Spring PropertyPlaceholderConfigurer 未读取默认属性

发布于 2024-11-06 19:06:22 字数 1207 浏览 0 评论 0原文

我正在尝试将 activemq 代理嵌入到 Tomcat 中。代码库将部署在不同的环境中。我想要外部化一些参数，但想要为这些参数提供默认值，以防部署的环境不提供占位符值。

这就是我所拥有的：

<property name="properties">
    <props>
        <prop key="embed.broker.networkConnectorURI">static:(failover:(tcp://server01:61616,tcp://server02:61616))
        </prop>
        <prop key="embed.broker.transportConnectorURI">vm://localhost:61616</prop>
    </props>
</property>

<bean id="broker" class="org.apache.activemq.broker.BrokerService"
    init-method="start" destroy-method="stop">
    <property name="networkConnectorURIs">
        <list>
            <ref >${embed.broker.networkConnectorURI}</ref>
        </list>
    </property>
    <property name="transportConnectorURIs">
        <list>
            <value>${embed.broker.transportConnectorURI}</value>
        </list>
    </property>
    <property name="brokerName" value="embed-broker" />
</bean>

当我在缺少占位符的环境中部署它时，Tomcat 会抛出“无法解析占位符‘embed.broker.networkConnectorURI’”错误。换句话说，不会采用默认值。

任何帮助将不胜感激。

原文

I am trying to embed activemq broker in a Tomcat. The code base will be deployed in different environments. I want to externalize some parameters, but want to provide default values for those parameters in case the deployed environment does not provide values for place holders.

This is what I have :

<property name="properties">
    <props>
        <prop key="embed.broker.networkConnectorURI">static:(failover:(tcp://server01:61616,tcp://server02:61616))
        </prop>
        <prop key="embed.broker.transportConnectorURI">vm://localhost:61616</prop>
    </props>
</property>

<bean id="broker" class="org.apache.activemq.broker.BrokerService"
    init-method="start" destroy-method="stop">
    <property name="networkConnectorURIs">
        <list>
            <ref >${embed.broker.networkConnectorURI}</ref>
        </list>
    </property>
    <property name="transportConnectorURIs">
        <list>
            <value>${embed.broker.transportConnectorURI}</value>
        </list>
    </property>
    <property name="brokerName" value="embed-broker" />
</bean>

When I deploy this in an environment where the place holders are missing, Tomcat throws "Could not resolve placeholder 'embed.broker.networkConnectorURI' " error. In other words, the default values are not being picked up.

Any help would be appreciated.

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淡紫姑娘！ 2024-11-13 19:06:22

要获得一些默认值，请继续以下操作：

<bean id="myServer" class="com.gordondickens.myapp.MyServerConfig">
<property name="serverName" value="${server.name?localhost}" />
<property name="serverPort" value="${server.port?25}" />
</bean>

To have some default values, go on this way:

<bean id="myServer" class="com.gordondickens.myapp.MyServerConfig">
<property name="serverName" value="${server.name?localhost}" />
<property name="serverPort" value="${server.port?25}" />
</bean>

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