Detailed explanation of the basic configuration of hibernate5.2

Goal: Add the Student entity object to the database

1. First you need to download three things: hibernate, slf4j, mysql.

2. Take their packages and import them into the newly created project. The version I have here is: all the files in required in the lib directory in hibernate-release-5.2.10 and the ones under slf4j-1.7.25. slf4j-nop-1.7.25.jar mysql’s mysql-connector-java-5.1.42-bin.jar

3. Configure hibernate.cfg.xml under src (it is recommended to go directly to the document to copy and then change it)

<?xml version=&#39;1.0&#39; encoding=&#39;utf-8&#39;?>
<!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>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost/text02</property><property name="connection.username">root</property>
<property name="connection.password">6530033197</property>
<!-- JDBC connection pool (use the built-in) -->
<!--
<property name="connection.pool_size">1</property>
-->
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Enable Hibernate&#39;s automatic session context management -->
<!-- <property name="current_session_context_class">thread</property> -->
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<!--
<property name="hbm2ddl.auto">update</property>
-->
<mapping resource="student/Student.hbm.xml"/>
</session-factory>
</hibernate-configuration>

4. Create a student table in mysql, field: id age name

5. Create your own entity class and build it under src Package student, and then create Class: Student.java

package student;public class Student {private int id;private int age;private String name;public int getId() {return id;
}public void setId(int id) {this.id = id;
}public int getAge() {return age;
}public void setAge(int age) {this.age = age;
}public String getName() {return name;
}public void setName(String name) {this.name = name;
}public Student(int id, int age, String name) {super();this.id = id;this.age = age;this.name = name;
}public Student() {// TODO Auto-generated constructor stub}

}

6. Configure the file under the corresponding package, student: Student.hbm.xml

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

<hibernate-mapping package="student">
<class name="Student" table="student">
<id name="id" column="id">
</id>
<property name="name" type="string" column="name"/>
<property name="age" type="int" column="age"/>
</class>
</hibernate-mapping>

7. Create test class: StudentText.java

package student;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.cfg.Configuration;public class StudentText {public static void main(String[] args) {
Student stu = new Student();
stu.setId(4);
stu.setName("小明");
stu.setAge(12);

Configuration con = new Configuration();
SessionFactory sf = con.configure().buildSessionFactory();
Session s = sf.openSession();
s.beginTransaction();
s.save(stu);
s.getTransaction().commit();
s.close();
sf.close();

}

}

Output results ,Finish:

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