我们今天要讨论struts Hibernate ,下面通一实例,我们能更深刻的了解struts Hibernate的整合问题。希望本文能对大家了解有所帮助。
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"?>
"http://hibernate.sourceforge.net/hibernate-configuration-2.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="show_sql">falseproperty>
<property name="use_outer_join">trueproperty>
<property name="hibernate.dialect">net.sf.hibernate.dialect.MySQLDialectproperty>
<property name="hibernate.connection.driver_class">org.gjt.mm.mysql.Driverproperty>
<property name="hibernate.connection.url">jdbc:mysql:///testproperty>
<property name="hibernate.connection.username">rootproperty>
<property name="hibernate.connection.password">property>
<property name="hibernate.connection.pool.size">20property>
<property name="session_factory_name">hibernate/session_factoryproperty>
<mapping resource="/homepage/Artical.hbm.xml"/>
session-factory>
hibernate-configuration>
- 1.
- 2.
- 3.
- 4.
- 5.
- 6.
- 7.
- 8.
- 9.
- 10.
- 11.
- 12.
- 13.
- 14.
- 15.
- 16.
- 17.
- 18.
- 19.
- 20.
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();
}
}
}
- 1.
- 2.
- 3.
- 4.
- 5.
- 6.
- 7.
- 8.
- 9.
- 10.
- 11.
- 12.
- 13.
- 14.
- 15.
- 16.
- 17.
- 18.
- 19.
- 20.
- 21.
- 22.
- 23.
- 24.
- 25.
- 26.
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>
- 1.
- 2.
- 3.
- 4.
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();
- 1.
- 2.
- 3.
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。以上介绍struts Hibernate。
【编辑推荐】