Hibernate's HelloWorld implementation

Start by creating a new Web project and then creating a new Lib folder and importing the appropriate jar packages

Hibernate Development Steps:

1. Create Hibernate profile

2. Create a Persistence class

3. Creating an Object-relational mapping file

As follows:

The corresponding jar packages are as follows:

(Jar package goes to hibernate file to find)

The Hibernate.cfg.xml code is as follows:

1<?xml version= "1.0" encoding= "UTF-8"?>2<! DOCTYPE hibernate-Configuration Public3"-//hibernate/hibernate Configuration DTD 3.0//en"4"Http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd" >56<session-factory>7<!--Configure Hibernate basic information-8<property name= "Connection.username" >root</property>9<property name= "Connection.password" >root</property>Ten<property name= "Connection.driver_class" >com.mysql.jdbc.Driver</property> One<property name= "Connection.url" >jdbc:mysql:///hibernate1</property> A       -<!--Hibernate basic configuration-- -<!--Database dialect--- the<property name= "dialect" >org.hibernate.dialect.MySQLDialect</property> -  -<!--whether to print SQL-- -<property name= "Show_sql" >true</property> +<!--whether to format SQL-- -<property name= "Format_sql" >true</property> +<!--policies for generating tables-- A<property name= "Hbm2ddl.auto" >update</property> at       -       -       -<!--need to associate the mapping file-- -<mapping resource= "Com/nzx/hibernate/news.hbm.xml"/> -       in</session-factory> -
The Persistence class news code is as follows:
1  Packagecom.nzx.hibernate;2 3 Importjava.util.Date;4 5 /**6  * @authorZxN7  * @versioncreated: January 3, 2016 PM 2:13:578 * Class Description9  */Ten classNews { One     PrivateInteger ID; A     PrivateString title; -     PrivateString author; -     Privatedate date; the      PublicNews () { -         Super(); -         //TODO auto-generated Constructor stub -     } +      PublicNews (string title, string author, date date) { -         Super(); +      A          This. title =title; at          This. Author =author; -          This. Date =date; -     } -      PublicInteger getId () { -         returnID; -     } in      Public voidsetId (Integer id) { -          This. ID =ID; to     } +      PublicString GetTitle () { -         returntitle; the     } *      Public voidSettitle (String title) { $          This. title =title;Panax Notoginseng     } -      PublicString Getauthor () { the         returnauthor; +     } A      Public voidSetauthor (String author) { the          This. Author =author; +     } -      PublicDate getDate () { $         returndate; $     } -      Public voidsetDate (date date) { -          This. Date =date; the     } - @OverrideWuyi      PublicString toString () { the         return"News [id=] + ID +", title= "+ title +", author= "+author -+ ", date=" + Date + "]"; Wu     } -      About      $}
The Object relational mapping file News.hbm.xml code is as follows:
1<?xml version= "1.0"?>2<! DOCTYPE hibernate-mapping Public "-//hibernate/hibernate mapping DTD 3.0//en"3"Http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >4<!--Generated 2016-2-29 14:33:38 by Hibernate Tools 3.4.0.CR1--56<className= "Com.nzx.hibernate.News" table= "News" >7<id name= "id" type= "Java.lang.Integer" >8<column name= "ID"/>9<generatorclass= "Native"/>Ten</id> One<property name= "title" Type= "Java.lang.String" > A<column name= "TITLE"/> -</property> -<property name= "Author" type= "java.lang.String" > the<column name= "AUTHOR"/> -</property> -<property name= "Date" type= "Java.util.Date" > -<column name= "DATE"/> +</property> -</class> +
The JUnit test class Hibernatetest code is as follows:
1  Packagecom.nzx.hibernate;2 3 Importjava.util.Date;4 5 Importorg.hibernate.Session;6 Importorg.hibernate.SessionFactory;7 Importorg.hibernate.Transaction;8 Importorg.hibernate.cfg.Configuration;9 ImportOrg.hibernate.service.ServiceRegistry;Ten ImportOrg.hibernate.service.ServiceRegistryBuilder; One Importorg.junit.Test; A  -  -  Public classHibernatetest { the  - @Test -      Public voidTest () { -         //1. Create a Sessionfactory object +Sessionfactory sessionfactory =NULL; -          +         //1). Create a Configuration object: Basic configuration information and object-relational mapping information for hibernate AConfiguration Configuration =NewConfiguration (). Configure (); at         //2). Create a Servicerigistry object hibernate any configuration and services need to be registered in this object to take effect -          -Serviceregistry serviceregistry= -                  NewServiceregistrybuilder (). Applysettings (Configuration.getproperties ()). Buildserviceregistry (); -                          -Sessionfactory =configuration.buildsessionfactory (serviceregistry);  in         //2. Create a Session object -Session session =sessionfactory.opensession (); to         //3. Turn on the transaction +Transaction Transaction =session.begintransaction (); -         //4. Perform a save Operation theNews news =NewNews ("Java", "EE",NewDate (Newjava.util.Date (). GetTime ( )); * Session.save (news); $         //5. Commit a transactionPanax Notoginseng transaction.commit (); -          the         //6. Close Session + session.close (); A         //7. Close the Sessionfactory object the sessionfactory.close (); +          -          $     } $  -}
Executes the test method, creates a new table and appears with the inserted statement
Hibernate:
Insert
Into
NEWS
(TITLE, AUTHOR, DATE)
Values
(?, ?, ?)
Hibernate's HelloWorld implementation