愚蠢的spring

一个啥都不做的基于spring的web应用，至少需要8个jar, common-logging,spring asm,spring core, spring expression,spring context,spring web,spring beans,spring transation

Spring 3.0第一步：加载applicationcontext.xml

在web.xml里

	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>

	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>/WEB-INF/applicationContext*.xml</param-value>
	</context-param>

第二步： 加载数据源，打开Web-inf下applicationcoext.xml,这时候spring需要你再添加3个jar: apache commones dbcp,collection,pool和spring orm,jdbc,mysql驱动程序，以及hibernate相关jar: hibernate3.jar,dom4j.jar,jta.jar,slf4j的接口包和实现包，jassit和antlr

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
    <!-- <bean/> definitions here -->
    <bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="org.hsqldb.jdbcDriver"/>
        <property name="url" value="jdbc:hsqldb:hsql://localhost:9001"/>
        <property name="username" value="sa"/>
        <property name="password" value=""/>
    </bean>
	
    <bean id="mySessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource" ref="myDataSource"/>
        <property name="mappingResources">
            <list>
                <value>
                    product.hbm.xml
                </value>
            </list>
        </property>
        <property name="hibernateProperties">
            <value>
                hibernate.dialect=org.hibernate.dialect.HSQLDialect
            </value>
        </property>
    </bean>
</beans>

第三步，添加事务管理器支持.

为了增加spring事务管理器，你还得继续在你的应用中添加jar: aopalliance，aspectj,和spring aop.....

修改applicationcontext.xml的名称空间，如下

<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns:aop="http://www.springframework.org/schema/aop"
 xmlns:tx="http://www.springframework.org/schema/tx"
 xsi:schemaLocation="
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
	http://www.springframework.org/schema/tx
	http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

然后添加事务管理器：

   <bean id="transactionManager"
     	class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"/>
    </bean>
	
    <aop:config>
        <aop:pointcut id="productServiceMethods"
         expression="execution(* product.ProductService.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="productServiceMethods"/>
    </aop:config>
    
	<tx:advice id="txAdvice" transaction-manager="myTxManager">
        <tx:attributes>
            <tx:method name="increasePrice*" propagation="REQUIRED"/>
            <tx:method name="someOtherBusinessMethod" propagation="REQUIRES_NEW"/>
            <tx:method name="*" propagation="SUPPORTS" read-only="true"/>
        </tx:attributes>
    </tx:advice>
    
	<bean id="myProductService" class="product.SimpleProductService">
		<property name="productDao" ref="myProductDao"/>
	</bean>