Spring中PropertyPlaceholderConfigurer的使用
基本的使用方法是:(1)
<bean id="propertyConfigurerForAnalysis" 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将在之后的博文中续写