Spring 事务

1.利用Bean继承的方式：Spring 事务的配置如下：

txProxyTemplate的abstract="true"，说明此类是一个抽象类，也可以不设置abstract属性，设置lazy-init="true"

也是把他当作抽象类，因为应用使用的是他的子bean，没必要的到代理类的实例。

transactionManager是为事务代理bean注入使用适用于Hibernte的事务管理器

<beans>
    <!-- on spring context starting up, frech the application context -->
    <bean id="beansUtil" class="com.krm.util.BeansUtil"></bean>
    <!-- Transaction template for Managers, from: http://blog.exis.com/colin/archives/2004/07/31/concise-transaction-definitions-spring-11/ -->
    <bean id="txProxyTemplate" abstract="true"
        class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
        <property name="transactionManager" ref="transactionManager" />
        <property name="transactionAttributes">
            <props>
                <prop key="save*">PROPAGATION_REQUIRED</prop>
                <prop key="dataCollect">PROPAGATION_REQUIRED</prop>
                <prop key="getData*">PROPAGATION_REQUIRED</prop>
                <prop key="add*">PROPAGATION_REQUIRED</prop>
                <prop key="sort*">PROPAGATION_REQUIRED</prop>
                <prop key="del*">PROPAGATION_REQUIRED</prop>
                <prop key="set*">PROPAGATION_REQUIRED</prop>
                <prop key="update*">PROPAGATION_REQUIRED</prop>
                <prop key="remove*">PROPAGATION_REQUIRED</prop>
                <prop key="forward*">PROPAGATION_REQUIRED</prop>
                <prop key="reject*">PROPAGATION_REQUIRED</prop>
                <prop key="recover*">PROPAGATION_REQUIRED</prop>
                <prop key="recycle*">PROPAGATION_REQUIRED</prop>
                <prop key="freeze*">PROPAGATION_REQUIRED</prop>
                <prop key="transfer*">PROPAGATION_REQUIRED</prop>
                <prop key="change*">PROPAGATION_REQUIRED</prop>
                <prop key="build*">PROPAGATION_REQUIRED</prop>
                <prop key="insert*">PROPAGATION_REQUIRED</prop>
                <prop key="*WithLog">PROPAGATION_REQUIRED</prop>
                <prop key="prepare*">PROPAGATION_REQUIRED</prop>
                <prop key="init*">PROPAGATION_REQUIRED</prop>
                <prop key="import*">PROPAGATION_REQUIRED</prop>
                <prop key="fill*">PROPAGATION_REQUIRED</prop>
                <prop key="restore*">PROPAGATION_REQUIRED</prop>
                <prop key="oper*">PROPAGATION_REQUIRED</prop>
                <prop key="batch*">PROPAGATION_REQUIRED</prop>
                <prop key="need*">PROPAGATION_REQUIRED</prop>
                <!--<prop key="get*">PROPAGATION_REQUIRED</prop> -->
                <prop key="copy*">PROPAGATION_REQUIRED</prop>
                <prop key="extractive*">PROPAGATION_REQUIRED</prop>
                <prop key="getNeedCarryInfo">PROPAGATION_REQUIRED</prop>
                <prop key="parseAndCompareItem">PROPAGATION_REQUIRED</prop>
                <prop key="*">PROPAGATION_REQUIRED,readOnly</prop>
            </props>
        </property>
    </bean>

    <!-- Generic manager that can be used to do basic CRUD operations on any 
        objects -->
    <bean id="uploadService" parent="txProxyTemplate">
        <property name="target">
            <bean class="com.krm.slsint.common.services.impl.UploadServiceImpl">
                <property name="uploadDAO" ref="uploadDAO" />
            </bean>
        </property>
    </bean>

    <!-- Transaction manager for a single Hibernate SessionFactory (alternative 
        to JTA) -->
    <bean id="transactionManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>
</beans>

2.如果不使用继承的方式，则还需要配置目标范围，并且去掉abstract="true"属性

    <!--   为事务代理bean设置目标bean -->    
    <property name="target">    
        <!--   采用嵌套bean配置目标bean-->    
        <bean class="test.dao.impl.TaoTemplatesDAOImpl">    
            <property name="sessionFactory">    
                <ref local="sessionFactory" />    
            </property>    
        </bean>    
    </property>

　　定义一个hibernate的SessionFactory

    <!-- Hibernate SessionFactory -->
    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="mappingResources">
            <list>
                <!-- module part start -->
                <!--以下用来列出所有的PO映射文件-->
                <value>com/krm/slsint/module/vo/xxx.hbm.xml</value>
            </list>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">${hibernate.dialect}</prop>
                <prop key="hibernate.jdbc.batch_size">20</prop>
                <prop key="hibernate.show_sql">true</prop>
                <!-- <prop key="hibernate.hbm2ddl.auto">update</prop> -->
                <prop key="hibernate.query.factory_class">org.hibernate.hql.classic.ClassicQueryTranslatorFactory</prop>
            </props>
        </property>
        <property name="lobHandler">
            <bean class="com.krm.slsint.util.UniversalLobHandler" />
        </property>
    </bean>

　　定义JNDI数据源：

    <!-- JNDI DataSource for J2EE environments -->
    <bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
        <property name="jndiName"><value>java:comp/env/jdbc/managedb</value></property>
    </bean>

　　定义DBCP数据源：

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <property name="driverClassName">
            <value>${hibernate.connection.driver_class}</value>
        </property>
        <property name="url">
            <value>${hibernate.connection.url}</value>
        </property>
        <property name="username" value="${hibernate.connection.username}" />
        <property name="password" value="${hibernate.connection.password}" />
        <property name="maxIdle" value="500" />
        <property name="maxActive" value="4000" />
        <property name="maxWait" value="100" />
        <property name="removeAbandoned" value="true" />
        <property name="removeAbandonedTimeout" value="180" />
        <property name="logAbandoned" value="true" />
        <property name="initialSize" value="10" />
    </bean>

　　更多数据源定义方法不再例举。

Spring 事务

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