spring配置常用配置

配置applicationContext.xml

<!-- 将多个配置文件读取到容器中，交给Spring管理 -->
<bean id="propertyConfigurer"
    class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="locations">
        <list>
            <value>classpath:global.properties</value>
            <value>classpath:jdbc.properties</value>
        </list>
    </property>
</bean>

<!--master 配置数据源 -->
<bean id="masterDataSource" class="com.alibaba.druid.pool.DruidDataSource"
    init-method="init" destroy-method="close">
    <property name="driverClassName">
        <value>${master.jdbc.driverClassName}</value>
    </property>
    <property name="url">
        <value>${master.jdbc.url}</value>
    </property>
    <property name="username">
        <value>${master.jdbc.username}</value>
    </property>
    <property name="password">
        <value>${master.jdbc.password}</value>
    </property>

    ...
</bean>

<!--slave 配置数据源 -->
<bean id="slaveDataSource" class="com.alibaba.druid.pool.DruidDataSource"
    init-method="init" destroy-method="close">
    <property name="driverClassName">
        <value>${slave.jdbc.driverClassName}</value>
    </property>
    <property name="url">
        <value>${slave.jdbc.url}</value>
    </property>
    <property name="username">
        <value>${slave.jdbc.username}</value>
    </property>
    <property name="password">
        <value>${slave.jdbc.password}</value>
    </property>

    ...
</bean>

<bean id="dataSource" class="cn.mayongfa.service.imp.DynamicDataSource">
    <property name="targetDataSources">
        <map>
            <entry key="slave" value-ref="slaveDataSource" />
        </map>
    </property>
    <property name="defaultTargetDataSource" ref="masterDataSource" />
</bean>

<!-- 配置Jdbc模板 -->
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
    <property name="dataSource" ref="dataSource"></property>
</bean>

<!-- 配置事务管理器 -->
<bean id="transactionManager"
    class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
    p:dataSource-ref="dataSource" />

<!-- 数据源切换类 -->
<bean id="dataSourceChoose" class="cn.mayongfa.interceptor.DataSourceChoose" />

<!-- 通过AOP配置提供事务增强，让service包下所有Bean的所有方法拥有事务 -->
...