Hibernate uses JUnit for testing

A Junit common annotation

@Test: Test method

@Before: initialization method

@After: release resources

 

Second, create a test class StudentsTest

 

Three code skeleton to access database through Hibernate API

 

 

Four test code

import java.util.Date;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
// test class
public class StudentsTest {
        
        private SessionFactory sessionFactory;
        private Session session;
        private Transaction transaction;
        @Before
        public void init(){
            // create configuration object  
            Configuration config = new Configuration().configure();
            //config.addClass(Students.class);
            // create service registration object
            ServiceRegistry serviceRegistery = new ServiceRegistryBuilder().applySettings(config.getProperties()).buildServiceRegistry();
            // create session factory object
            sessionFactory = config.buildSessionFactory(serviceRegistery);
            // create session object
            session = sessionFactory.openSession();
            // start transaction
            transaction = session.beginTransaction();
        }
        
        @After
        public void destory(){
            // commit the transaction
            transaction.commit();
            // close the session
            session.close();
            // close the session factory
            sessionFactory.close();
        }
        
        @Test
        public void testSaveStudents () {
                Students s= new Students(1,"Zhang Sanfeng","Male",new Date(),"Wudang Mountain");
            session.save(s);
        }
}

 

Five test outputs

Hibernate:

    drop table if exists STUDENTS

Hibernate:

    create table STUDENTS (

        SID integer not null,

        SNAME varchar(255),

        GENDER varchar(255),

        BIRTHDAY datetime,

        ADDRESS varchar(255),

        primary key (SID)

    )

September 17, 2017 3:31:29 pm org.hibernate.tool.hbm2ddl.SchemaExport execute

INFO: HHH000230: Schema export complete

Hibernate:

    insert

    into

        STUDENTS

        (SNAME, GENDER, BIRTHDAY, ADDRESS, SID)

    values

        (?, ?, ?, ?, ?)

 

Six test results