Spring中引入properties文件

方法1：

<context:property-placeholder location="classpath:com/dispatch/db.properties"/>

方法2：

<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath:com/dispatch/db.properties</value>
            </list>
        </property>
</bean>