IDEA 2020.3 configuration creates Hibernate

create project

Create a new web project, pay attention to check the corresponding Hibernate library file.

Add MySQL database driver

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.22</version>
        </dependency>

pom.xml adds the above dependencies. Then refresh the Maven project to get the database driver.

Connect to the database

Add the Hibernate framework

Check the following content and use the library to select the previously selected Hibernate library dependency

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When selecting next, pay attention to the fact that the following two cannot be used at the same time when there is a composite primary key

Modify the configuration file

Modify the generated hibernate.cfg.xml

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <property name="connection.url">jdbc:mysql://localhost:3306/library2?serverTimezone=GMT%2b8&amp;characterEncoding=utf-8</property>
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.username">root</property>
        <property name="connection.password">123</property>
        <property name="show_sql">true</property>
        <property name="format_sql">true</property>
        <mapping class="com.example.demo2.BookEntity"/>
        <mapping class="com.example.demo2.BorrowEntity"/>
        <mapping class="com.example.demo2.UserEntity"/>

    </session-factory>
</hibernate-configuration>

Run auto-generated test functions

Test success