mybatis xml配置文件头

@Entity

<dependency>
<groupId>javax.persistence</groupId>
<artifactId>javax.persistence-api</artifactId>
<version>2.2</version> <!-- 请根据你的需要选择版本 -->
</dependency>

xml 配置文件

<?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.blockchain.mapper.EnterUserMapper">
<!-- 添加你的映射配置和 SQL 语句 -->
</mapper>