Spring+Hibernate框架下Mysql读写分离、主从数据库配置(下)

转载：http://lujia35.iteye.com/blog/969466

下面配置spring applicationContext.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<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" xmlns:context="http://www.springframework.org/schema/context"
    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
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <context:annotation-config />
    <!-- 自动加载SERVICE DAO ACTION -->
    <context:component-scan base-package="cn.com.company.dao.*" />
    <context:component-scan base-package="cn.com.company.service.*" />
    <context:component-scan base-package="cn.com.company.action" />

    <!-- 加载properties配置文件 -->
    <bean id="propertyConfigurer"
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath:jdbc.properties</value>
            </list>
        </property>
    </bean>

    <bean id="parentDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        //***c3p0配置
    </bean>
     <!-- 主数据源-->
    <bean id="masterDataSource" parent="parentDataSource">
        <property name="driverClass" value="${master.jdbc.driverClassName}" />
        <property name="jdbcUrl" value="${master.jdbc.url}" />
        <property name="user" value="${master.jdbc.username}" />
        <property name="password" value="${master.jdbc.password}" />
    </bean>
    <!-- 从数据源-->
    <bean id="slaveDataSource" parent="parentDataSource">
        <property name="driverClass" value="${slave.jdbc.driverClassName}" />
        <property name="jdbcUrl" value="${slave.jdbc.url}" />
        <property name="user" value="${slave.jdbc.username}" />
        <property name="password" value="${slave.jdbc.password}" />
    </bean>

    <bean id="dataSource" class="com.company.datasource.DynamicDataSource">
        <property name="targetDataSources">
            <map key-type="java.lang.String">
                <entry key="slave" value-ref="slaveDataSource" />
            </map>
        </property>
        <property name="defaultTargetDataSource" ref="masterDataSource" />
    </bean>

    <!-- 配置sessionFactory -->
    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="packagesToScan" value="cn.com.company.entity" />
        <property name="hibernateProperties">
            <props>

                <prop>//***hibernate一些参数这里不写了</prop>
            </props>
        </property>
    </bean>

    <!-- 切换数据源 -->
    <bean id="dataSourceAdvice" class="com.company.aop.DataSourceAdvice" />
    <aop:config>
        <aop:advisor
            pointcut="execution(* cn.com.company.service..*Service.*(..))"
            advice-ref="dataSourceAdvice" />
    </aop:config>

    <!-- 配置事务管理器 -->
    <bean id="transactionManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory">
            <ref bean="sessionFactory" />
        </property>
    </bean>
    <!--配置事务的传播特性 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <!-- 对增、删、改方法进行事务支持 -->
            <tx:method name="add*" propagation="REQUIRED" />
            <tx:method<

  


  
    
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      2011-04-08 23:17
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