods">
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delete from goods where gid=#{gid}
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</delete>
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<!--新增物品记录-->
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<!--useGeneratedKeys="true"对应自增字段，keyProperty="id" 对应自己定义的类属性 ,keyColumn="id" 对应数据库表字段-->
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<insert id="goodsInter" parameterType="Goods" useGeneratedKeys="true" keyProperty="gid" keyColumn="gid">
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insert into goods values
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(#{username},#{price},#{type},#{commit},#{img},#{gid},#{phone})
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</insert>
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</mapper>
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