把hibernate用到的包全部放进web应用程序的lib里面，然后定义hibernate.cfg.xml,也就是插件的配置信息，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>
<property name="show_sql">false</property>
<property name="use_outer_join">true</property>
<property name="hibernate.dialect">net.sf.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.connection.driver_class">org.gjt.mm.mysql.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql:///test</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password"></property>
<property name="hibernate.connection.pool.size">20</property>
<property name="session_factory_name">hibernate/session_factory</property>
<!-- Mapping files -->
<mapping resource="/homepage/Artical.hbm.xml"/>
</session-factory>
</hibernate-configuration>
信息很清楚的，就是配置数据库等信息，我们利用jndi来查找SessionFactory,下面是插件程序，HibernatePlugIn.java
import org.apache.struts.action.PlugIn;
import org.apache.struts.action.ActionServlet;
import org.apache.struts.config.ModuleConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletContext;
import net.sf.hibernate.SessionFactory;
import net.sf.hibernate.cfg.Configuration;
public class HibernatePlugIn
implements PlugIn {
public void destroy() {
}
public void init(ActionServlet servlet, ModuleConfig config) throws
ServletException {
try {
ServletContext context = servlet.getServletContext();
SessionFactory sf = new Configuration().configure().buildSessionFactory();
context.setAttribute("net.sf.hibernate.SessionFactory",sf);
}
catch (Exception ex) {
ex.printStackTrace();
}
}
}
相应的，要在struts-config.xml配置插件信息，大概如下，注意路径
<plug-in className="homepage.HibernatePlugIn">
<set-property property="configFilePath" value="/WEB-INF/classes/hibernate.cfg.xml" />
<set-property property="storeInServletContext" value="true" />
</plug-in>
以后就可以利用java.naming.Context,java.naming.InitiaContext来查找
Context ct = new InitialContext();
sessions=(SessionFactory) ct.lookup("hibernate/session_factory");
session=sessions.openSession();
当然，还有另外两种整合方式，我认为这种方法更为灵活，也比较容易掌握
