在不使用基于文件的属性占位符的情况下设置动态restConfiguration端口

最初,我使用基于文件的bridgePropertyPlaceholder动态设置restConfiguration端口。

<bean id="bridgePropertyPlaceholder" class="org.apache.camel.spring.spi.BridgePropertyPlaceholderConfigurer">
    <property name="locations">
        <list>
            <value>file:./connection_${ENV}.properties</value>
        </list>
    </property>
</bean>

<restConfiguration component="restlet" host="localhost" port="{{rest.port}}"/>

价值 ${ENV} {{rest.port}} 来自 connection_${ENV}.properties

连接${ENV}.properties {{其余端口}} 到环境变量,我点击:

Caused by: java.lang.IllegalArgumentException: Property with key [rest.port] not found in properties from text: {{rest.port}}

<restConfiguration component="restlet" host="localhost" port="${rest.port}"/>

Caused by: org.apache.camel.TypeConversionException: Error during type conversion from type: java.lang.String to the required type: java.lang.Integer with value ${rest.port} due java.lang.NumberFormatException: For input string: "${rest.port}"

我的问题是:如何设置动态rest配置端口 使用基于文件的属性占位符?

备注:我知道存在使用javavm参数的解决方法(即-Drest.port=1234),但这种方法不是我想要的。