Configuration对properties、xml配置文件的【增删改查】及动态加载

package com.athl.configuration; import org.apache.commons.configuration.ConfigurationException; import org.apache.commons.configuration.PropertiesConfiguration; import org.apache.commons.configuration.XMLConfiguration; import org.apache.commons.configuration.reloading.FileChangedReloadingStrategy; public class ConfigurationDemo { //一、读写properties类型的配置文件 //默认读取src根目录下 //public static final String propFileName = "cfg.properties"; public static final String propFileName = "com/athl/configuration/cfg.properties"; public static PropertiesConfiguration cfg1 = null; static { try { cfg1 = new PropertiesConfiguration(propFileName); } catch (Exception e) { e.printStackTrace(); } // 当文件的内容发生改变时，配置对象也会刷新 cfg1.setReloadingStrategy(new FileChangedReloadingStrategy()); } //这里以String为例其它类型数据类似 /*获取String*/ public static String getStringValue(String key) { return cfg1.getString(key); } /*修改String配置*/ public static void setStringValue(String key,String value){ cfg1.setProperty(key, value); try { cfg1.save(); } catch (ConfigurationException e) { e.printStackTrace(); } } /*添加String配置*/ public static void addStringValue(String key,String value){ cfg1.addProperty(key, value); try { cfg1.save(); } catch (ConfigurationException e) { e.printStackTrace(); } } /*删除String配置*/ public static void delStringValue(String key){ cfg1.clearProperty(key); try { cfg1.save(); } catch (ConfigurationException e) { e.printStackTrace(); } } //二、读写xml类型的配置文件 public static final String xmlFileName = "cfg.xml"; public static XMLConfiguration cfg2 = null; static { try { cfg2 = new XMLConfiguration(xmlFileName); } catch (ConfigurationException e) { e.printStackTrace(); } // 配置文件 发生变化就重新加载 cfg2.setReloadingStrategy(new FileChangedReloadingStrategy()); } //获取 public static String getXmlStringValue(String key) { return cfg2.getString(key); } //添加 public static void addXmlStringValue(String key,String value){ cfg2.addProperty(key, value); try { cfg2.save(); } catch (ConfigurationException e) { e.printStackTrace(); } } //其它与读写properties类型的配置文件类似，不再演示 //测试 public static void main(String[] args) { /*测试读写properties类型的配置文件*/ //获取 System.out.println("name:" + ConfigurationDemo.getStringValue("name")); //修改 //ConfigurationDemo.setStringValue("name", "oracl"); ConfigurationDemo.setStringValue("name", "mysql"); //获取修改后的 System.out.println("name:" + ConfigurationDemo.getStringValue("name")); //添加 ConfigurationDemo.addStringValue("newName", "newValue"); //获取添加后的 System.out.println("newName:"+ConfigurationDemo.getStringValue("newName")); //删除 ConfigurationDemo.delStringValue("newName"); //获取删除后的 System.out.println("newName:"+ConfigurationDemo.getStringValue("newName")); /*测试读写xml类型的配置文件*/ //获取 System.out.println("jdbcUrl="+ConfigurationDemo.getXmlStringValue("database.jdbcUrl")); //添加 ConfigurationDemo.addXmlStringValue("database.newName", "newValue"); //获取添加后的 System.out.println("newName:"+ConfigurationDemo.getXmlStringValue("database.newName")); } }