Hibernate4 Annotation实例

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hibernate.cfg.xml 配置~

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<?xml version='1.0' encoding='utf-8'?>  
<!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>  
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>  
        <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/test</property>  
        <property name="hibernate.connection.username">root</property>  
        <property name="hibernate.connection.password">123456</property>  
        <property name="hibernate.connection.pool_size">10</property>  
        <property name="show_sql">true</property>  
        <property name="dialect">org.hibernate.dialect.MySQL5Dialect</property>  
        <property name="hibernate.current_session_context_class">thread</property>  
        <property name="hbm2ddl.auto">create</property>  
    </session-factory>  
</hibernate-configuration>  

实体类

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package com.neal.entity;  
  
import java.io.Serializable;  
import java.util.Date;  
  
import javax.persistence.Column;  
import javax.persistence.Entity;  
import javax.persistence.GeneratedValue;  
import javax.persistence.GenerationType;  
import javax.persistence.Id;  
import javax.persistence.Temporal;  
import javax.persistence.TemporalType;  
  
@Entity  
public class User implements Serializable{  
    /** 
     *  
     */  
    private static final long serialVersionUID = 1L;  
    private int id;  
    private String name;  
    private Date birthday;  
      
    @Id @GeneratedValue(strategy=GenerationType.AUTO)  
    public int getId() {  
        return id;  
    }  
    public void setId(int id) {  
        this.id = id;  
    }  
    @Column(length=10)  
    public String getName() {  
        return name;  
    }  
    public void setName(String name) {  
        this.name = name;  
    }  
    @Temporal(TemporalType.DATE)  
    public Date getBirthday() {  
        return birthday;  
    }  
    public void setBirthday(Date birthday) {  
        this.birthday = birthday;  
    }  
      
      
      
}  

最后的测试类

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package junit.test;  
  
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.BeforeClass;  
import org.junit.Test;  
  
import com.neal.entity.User;  
  
public class HibernateTest {  
  
    private static SessionFactory sessionFactory;  
    @BeforeClass  
    public static void setUpBeforeClass() throws Exception {  
        Configuration cfg = new Configuration();      
        cfg.configure(); // 重要  
        ServiceRegistry sr = new ServiceRegistryBuilder().applySettings(cfg.getProperties()).buildServiceRegistry();  
        try {  
            sessionFactory = cfg.configure()  
                    .addAnnotatedClass(User.class)  
                    .buildSessionFactory(sr);  
        } catch (Exception e) {  
            // TODO Auto-generated catch block  
            e.printStackTrace();  
        }  
    }  
  
    @Test  
    public void test() {  
          
        Session session = sessionFactory.openSession();  
        Transaction tx = session.beginTransaction();  
        User user = new User();  
        user.setBirthday(new Date());  
        user.setName("hello");  
          
        session.persist(user);  
        tx.commit();  
        session.close();  
        System.out.println("end");  
    }  
  
}  

结果输出~

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2012-3-21 19:50:27 org.hibernate.annotations.common.Version <clinit>  
INFO: HCANN000001: Hibernate Commons Annotations {4.0.1.Final}  
2012-3-21 19:50:27 org.hibernate.Version logVersion  
INFO: HHH000412: Hibernate Core {4.1.1}  
2012-3-21 19:50:27 org.hibernate.cfg.Environment <clinit>  
INFO: HHH000206: hibernate.properties not found  
2012-3-21 19:50:27 org.hibernate.cfg.Environment buildBytecodeProvider  
INFO: HHH000021: Bytecode provider name : javassist  
2012-3-21 19:50:27 org.hibernate.cfg.Configuration configure  
INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml  
2012-3-21 19:50:27 org.hibernate.cfg.Configuration getConfigurationInputStream  
INFO: HHH000040: Configuration resource: /hibernate.cfg.xml  
2012-3-21 19:50:27 org.hibernate.cfg.Configuration doConfigure  
INFO: HHH000041: Configured SessionFactory: null  
2012-3-21 19:50:27 org.hibernate.cfg.Configuration configure  
INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml  
2012-3-21 19:50:27 org.hibernate.cfg.Configuration getConfigurationInputStream  
INFO: HHH000040: Configuration resource: /hibernate.cfg.xml  
2012-3-21 19:50:27 org.hibernate.cfg.Configuration doConfigure  
INFO: HHH000041: Configured SessionFactory: null  
2012-3-21 19:50:27 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure  
INFO: HHH000402: Using Hibernate built-in connection pool (not for production use!)  
2012-3-21 19:50:27 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure  
INFO: HHH000115: Hibernate connection pool size: 10  
2012-3-21 19:50:27 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure  
INFO: HHH000006: Autocommit mode: false  
2012-3-21 19:50:27 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure  
INFO: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost:3306/test]  
2012-3-21 19:50:27 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure  
INFO: HHH000046: Connection properties: {user=root, password=****}  
2012-3-21 19:50:28 org.hibernate.dialect.Dialect <init>  
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect  
2012-3-21 19:50:28 org.hibernate.engine.jdbc.internal.LobCreatorBuilder useContextualLobCreation  
INFO: HHH000423: Disabling contextual LOB creation as JDBC driver reported JDBC version [3] less than 4  
2012-3-21 19:50:28 org.hibernate.engine.transaction.internal.TransactionFactoryInitiator initiateService  
INFO: HHH000399: Using default transaction strategy (direct JDBC transactions)  
2012-3-21 19:50:28 org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory <init>  
INFO: HHH000397: Using ASTQueryTranslatorFactory  
2012-3-21 19:50:28 org.hibernate.tool.hbm2ddl.SchemaExport execute  
INFO: HHH000227: Running hbm2ddl schema export  
Hibernate: drop table if exists User  
Hibernate: create table User (id integer not null auto_increment, birthday date, name varchar(10), primary key (id))  
2012-3-21 19:50:28 org.hibernate.tool.hbm2ddl.SchemaExport execute  
INFO: HHH000230: Schema export complete  
Hibernate: insert into User (birthday, name) values (?, ?)  
end  