diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
new file mode 100644
index 0000000..b753da7
--- /dev/null
+++ b/src/main/resources/application.properties
@@ -0,0 +1,21 @@
+server.port=8080
+spring.datasource.url=jdbc:mysql://localhost:3306/pt
+spring.datasource.username=root
+spring.datasource.password=root
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+
+mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl
+
+
+# Mail configuration
+spring.mail.password=tljnebonhzhqecda
+spring.mail.username=2370523716@qq.com
+spring.mail.host=smtp.qq.com
+spring.mail.properties.mail.smtp.ssl.enable=true
+spring.mail.properties.mail.smtp.auth=true
+spring.mail.properties.mail.smtp.starttls.enable=true
+
+
+spring.jpa.enabled=false
+spring.jpa.hibernate.ddl-auto=none
+spring.jpa.open-in-view=false
diff --git a/src/main/resources/mapper/UserMapper.xml b/src/main/resources/mapper/UserMapper.xml
new file mode 100644
index 0000000..f03ab0a
--- /dev/null
+++ b/src/main/resources/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>
diff --git a/src/main/resources/mapper/VerificationTokenMapper.xml b/src/main/resources/mapper/VerificationTokenMapper.xml
new file mode 100644
index 0000000..53b19a5
--- /dev/null
+++ b/src/main/resources/mapper/VerificationTokenMapper.xml
@@ -0,0 +1,10 @@
+<?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.VerificationTokenMapper">
+    <!-- 通过 token 和 email 查询 VerificationToken -->
+    <select id="findByTokenAndEmail" resultType="com.example.myproject.entity.VerificationToken">
+        SELECT * FROM verification_token
+        WHERE token = #{token} AND email = #{email}
+    </select>
+</mapper>