作者：未知 来源：月光软件站 加入时间：2005-2-28　月光软件站

先决条件：
1、开发工具Eclipse安装了插件Lomboz，并指明Server为JBoss
2、已经在Jboss中建立了与MySql的DataSource连接，JNDI为 java:/MySqlDS
3、已经在MySql中建立了表 CAT
Column |         Type          | Modifiers
--------+-----------------------+-----------
cat_id | character(32)         | not null
name   | character varying(16) | not null
sex    | character(1)          |
weight | real                  |
Indexes: cat_pkey primary key btree (cat_id)

整合步骤：
1、生成一个WEB应用
2、在这个应用的WEB-INF\lib下应该包含以下Hibernate必需包
hibernate2.jar
odmg-3.0.jar
commons-collections-2.1.1.jar
commons-logging-1.0.4.jar
dom4j-1.4.jar
ehcache-0.9.jar
cglib-full-2.0.2.jar
3、在这个应用的WEB-INF\classes下生成Hibernate配置文件hibernate.cfg.xml（也可以用hibernate.properties，此处不议），内容如下：
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration
    PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-2.0.dtd">
<hibernate-configuration>
    <session-factory name="hibernate/SessionFactory">
        <property name="connection.datasource">java:/MySqlDS</property>
        <property name="show_sql">true</property>
        <property name="dialect">hibernate.dialect net.sf.hibernate.dialect.MySQLDialect</property>

         <!-- Mapping files -->
        <mapping resource="Cat.hbm.xml"/>
    </session-factory>
</hibernate-configuration>

hibernate/SessionFactory为你需要绑定SessionFactory的JNDI名（绑定之后可以在容器内用Context lookup）。
java:/MySqlDS为你已经绑定好的MySql DataSource名。
hibernate.dialect net.sf.hibernate.dialect.MySQLDialect为Hibernate指明数据库方言为MYSQL。
Cat.hbm.xml为Hibernate映射文件，下面会提到。

4、定义可持久化类(POJO)-- Cat.java
public class Cat {   
private String id;
    private String name;
    private char sex;
    private float weight;
    public Cat() {
    }
    public String getId() {
        return id;
    }
   public void setId(String id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public char getSex() {
        return sex;
    }
   public void setSex(char sex) {
        this.sex = sex;
    }
    public float getWeight() {
        return weight;
    }
   public void setWeight(float weight) {
        this.weight = weight;
    }
}

5、定义类映射文件-- Cat.hbm.xml
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping
    PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>

    <class name="com.pbmaster.study.hibernate.po.Cat" table="CAT">

        <!-- A 32 hex character is our surrogate key. It's automatically
            generated by Hibernate with the UUID pattern. -->
        <id name="id" type="string" unsaved-value="null" >
            <column name="CAT_ID" sql-type="char(32)" not-null="true"/>
            <generator class="uuid.hex"/>
        </id>

        <!-- A cat has to have a name, but it shouldn' be too long. -->
        <property name="name">
            <column name="NAME" sql-type="varchar(16)" not-null="true"/>
        </property>

        <property name="sex"/>

        <property name="weight"/>

    </class>

</hibernate-mapping>

此xml文件放置到hibernate.cfg.xml相同的目录（不知道放到其他地方行不行，待查）。

6、定义一个startup Servlet －InitHibernate.java，在Servlet的init()中启动Hibernate，并绑定JNDI
public class InitHibernate extends HttpServlet {

 public void init(ServletConfig config) throws ServletException {
  super.init(config);
  try{
   SessionFactory sf = new Configuration().configure().buildSessionFactory();
      System.out.println("Hibernate Startup completed successfully");
  }
  catch(Exception ex){
   ex.printStackTrace();
  }
  //TODO Method stub generated by Lomboz
 }

相关软件：