Hibernate4 .1.2 Annotation实例

步骤
（1）添加jar包,尤其要找对oracle驱动jar包

（2）hibernate.cfg.xml 配置

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

	<session-factory>
		<property name="connection.username">testuser</property>
		<property name="connection.url">
			jdbc:oracle:thin:@127.0.0.1:1521:ORCL
		</property>
		<property name="dialect">
			org.hibernate.dialect.Oracle10gDialect
		</property>
		<property name="connection.password">testuser</property>
		<property name="connection.driver_class">
			oracle.jdbc.driver.OracleDriver
		</property>
		<property name="connection.autocommit">false</property>
		<property name="hibernate.connection.pool_size">10</property> 
		<property name="hibernate.current_session_context_class">thread</property>  
        <property name="hbm2ddl.auto">update</property>
		<property name="show_sql">true</property>
		<property name="hibernate.temp.use_jdbc_metadata_defaults">false</property>
	</session-factory>

</hibernate-configuration>

（3）建立实体对象

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 C_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;  
    }        
} 

（4）测试

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.C_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(C_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();  
        C_user user = new C_user();  
        user.setBirthday(new Date());  
        user.setName("xiaohong");  
          
        session.persist(user);  
        tx.commit();  
        session.close();  
        System.out.println("end");  
    }  
  
} 

（5）结果

15:57:08,208  INFO Version:37 - HCANN000001: Hibernate Commons Annotations {4.0.1.Final}
15:57:08,216  INFO Version:41 - HHH000412: Hibernate Core {4.1.2.Final}
15:57:08,217  INFO Environment:239 - HHH000206: hibernate.properties not found
15:57:08,219  INFO Environment:342 - HHH000021: Bytecode provider name : javassist
15:57:08,237  INFO Configuration:1924 - HHH000043: Configuring from resource: /hibernate.cfg.xml
15:57:08,237  INFO Configuration:1943 - HHH000040: Configuration resource: /hibernate.cfg.xml
15:57:08,272  WARN DTDEntityResolver:74 - HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!
15:57:08,291  INFO Configuration:2065 - HHH000041: Configured SessionFactory: null
15:57:08,318  INFO Configuration:1924 - HHH000043: Configuring from resource: /hibernate.cfg.xml
15:57:08,318  INFO Configuration:1943 - HHH000040: Configuration resource: /hibernate.cfg.xml
15:57:08,320  WARN DTDEntityResolver:74 - HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!
15:57:08,326  INFO Configuration:2065 - HHH000041: Configured SessionFactory: null
15:57:08,440  INFO DriverManagerConnectionProviderImpl:96 - HHH000402: Using Hibernate built-in connection pool (not for production use!)
15:57:08,442  INFO DriverManagerConnectionProviderImpl:129 - HHH000115: Hibernate connection pool size: 10
15:57:08,442  INFO DriverManagerConnectionProviderImpl:132 - HHH000006: Autocommit mode: false
15:57:08,443  INFO DriverManagerConnectionProviderImpl:146 - HHH000401: using driver [oracle.jdbc.driver.OracleDriver] at URL [jdbc:oracle:thin:@127.0.0.1:1521:ORCL]
15:57:08,443  INFO DriverManagerConnectionProviderImpl:151 - HHH000046: Connection properties: {user=testuser, password=****, autocommit=false}
15:57:08,465  INFO Dialect:122 - HHH000400: Using dialect: org.hibernate.dialect.Oracle10gDialect
15:57:08,473  INFO LobCreatorBuilder:85 - HHH000422: Disabling contextual LOB creation as connection was null
15:57:08,483  INFO TransactionFactoryInitiator:68 - HHH000399: Using default transaction strategy (direct JDBC transactions)
15:57:08,486  INFO ASTQueryTranslatorFactory:48 - HHH000397: Using ASTQueryTranslatorFactory
15:57:08,651  INFO SchemaUpdate:182 - HHH000228: Running hbm2ddl schema update
15:57:08,651  INFO SchemaUpdate:193 - HHH000102: Fetching database metadata
15:57:09,066  INFO SchemaUpdate:205 - HHH000396: Updating schema
15:57:09,154  INFO TableMetadata:65 - HHH000261: Table found: TESTUSER.C_USER
15:57:09,154  INFO TableMetadata:66 - HHH000037: Columns: [id, birthday, name]
15:57:09,155  INFO TableMetadata:68 - HHH000108: Foreign keys: []
15:57:09,155  INFO TableMetadata:69 - HHH000126: Indexes: [sys_c0010874]
15:57:09,155  INFO SchemaUpdate:240 - HHH000232: Schema update complete
Hibernate: select hibernate_sequence.nextval from dual
Hibernate: insert into C_user (birthday, name, id) values (?, ?, ?)
end