hibernate注解mysql

import javax.persistence.*;

@Entity
@Table(name = "user")
public class User {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @Column(name = "username", nullable = false, unique = true)
    private String username;

    @Column(name = "password", nullable = false)
    private String password;

    // Getters and Setters
}

<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <!-- 数据库连接配置 -->
        <property name="connection.driver_class">com.mysql.cj.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost:3306/mydatabase</property>
        <property name="connection.username">root</property>
        <property name="connection.password">password</property>

        <!-- 其他配置 -->
        <property name="dialect">org.hibernate.dialect.MySQL8Dialect</property>
        <property name="show_sql">true</property>
        <property name="hbm2ddl.auto">update</property>

        <!-- 实体类扫描 -->
        <mapping class="com.example.User"/>
    </session-factory>
</hibernate-configuration>