spring工具-- 配置文件初始化.

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利用spring,将文件properties初始化到静态对象.  这个是我自己去spring里找的. 应该不能算最佳实践,

我知道Property类可以直接通过文件流去找配置文件, 但是web项目里, 把路径写在类里似乎不是一个好的做法.

spring配置:因为ConfigUtil里的对象是静态的,可以重复此配置添加多个配置文件.

<bean class="ConfigUtil"> <property name="locations" value="/WEB-INF/conf/conf.properties" /> </bean>

然后是程序, 主要是继承了PropertyResourceConfigurer,  spring自己用来读property的抽象类.

 import org.apache.log4j.Logger; import org.springframework.beans.BeansException; import org.springframework.beans.factory.config.ConfigurableListableBeanFactory; import org.springframework.beans.factory.config.PropertyResourceConfigurer; import java.util.Enumeration; import java.util.Properties; /** * * @Description: 获取系统参数和conf.properties中的参数, public class ConfigUtil extends PropertyResourceConfigurer { private static final Logger logger = Logger.getLogger(ConfigUtil.class); private static Properties properties; public static String getConfig(String key) { return properties.getProperty(key); } public static String getConfig(String key, String defaultValue) { return properties.getProperty(key, defaultValue); } public static void appendProperties(Properties paramProperties) { if (properties == null) { properties = paramProperties; } else { Enumeration enums = paramProperties.propertyNames(); while (enums.hasMoreElements()) { String key = (String) enums.nextElement(); properties.setProperty(key, paramProperties.getProperty(key)); logger.info("add ConfigUtil: " + key + " = '" + paramProperties.getProperty(key)); } } } @Override protected void processProperties( ConfigurableListableBeanFactory paramConfigurableListableBeanFactory, Properties paramProperties) throws BeansException { appendProperties(paramProperties); } }