applicationContext.xml内配置如下：
<bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE" />
<property name="ignoreResourceNotFound" value="true" />
<property name="locations">
<list>
标准配置
<value>classpath*:application.properties</value>
</list>
</property>
</bean>
报错
Exception in thread "main" org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 20 in XML document from URL is invalid; nested exception is org.xml.sax.SAXParseException: cvc-complex-type.2.3: Element \'list\' cannot have character [children], because the type\'s content type is element-only.
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:396)
修改为3.0后的配置
<context:property-placeholder location="file:D:/application.properties"/>