hibernate3学习笔记(一)

 下载最新hibernate的资源：http://www.hibernate.org/6.html  本文使用最新的 3.3.0 SP1 版本

所需jar包列表如下：

antlr-2.7.6.jar
commons-collections-3.1.jar
commons-logging-1.1.jar
dom4j-1.6.1.jar
ehcache-1.2.3.jar
ejb3-persistence.jar
hibernate3.jar
hibernate-annotations.jar
hibernate-commons-annotations.jar
hibernate-validator.jar
javassist-3.4.GA.jar
jta-1.1.jar
log4j.jar
mysql-connector-java-5.1.6-bin.jar
slf4j-api-1.4.2.jar
slf4j-log4j12.jar

 

hibernate.cfg.xml配置文件：

1. <?xml version='1.0' encoding='UTF-8'?>
2. <!DOCTYPE hibernate-configuration PUBLIC
3.     "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
4.     "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
6. <hibernate-configuration>
8.     <session-factory>
9.         <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
10.         <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/hb3demo</property>
11.         <property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>
12.         <property name="connection.username">root</property>
13.         <property name="connection.password">root</property>
14.         <property name="jdbc.fetch_size">50</property>
15.         <property name="jdbc.batch_size">30</property>
16.         <property name="show_sql">true</property>
17.         <property name="use_outer_join">true</property>
18.         <property name="transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</property>
19.         <property name="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</property>
20.         <property name="hibernate.cache.use_query_cache">true</property>
21.         
22.         <mapping resource="com/hb3/pack_01/model/User.hbm.xml" />
24.     </session-factory>
26. </hibernate-configuration>

log4j.properties

1. log4j.rootLogger=warn, stdout
3. log4j.appender.stdout=org.apache.log4j.ConsoleAppender
4. log4j.appender.stdout.Target=System.out
5. log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
6. log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

User.java

1. package com.hb3.pack_01.model;
3. public class User {
4.     
5.     private Integer id;
6.     private String name;
7.     private Integer age;
9.     public Integer getId() {
10.         return id;
11.     }
12.     public void setId(Integer id) {
13.         this.id = id;
14.     }
15.     public String getName() {
16.         return name;
17.     }
18.     public void setName(String name) {
19.         this.name = name;
20.     }
21.     public Integer getAge() {
22.         return age;
23.     }
24.     public void setAge(Integer age) {
25.         this.age = age;
26.     }
27. }

User.hbm.xml

1. <?xml version="1.0" encoding="UTF-8"?>
3. <!DOCTYPE hibernate-mapping PUBLIC
4.     "-//Hibernate/Hibernate Mapping DTD 3.0//EN" 
5.     "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
7. <hibernate-mapping>
8.     <class name="com.hb3.pack_01.model.User" table="user">
9.         <id name="id" column="id" type="java.lang.Integer">
10.             <generator class="native" />
11.         </id>
12.         
13.         <property name="name" column="name" type="java.lang.String" />
14.         
15.         <property name="age" column="age" type="java.lang.Integer" />
16.     </class>
17. </hibernate-mapping>

BusinessService.java

1. package com.hb3.pack_01;
3. import org.hibernate.Session;
4. import org.hibernate.SessionFactory;
5. import org.hibernate.Transaction;
6. import org.hibernate.cfg.Configuration;
8. import com.hb3.pack_01.model.User;
10. public class BusinessService {
12.     public static void main(String[] args) {
13.         
14.         Configuration config = new Configuration().configure();
15.         SessionFactory sessionFactory = config.buildSessionFactory();      
16.         Session session = sessionFactory.openSession();
17.         
18.         User user = new User();
19.         user.setName("shenbin");
20.         user.setAge(new Integer(28));       
21.         
22.         Transaction tx = session.beginTransaction(); 
23.         session.save(user);          
24.         tx.commit();
25.         
26.         session.close();
27.         sessionFactory.close();
28.     }
29. }

在MySQL数据库中新建数据库hb3demo，并执行如下DDL

1. CREATE TABLE user (
2.     id INT(11) NOT NULL auto_increment PRIMARY KEY,
3.     name VARCHAR(100) NOT NULL default '',
4.     age INT
5. );

这样就可以使用ｈｉｂｅｒｎａｔｅ向数据库插入数据了。