Getting started with Hibernate4

Getting started with Hibernate4
1. download the latest Hibernate2. install the Hibernate tool plug-in eclipse.

Download the latest luna plug-in
After installation, the new menu should include:

3. Create a New java Project

Add all jar packages in the downloaded/lib/required package in hibernate, and add the drivers connecting to the database.

4. Create a configuration file for hibernate. cfg. xml in the src directory (you can create it using the plug-in)

Write database information and some settings in xml

    
          
      
           
            
    
     
JavaTest
            
    
     
123456
            
    
     
Com. mysql. jdbc. Driver
            
    
     
Jdbc: mysql: // localhost: 3306/sample
            
            
            
    
     
Org. hibernate. dialect. MySQLInnoDBDialect
            
            
    
     
True
            
            
    
     
True
            
            
    
     
Update
            
            
         
    
       
  

5. Create News class, get set, constructor, etc...

package com.qhn;import java.sql.Date;public class News { private Integer id; private String title; private String author; private Date date; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public String getAuthor() { return author; } public void setAuthor(String author) { this.author = author; } public Date getDate() { return date; } public void setDate(Date date) { this.date = date; } @Override public String toString() { return "News [id=" + id + ", title=" + title + ", author=" + author + ", date=" + date + "]"; } public News(String title, String author, Date date) { super(); this.title = title; this.author = author; this.date = date; } public News() { }}

6. Use a plug-in to generate the. hbm. xml file of News.

<?xml version="1.0"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><!-- Generated May 14, 2015 8:33:47 PM by Hibernate Tools 3.4.0.CR1 -->
7. Create a test class
Package com. qhn; import static org. junit. assert. *; import java. SQL. date; import org. hibernate. *; import org. hibernate. cfg. configuration; import org. hibernate. service. serviceRegistry; import org. hibernate. service. serviceRegistryBuilder; import org. junit. test; @ SuppressWarnings ("deprecation") public class HibernateTest {@ Test public void test () {// 1. sessionfecw.sessionfactory SessionFactory = null; Configuration configuration = new Configuration (). configure (); ServiceRegistry serviceRegistry = new ServiceRegistryBuilder (). applySettings (configuration. getProperties ()). buildServiceRegistry (); sessionFactory = configuration. buildSessionFactory (serviceRegistry); // 2. sesson Session session = sessionFactory. openSession (); // 3. enable Transaction transaction Transaction = session. beginTransaction (); // 4. run the save operation News news = new News ("java", "HI", new Date (new java. util. date (). getTime (); session. save (news); // 5. submit transaction. commit (); // 6. disable Session. close (); // 7. disable sessionfecsponsessionfactory. close ();}}
After running, you can find the newly created table and insert data in the corresponding database.
The file structure of the entire project is as follows:
├── bin│ ├── com│ │ └── qhn│ │ ├── HibernateTest.class│ │ ├── News.class│ │ └── News.hbm.xml│ └── hibernate.cfg.xml├── lib│ ├── antlr-2.7.7.jar│ ├── dom4j-1.6.1.jar│ ├── hibernate-commons-annotations-4.0.5.Final.jar│ ├── hibernate-core-4.3.9.Final.jar│ ├── hibernate-jpa-2.1-api-1.0.0.Final.jar│ ├── jandex-1.1.0.Final.jar│ ├── javassist-3.18.1-GA.jar│ ├── jboss-logging-3.1.3.GA.jar│ ├── jboss-logging-annotations-1.2.0.Beta1.jar│ ├── jboss-transaction-api_1.2_spec-1.0.0.Final.jar│ └── mysql-connector-java-5.1.34-bin.jar└── src ├── com │ └── qhn │ ├── HibernateTest.java │ ├── News.hbm.xml │ └── News.java └── hibernate.cfg.xml