Spring中PropertyPlaceholderConfigurer的使用

<context:property-placeholder location="classpath:jdbc.properties"ignore-unresolvable="true" />

<bean id="propertyConfigurerForAnalysis"name="code"><bean id="propertyConfigurer"name="code"><bean id="propertyConfigurerForProject1"value="1" /><property name="ignoreUnresolvablePlaceholders" value="true" /><property name="location"><value>classpath:/spring/include/dbQuery.properties</value></property></bean><bean id="propertyConfigurerForProject2"value="2" /><property name="ignoreUnresolvablePlaceholders" value="true" /><property name="locations"><list><value>classpath:/spring/include/jdbc-parms.properties</value><value>classpath:/spring/include/base-config.properties</value></list></property></bean>

其中order属性代表其加载顺序，而ignoreUnresolvablePlaceholders为是否忽略不可解析的 Placeholder，如配置了多个PropertyPlaceholderConfigurer，则需设置为true

至此你已经了解到了如何使用PropertyPlaceholderConfigurer，如何使用多个Properties文件，以及如何配置多个PropertyPlaceholderConfigurer来分解工程中分散的Properties文件。至于 PropertyPlaceholderConfigurer还有更多的扩展应用，如属性文件加密解密等方法

引自：http://blog.163.com/wchao226@126/blog/static/69514819201051742718830/