mybatis cannot connect to the database

in the entity classes will be a problem on the picture < br / >

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```java
public class MyBatisDemo {
    public static void main(String[] args) throws IOException {
        //1.加载MyBatis的核心配置文件,获 SqLSessionFactory
        String resource = "mybatis-config.xml";
        InputStream inputStream = Resources.getResourceAsStream(resource);
        SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);

        //2.获取SqlSessionFactory对象
        SqlSession sqlSession = sqlSessionFactory.openSession();

        //3.执行sql
        List<User> users = sqlSession.selectList("test.selectAll");

        System.out.println(users);
        sqlSession.close();
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    
    <appender name="Console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>[%level] %blue(%d{HH:mm:ss.SSS}) %cyan([%thread]) %boldGreen(%logger{15}) - %msg %n</pattern>
        </encoder>
    </appender>

    <logger name="com.itheima" level="DEBUG" additivity="false">
        <appender-ref ref="Console"/>
    </logger>


    
    <root level="DEBUG">
        <appender-ref ref="Console"/>
    </root>
</configuration>

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "https://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql:///mybatis?useSSL=false"/>
                <property name="username" value="root"/>
                <property name="password" value="1324"/>
            </dataSource>
        </environment>
    </environments>
    <mappers>
        
        <mapper resource="UserMapper.xml"/>
    </mappers>
</configuration>

```xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "https://mybatis.org/dtd/mybatis-3-mapper.dtd">


<mapper namespace="test">
    <select id="selectAll" resultType="com.itheima.pojo.User">
        select * from tb_user;
    </select>
</mapper>

The error message is as follows

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