种子，促销
Change-Id: I0ce919ce4228dcefec26ef636bacd3298c0dc77a
diff --git a/target/classes/mapper/UserMapper.xml b/target/classes/mapper/UserMapper.xml
new file mode 100644
index 0000000..f03ab0a
--- /dev/null
+++ b/target/classes/mapper/UserMapper.xml
@@ -0,0 +1,21 @@
+<?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.myproject.mapper.UserMapper">
+ <!-- 根据用户名查找用户 -->
+ <select id="selectByUsername" parameterType="string" resultType="com.example.myproject.entity.User">
+ SELECT * FROM user WHERE username = #{username}
+ </select>
+ <!-- 根据用户名和密码查找用户 -->
+ <select id="selectByUsernameAndPassword" parameterType="map" resultType="com.example.myproject.entity.User">
+ SELECT * FROM user WHERE username = #{username} AND password = #{password}
+ </select>
+ <!-- 根据邮箱查找用户 -->
+ <select id="selectByEmail" parameterType="string" resultType="com.example.myproject.entity.User">
+ SELECT * FROM user WHERE email = #{email}
+ </select>
+ <!-- 根据用户名包含查找用户 -->
+ <select id="selectByUsernameContaining" parameterType="string" resultType="com.example.myproject.entity.User">
+ SELECT * FROM user WHERE username LIKE CONCAT('%', #{name}, '%')
+ </select>
+</mapper>