1. 从环境变量中读取路径：
<bean id="envPath" class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
<property name="targetObject"> <!-- System.getProperties() -->
<bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
<property name="targetClass" value="java.lang.System" />
<property name="targetMethod" value="getProperties" />
</bean>
</property>
<property name="targetMethod" value="getProperty" />
<property name="arguments" value="env.home">
</property>
</bean>
2. 配置动态读取：
<bean id="dynamic.upload.config" class="org.apache.commons.configuration.PropertiesConfiguration" init-method="load">
<property name="fileName" value="#{envPath}\properties\upload\upload-config.properties"/>
<property name="reloadingStrategy">
<bean class="org.apache.commons.configuration.reloading.FileChangedReloadingStrategy"/>
</property>
</bean>
3. 需要引入jar包 commons-configuration
<dependency>
<groupId>commons-configuration</groupId>
<artifactId>commons-configuration</artifactId>
<version>${commons.configuration-version}</version>
</dependency>