Spring加载属性文件的扩展
???? 在项目中一个属性文件配置信息，提供给数据连接信息和主机信息，数据连接信息提供给spring框架使用，主机信息提供应用程序使用。不想写两个配置文件，特意对spring的读取属性的文件进行扩展。
下面为样例代码：
package com.easyway.ext.properties;import java.util.HashMap;import java.util.HashSet;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;/** * 采用Spring的加载属性信息 * 在应用中获取 * @author longgangbai * */public class FilePropertyPlaceholderConfigurer extends PropertyPlaceholderConfigurer { private Map<String, String> resolvedProps;//将属性保存起来 @Override protected void processProperties(ConfigurableListableBeanFactory beanFactoryToProcess, Properties props) throws BeansException { super.processProperties(beanFactoryToProcess, props); resolvedProps = new HashMap<String, String>(); for (Object key : props.keySet()) { String keyStr = key.toString(); resolvedProps.put(keyStr, parseStringValue(props.getProperty(keyStr), props, new HashSet())); } }public Map<String, String> getResolvedProps() {return resolvedProps;}public void setResolvedProps(Map<String, String> resolvedProps) {this.resolvedProps = resolvedProps;}}?
spring的配置 如下
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd"> <bean id="propertyBean" name="code">package com.easyway.ext.properties;import java.util.Map;import java.util.Map.Entry;import java.util.Set;import org.springframework.context.support.ClassPathXmlApplicationContext;/** * * @author longgangbai * */public class PropertyBeanMain {public static void main(String[] args) {ClassPathXmlApplicationContext appctx=new ClassPathXmlApplicationContext("classpath:appContext.xml");FilePropertyPlaceholderConfigurer propertyBean=(FilePropertyPlaceholderConfigurer)appctx.getBean("propertyBean");Map<String,String> maps=propertyBean.getResolvedProps();Set<Entry<String,String>> entryset=maps.entrySet();for (Entry<String, String> entry : entryset) {System.out.println(entry.getKey()+" ="+entry.getValue());}}}?
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