Factory-bean和PropertiesOverrideConfigurer

Question

如何在Spring工厂bean中使用PropertiesOverrideConfigurer？这些是我的bean定义。

<bean id="dataFeedFactory" class="com.gottex.gottware.datafeeds.factories.DataFeedFactory">
    <property name="dummyIntervalDistribution" ref="fixedIntervalGenerator"/>
    <property name="dummyStep" value="0.0001"/>
    <property name="serverAddress" value="${com.gottex.gottware.datafeeds.bloomberg.server.address}"/>
    <property name="serverPort" value="${com.gottex.gottware.datafeeds.bloomberg.server.port}"/>
</bean>

<bean id="referenceDataRequester" factory-bean="dataFeedFactory" factory-method="referenceDataRequester">
        <constructor-arg name="datasource" value="${com.gottex.gottware.datafeeds.mode}"/>
</bean>

我想用来自另一个属性文件的东西替换constructor-arg“datasource”。我知道如何将SpringOverrideConfigurer用于spring bean，工厂bean的用途是什么？

Answer 1

替换构造函数arg的正确策略是使用较低顺序的PropertyPlaceholderConfigurer，以便替换属性的现有值，如下所示

<bean id="mainPropertiesConfigurer"
      class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="properties">
        <props>
            <prop key="myProp">mypropvalue</prop>
        </props>
    </property>
    <property name="order" value="100"/>
</bean>

<bean id="overriderPropertiesConfigurer"
      class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="properties">
        <props>
            <prop key="myProp">mypropoverridenvalue</prop>
        </props>
    </property>
    <property name="order" value="1"/>
</bean>