如何使用myBatis模拟返回主键的插入方法

// 实体类
public class User {
    private Long id;
    private String name;
    // 省略getter和setter方法
}

// Mapper接口
public interface UserMapper {
    @Insert("INSERT INTO user(name) VALUES(#{name})")
    @Options(useGeneratedKeys = true, keyProperty = "id")
    void insertUser(User user);
}

// Mapper XML文件
<!-- userMapper.xml -->
<mapper namespace="com.example.mapper.UserMapper">
    <insert id="insertUser" parameterType="com.example.entity.User">
        <selectKey keyProperty="id" resultType="java.lang.Long" order="AFTER">
            SELECT LAST_INSERT_ID()
        </selectKey>
        INSERT INTO user(name) VALUES(#{name})
    </insert>
</mapper>

// 测试代码
public class MyBatisTest {
    public static void main(String[] args) {
        SqlSessionFactory sqlSessionFactory = ... // 创建SqlSessionFactory
        try (SqlSession session = sqlSessionFactory.openSession()) {
            UserMapper userMapper = session.getMapper(UserMapper.class);
            User user = new User();
            user.setName("John");
            userMapper.insertUser(user);
            System.out.println("插入的主键值为：" + user.getId());
        }
    }
}