Spring+Hibernate+Struts

Spring+Hibernate+Struts

         ===============Spring+Hibernate+Struts配置===============
spring加载log4j
   web.xml

   < context - param >
     < param - name > log4jConfigLocation </ param - name >
     < param - value >/ WEB - INF / classes / log4j.properties </ param - value >
   </ context - param >
   < listener >
     < listener - class > org.springframework.web.util.Log4jConfigListener </ listener - class >
   </ listener >

一.spring+struts
1.加载springContext
      通过struts-config.xml中增加plug-in插件来加载springContext
   <plug-in className="org.springframework.web.struts.ContextLoaderPlugIn">
     <set-property property="contextConfigLocation" value="/WEB-INF/applicationContext.xml" />
   </plug-in>
   applicationContext.xml为spring的配置文件

2.将strutsAction交给Spring容器进行管理
      修改struts-config.xml中的action属性,action的type值不指定具体的实现类,统一修改成代理类
    <action input="/login.jsp"
         name="loginActionForm"
         path="/loginAction" 
         scope="request"   
         type="org.springframework.web.struts.DelegatingActionProxy"
         validate="false">
      <forward name="success" path="/success.jsp" />
      <forward name="failure" path="/failure.jsp" />
    </action>

3.在applicationContext.xml中的bean name值设定与struts-config.xml中action path值相对应,以使代理类DelegatingActionProxy能够根据传入的path在springContext中找到相应的bean,并将实例返回给struts.
<bean name="/loginAction" class="com.derek.action.LoginAction" singleton="false">
  <property name="login">
    <ref bean="loginBOProxy" />
  </property>
</bean>

二.spring+hibernate
   1.dateSource
      在springContext中设置dateSource Bean
     <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="net.sourceforge.jtds.jdbc.Driver"></property>
        <property name="url" value="jdbc:jtds:sqlserver://192.168.56.32:1433/testDB"></property>
        <property name="username" value="it"></property>
        <property name="password" value="it"></property>
     </bean>
     2.sessionFactory
       在springContext中设置sessionFactory Bean
  <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    <property name="dataSource" ref="dataSource"></property>
    <property name="mappingResources">
        <list>
          <value>hbm\OvertimeRecord.hbm.xml</value><!--hbm映射文件-->
          <value>hbm\OvertimePermit.hbm.xml</value>
        </list>
    </property>
    <property name="hibernateProperties">
        <props>
           <prop key="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</prop>
           <prop key="hibernate.show_sql">true</prop>
           <prop key="hibernate.jdbc.fetch_size">50</prop>
           <prop key="hibernate.jdbc.batch_size">20</prop>
        </props>
    </property>
  </bean>
 
  3.transactionManager
   在springContext中设置transactionManager Bean
   <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
     <property name="sessionFactory">
       <ref local="sessionFactory" />
     </property>
   </bean>

   4.DAO bean
      <bean id="Ilogin" class="com.derek.business.Login">
          <property name="sessionFactory">
              <ref local="sessionFactory"/>
          </property>
      </bean>
      public class Login extends HibernateDaoSupport implements LoginInterface
      DAO 继承HibernateDaoSupport
      HibernateSupport实现了HibernateTemplate和SessionFactory实例的关联, HibernateTemplate对Hibernate Session操作进行了封装，HibernateTemplate.execute方法则是一封装机制的核心. 借助HibernateTemplate我们可以脱离每次数据操作必须首先获得Session实例、启动事务、提交/回滚事务以及烦杂的try/catch/finally的繁琐操作.
        Spring中的事务管理实际上是基于动态AOP机制实现，为了实现动态AOP，Spring在默认情况下会使用Java DynamicProxy，但是，Dynamic Proxy要求其代理的对象必须实现一个接口，该接口定义了准备进行代理的方法。而对于没有实现任何接口的Java Class，需要采用其他方式，Spring通过CGLib实现这一功能。

   5.DAOProxy 代理bean
        通过代理,将上面的DAO bean 纳入到spring容器的事务管理中,并在其中设置对哪些方法进行事务管理
     <bean id="loginBOProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
           <property name="transactionManager">
                <ref bean="transactionManager" />
           </property>
           <property name="target">
                <ref local="Ilogin" /> <!--所代理的bean-->
           </property>
           <property name="transactionAttributes">
                <props>
                     <prop key="insert*">PROPAGATION_REQUIRED</prop> <!--以insert开头的方法加入事务管理-->
                     <prop key="get*">PROPAGATION_REQUIRED,readOnly</prop> <!--以get开头的方法只读-->
                </props>
           </property>
      </bean>
    
    6.action bean
      <bean name="/loginAction" class="com.derek.action.LoginAction" singleton="false">
         <property name="login">
            <ref bean="loginBOProxy" /> <!--要将其使用的DAO bean加入事务管理,就必须ref他的代理bean,且在LoginAction中该属性须由其接口强制类型转换-->
         </property>
      </bean>

示例代码:
  struts-conifg.xml

<? xml version = " 1.0 "  encoding = " UTF-8 " ?>
<! DOCTYPE struts - config PUBLIC  " -//Apache Software Foundation//DTD Struts Configuration 1.1//EN "   " http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd " >
< struts - config >

   < form - beans >
     < form - bean name = " loginActionForm "  type = " com.derek.form.LoginActionForm "   />
   </ form - beans >
   < action - mappings >
     < action input = " /login.jsp "  name = " loginActionForm "  path = " /loginAction "  scope = " request "  type = " org.springframework.web.struts.DelegatingActionProxy "  validate = " false " >
       < forward name = " success "  path = " /success.jsp "   />
       < forward name = " failure "  path = " /failure.jsp "   />
     </ action >
   </ action - mappings >
   < plug - in className = " org.springframework.web.struts.ContextLoaderPlugIn " >
     < set - property property = " contextConfigLocation "  value = " /WEB-INF/applicationContext.xml "   />
   </ plug - in >
</ struts - config >

  applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans SYSTEM "D:\JAVA\MyWork\SpringDemo\SpringWeb\WEB-INF\spring-beans.dtd">
<!--DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"-->

<!--
  - Root application context for the Countries application.
  - Web-specific beans are defined in "countries-servlet.xml".
  -->
<beans>

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
 <property name="driverClassName" value="net.sourceforge.jtds.jdbc.Driver"></property>
 <property name="url" value="jdbc:jtds:sqlserver://192.168.56.32:1433/testDB"></property>
 <property name="username" value="it"></property>
 <property name="password" value="itservice"></property>
</bean>

<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
 <property name="dataSource" ref="dataSource"></property>
 <property name="mappingResources">
  <list>
    <value>hbm\OvertimeRecord.hbm.xml</value>
    <value>hbm\OvertimePermit.hbm.xml</value>
  </list>
 </property>
 <property name="hibernateProperties">
  <props>
     <prop key="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</prop>
     <prop key="hibernate.show_sql">true</prop>
     <prop key="hibernate.jdbc.fetch_size">50</prop>
     <prop key="hibernate.jdbc.batch_size">20</prop>
  </props>
 </property>
</bean>

<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
   <property name="sessionFactory">
       <ref local="sessionFactory" />
   </property>
</bean>


<!---------------使用JNDI数据源----------------
bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName">
  <value>jdbc/cqccms</value>
</property>
<property name="jndiEnvironment">
     <props>
        <prop key="java.naming.factory.initial">
          weblogic.jndi.WLInitialContextFactory
        </prop>
        <prop key="java.naming.provider.url">t3://172.16.101.42:7001</prop>
        <prop key="java.naming.security.principal">weblogic</prop>
        <prop key="java.naming.security.credentials">weblogic</prop>
     </props>   
   </property> 
</bean>

<bean id="jndiTemplate" class="org.springframework.jndi.JndiTemplate" singleton="true"
  lazy-init="default" autowire="default" dependency-check="default">
  <property name="environment">
     <props>
        <prop key="java.naming.factory.initial">
          weblogic.jndi.WLInitialContextFactory
        </prop>
        <prop key="java.naming.provider.url">t3://172.16.101.42:7001</prop>
        <prop key="java.naming.security.principal">weblogic</prop>
        <prop key="java.naming.security.credentials">weblogic</prop>
     </props>   
   </property>
</bean>

<bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager" singleton="true"
  lazy-init="default" autowire="default" dependency-check="default">
  <property name="jndiTemplate">
   <ref local="jndiTemplate" />
  </property>
  <property name="userTransactionName">
   <value>weblogic/transaction/UserTransaction</value>
  </property>
</bean>

--------------------------------->


<bean id="RecordDao" class="com.derek.business.RecordDao">
  <property name="sessionFactory">
    <ref local="sessionFactory"/>
  </property>
</bean>

<bean id="RecordDaoProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
  <property name="transactionManager">
    <ref bean="transactionManager" />
  </property>
  <property name="target">
    <ref local="RecordDao" />
  </property>
  <property name="transactionAttributes">
    <props>
      <prop key="insert*">PROPAGATION_REQUIRED</prop>
      <prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
    </props>
  </property>
</bean>

<bean id="Ilogin" class="com.derek.business.Login">
  <property name="sessionFactory">
    <ref local="sessionFactory"/>
  </property>
</bean>

<bean id="loginBOProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
  <property name="transactionManager">
    <ref bean="transactionManager" />
  </property>
  <property name="target">
    <ref local="Ilogin" />
  </property>
  <property name="transactionAttributes">
    <props>
      <prop key="insert*">PROPAGATION_REQUIRED</prop>
      <prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
    </props>
  </property>
</bean>

<bean name="/loginAction" class="com.derek.action.LoginAction" singleton="false">
  <property name="login">
    <ref bean="loginBOProxy" />
  </property>
</bean>
</beans>

LoginInterface

package com.derek.myinterface;

public interface LoginInterface {
    public boolean check(String name,String pwd);
}

Login

package com.derek.business;

import com.derek.myinterface.LoginInterface;
import org.hibernate.SessionFactory;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import java.util.List;

public class Login extends HibernateDaoSupport implements LoginInterface{
    private SessionFactory sessionFactory;
    private String hsql = "from OvertimePermit where account=? and password=?";
    public Login() {}
    public boolean check(String name,String pwd){
        String condition[] = {name, pwd};//查询条件
        /**
         * 借助HibernateTemplate我们可以脱离每次数据操作必须首先
         * 获得Session实例 、启动事务、提交/回滚事务以及烦杂的try/catch/finally的繁琐操作
         */       
        List l = this.getHibernateTemplate().find(hsql, condition);
        
        if (l.size() > 0) return true;
          else return false;
    }
}

RecordDaoInterface

package com.derek.myinterface;

import java.util.List;
import hbm.OvertimeRecord;

public interface IRecordDao {
    public List findAll(String hsql);
    public void insert(OvertimeRecord or);
}

RecordDao

package com.derek.business;

import com.derek.myinterface.IRecordDao;
import java.util.List;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.hibernate.SessionFactory;
import hbm.OvertimeRecord;

public class RecordDao extends HibernateDaoSupport implements IRecordDao{
    private SessionFactory sessionFactory;
    public RecordDao() {
    }

    public List findAll(String hsql) {
       return this.getHibernateTemplate().find(hsql);
    }

    public void insert(OvertimeRecord or) {
        this.getHibernateTemplate().saveOrUpdate(or);
    }
}

LoginAction通过容器注入的Login实例完成业务操作(必须由接口强制类型转化)

package com.derek.action;

import javax.servlet.http.*;
import com.derek.form.*;
import org.apache.struts.action.*