Hibernate3参考手册内容

首先需要的包：

antlr-2.7.6.jar

asm.jar

asm-attrs.jar

cglib-2.1.3.jar

commons-collentions-2.1.1.jar

commons-logging-1.0.4.jar

dom4j-1.6.1.jar

ehcache-1.2.3.jar

jta.jar

log4j-1.2.11.jar

hibernate.jar

hsqldb.jar

mysql-connector-java-5.0.3-bin.jar

1。////////////////////////////////////////要持久化处理的类Event

package events;

import java.util.*;

public class Event {

private Long id;

private String title;

private Date date;

public Long getId() {

return id;

}

//注意是private，原因是我们一般不去处理这个id的

private void setId(Long id) {

this.id = id;

}

public Date getDate() {

return date;

}

public void setDate(Date date) {

this.date = date;

}

public String getTitle() {

return title;

}

public void setTitle(String title) {

this.title = title;

}

}

2。/////////////////////////////////////////////////////Event类的数据库匹配文件Event.hbm.xml

<?xml version="1.0" encoding="GBK"?>

<!DOCTYPE hibernate-mapping PUBLIC

"-//Hibernate/Hibernate Mapping DTD 3.0//EN"

"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>

<class name="events.Event" table="event">

<id name="id" column="id">

<generator class="native"/>

</id>

<property name="date" type="timestamp" column="date"/>

<property name="title"/>

</class>

</hibernate-mapping>

//注意这个配置文件和Event类最好放在同一个目录下，即配置文件也在这个events包下面

3。log4j.properties文件

### direct log messages to stdout ###

log4j.appender.stdout=org.apache.log4j.ConsoleAppender

log4j.appender.stdout.Target=System.out

log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### direct messages to file hibernate.log ###

#log4j.appender.file=org.apache.log4j.FileAppender

#log4j.appender.file.File=hibernate.log

#log4j.appender.file.layout=org.apache.log4j.PatternLayout

#log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### set log levels - for more verbose logging change 'info' to 'debug' ###

log4j.rootLogger=warn, stdout

log4j.logger.org.hibernate=info

#log4j.logger.org.hibernate=debug

### log HQL query parser activity

#log4j.logger.org.hibernate.hql.ast.AST=debug

### log just the SQL

#log4j.logger.org.hibernate.SQL=debug

### log JDBC bind parameters ###

log4j.logger.org.hibernate.type=info

#log4j.logger.org.hibernate.type=debug

### log schema export/update ###

log4j.logger.org.hibernate.tool.hbm2ddl=debug

### log HQL parse trees

#log4j.logger.org.hibernate.hql=debug

### log cache activity ###

#log4j.logger.org.hibernate.cache=debug

### log transaction activity

#log4j.logger.org.hibernate.transaction=debug

### log JDBC resource acquisition

#log4j.logger.org.hibernate.jdbc=debug

### enable the following line if you want to track down connection ###

### leakages when using DriverManagerConnectionProvider ###

#log4j.logger.org.hibernate.connection.DriverManagerConnectionProvider=trace

4。.////////////////////////////////////////////////Hibernate.hbm.xml数据库配置文件

注意它和包在同一层次上

a。针对mysql的(这个是我家的，原文是hsqldb数据库)

<?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>

<!-- Database connection settings -->

<property name="connection.driver_class">com.mysql.jdbc.Driver</property>

<property name="connection.url">jdbc:mysql://localhost/yay</property>

<property name="connection.username">root</property>

<property name="connection.password">qwe123</property>

<!-- JDBC connection pool (use the built-in) -->

<property name="connection.pool_size">1</property>

<!-- SQL dialect -->

<property name="dialect">org.hibernate.dialect.MySQLDialect</property>

<!-- Enable Hibernate's automatic session context management -->

<property name="current_session_context_class">thread</property>

<!-- Disable the second-level cache -->

<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>

<!-- Echo all executed SQL to stdout -->

<property name="show_sql">true</property>

<!-- Drop and re-create the database schema on startup -->

<!--property name="hbm2ddl.auto">create</property-->

<mapping resource="events/Event.hbm.xml"/>

</session-factory>

</hibernate-configuration>

用mysql时候需要在yay数据库目录下建立表event，sql语句如下：

create table event

(

id bigint(5) auto_increment primary key,

date timestamp not null,

title varchar(50)

);

b。这个是以用hsqldb时候的配置文件

<?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>

<!-- Database connection settings -->

<property name="connection.driver_class">org.hsqldb.jdbcDriver</property>

<property name="connection.url">jdbc:hsqldb:hsql://localhost</property>

<property name="connection.username">sa</property>

<property name="connection.password"></property>

<!-- JDBC connection pool (use the built-in) -->

<property name="connection.pool_size">1</property>

<!-- SQL dialect -->

<property name="dialect">org.hibernate.dialect.HSQLDialect</property>

<!-- Enable Hibernate's automatic session context management -->

<property name="current_session_context_class">thread</property>

<!-- Disable the second-level cache -->

<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>

<!-- Echo all executed SQL to stdout -->

<property name="show_sql">true</property>

<!-- Drop and re-create the database schema on startup -->

<!--property name="hbm2ddl.auto">create</property-->

<mapping resource="events/Event.hbm.xml"/>

</session-factory>

</hibernate-configuration>

这里需要提醒的是：你只需要启动数据库系统，不需要你自己去建立表格或者库。

启动数据库时候需要建立一个目录，比如data，然后在这个目录下键入这个dos命令：

D:/hibernate3/data>java -classpath ../lib/hsqldb.jar org.hsqldb.Server

这个时候如果你到data目录下去看，会看到自动生成3个文件，可见数据是保存在调用启动数据库命令的目录里面的。

5。/////////////////////////////////////////////////////获取SessionFactory对象的辅助类：

package util;

import org.hibernate.*;

import org.hibernate.cfg.*;

public class HibernateUtil{

private static final SessionFactory sessionFactory;

static {

try {

// Create the SessionFactory from hibernate.cfg.xml

sessionFactory = new Configuration().configure().buildSessionFactory();

} catch (Throwable ex) {

// Make sure you log the exception, as it might be swallowed

System.err.println("Initial SessionFactory creation failed." + ex);

throw new ExceptionInInitializerError(ex);

}

}

public static SessionFactory getSessionFactory() {

return sessionFactory;

}

}

6。////////////////////////////////////////////用来做测试，包含main方法的类

package events;

import org.hibernate.*;

import org.hibernate.criterion.Expression;

import java.util.*;

import util.HibernateUtil;

public class EventManager {

public static void main(String[] args) {

EventManager mgr = new EventManager();

if (args[0].equals("store")) {

mgr.createAndStoreEvent("My Event", new Date());

}

else if (args[0].equals("list")) {

List events = mgr.listEvents();

System.out.println("**************************");

for (int i = 0; i < events.size(); i++) {

Event theEvent = (Event) events.get(i);

System.out.println("Event: " + theEvent.getTitle() +

" Time: " + theEvent.getDate());

}

System.out.println("**************************");

}

HibernateUtil.getSessionFactory().close();

}

private Long createAndStoreEvent(String title, Date theDate) {

Session session = HibernateUtil.getSessionFactory().getCurrentSession();

session.beginTransaction();

Event theEvent = new Event();

theEvent.setTitle(title);

theEvent.setDate(theDate);

session.save(theEvent);

session.getTransaction().commit();

return theEvent.getId();

}

 

private List listEvents() {

Session session = HibernateUtil.getSessionFactory().getCurrentSession();

session.beginTransaction();

List result = session.createQuery("from events.Event").list();

//List result = session.createQuery("from Event").list();也是可以的

session.getTransaction().commit();

return result;

}

}

7。////////////////////////////////////////少不了ant工具的配合

<project name="hibernate-tutorial" default="compile">

<property name="sourcedir" value="${basedir}/src"/>

<property name="targetdir" value="${basedir}/bin"/>

<property name="librarydir" value="${basedir}/lib"/>

<path id="libraries">

<fileset dir="${librarydir}">

<include name="*.jar"/>

</fileset>

</path>

<target name="clean">

<delete dir="${targetdir}"/>

<mkdir dir="${targetdir}"/>

</target>

<target name="compile" depends="clean, copy-resources">

<javac srcdir="${sourcedir}"

destdir="${targetdir}"

classpathref="libraries"/>

</target>

<target name="copy-resources">

<copy todir="${targetdir}">

<fileset dir="${sourcedir}">

<exclude name="**/*.java"/>

</fileset>

</copy>

</target>

<target name="run" depends="compile">

<java fork="true" classname="events.EventManager" classpathref="libraries">

<classpath path="${targetdir}"/>

<arg value="${action}"/>

</java>

</target>

<target name="war" depends="compile">

<war destfile="hibernate-tutorial.war" webxml="web.xml">

<lib dir="${librarydir}">

<exclude name="jsdk*.jar"/>

</lib>

<classes dir="${targetdir}"/>

</war>

</target>

</project>

注意这里的${basedir}指的就是build.xml文件所在的目录。

8。//////////////////////////////////运行：

注意，可以从命令行里面传递参数赋到ant中，比如这里的${action}"

参数一 run -Daction=store

参数二 run -Daction=list

 

给大家看看我的目录结构吧：》

hibernate目录

data目录 在这个目录下，调用命令启动hsqldb的

lib目录 在这个目录下，把需要的包全部放进来

SQL目录 在这个目录下，我生成mysql需要的sql语句

enentTable.sql 文件

src目录

events包

Event.hbm.xml 文件

Event.java文件

EventManager.java文件

util包

HibernateUtil.java 文件

hibernate.cfg.xml文件(注意针对mysql和hsqldb的各不相同)

log4j.properties文件

build.xml文件

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