Java中如何获取spring中配置的properties属性文件内容

1、通过spring配置properties文件

<bean id="propertyConfigurer" class="com.tjsoft.base.util.CustomizedPropertyPlaceholderConfigurer"> <property name="ignoreResourceNotFound" value="true" /> <property name="locations"> <list> <value>/WEB-INF/config/jdbc.properties</value> <value>/WEB-INF/config/mail.properties</value> <value>/WEB-INF/config/system.properties</value> </list> </property> </bean>

其中class为自己定义的类

2、自定义类CustomizedPropertyPlaceholderConfigurer

import java.util.HashMap; import java.util.Map; import java.util.Properties; import org.springframework.beans.BeansException; import org.springframework.beans.factory.config.ConfigurableListableBeanFactory; import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer; /** * 自定义PropertyPlaceholderConfigurer返回properties内容 * * @author LHY 2012-02-24 * */ public class CustomizedPropertyPlaceholderConfigurer extends PropertyPlaceholderConfigurer { private static Map<String, Object> ctxPropertiesMap; @Override protected void processProperties( ConfigurableListableBeanFactory beanFactoryToProcess, Properties props) throws BeansException { super.processProperties(beanFactoryToProcess, props); ctxPropertiesMap = new HashMap<String, Object>(); for (Object key : props.keySet()) { String keyStr = key.toString(); String value = props.getProperty(keyStr); ctxPropertiesMap.put(keyStr, value); } } public static Object getContextProperty(String name) { return ctxPropertiesMap.get(name); } }

这样就可以通过CustomizedPropertyPlaceholderConfigurer类来获取properties属性文件中的内容了

3、如何获取属性文件的内容
String host = (String) CustomizedPropertyPlaceholderConfigurer.getContextProperty("mail.smtp.host");