配置动态读取(变化)文件 in Spring

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>