如何使用

导入依赖

<dependencies><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.19</version></dependency><dependency><groupId>org.hibernate</groupId><artifactId>hibernate-core</artifactId><version>5.4.10.Final</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.18.10</version></dependency>
</dependencies>

创建hibernate配置文件

SessionFactory：针对单个数据库映射经过编译的内存镜像⽂件，将数据库转换为⼀个 Java 可以识别的镜像⽂件。
构建 SessionFactory ⾮常耗费资源，所以通常⼀个⼯程只需要创建⼀个 SessionFactory。

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC"-//Hibernate/Hibernate Configuration DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration><session-factory><!-- 数据源配置 --><property name="connection.username">root</property><property name="connection.password">root</property><property
name="connection.driver_class">com.mysql.cj.jdbc.Driver</property><property name="connection.url">jdbc:mysql://localhost:3306/test?
useUnicode=true&amp;characterEncoding=UTF-8</property><!-- C3P0 --><property name="hibernate.c3p0.acquire_increment">10</property><property name="hibernate.c3p0.idle_test_period">10000</property><property name="hibernate.c3p0.timeout">5000</property><property name="hibernate.c3p0.max_size">30</property><property name="hibernate.c3p0.min_size">5</property><property name="hibernate.c3p0.max_statements">10</property><!-- 数据库⽅⾔ --><property name="dialect">org.hibernate.dialect.MySQLDialect</property><!-- 打印SQL --><property name="show_sql">true</property><!-- 格式化SQL --><property name="format_sql">true</property><!-- 是否⾃动⽣成数据库 --><property name="hibernate.hbm2ddl.auto"></property></session-factory>
</hibernate-configuration>