Apache Commons configuration使用入門

原創

程序那些事

2020-02-20 17:40

使用Commons Configuration可以很好的管理我們的配置文件的讀寫，

官網：http://commons.apache.org/configuration

需要用到commons-lang,commons-collections,commons-logging,log4j jar包

public class Test {

    public static  void main(String[] args) throws ConfigurationException, InterruptedException {
        xmlLoadTest();
        fileLoadTest();
        saveTest();
        runtimeReload();
    }
    //xml文件
    public static void xmlLoadTest() throws ConfigurationException{
        String file = "test1.xml";
        XMLConfiguration config = new XMLConfiguration(Test.class.getResource(file));
        System.out.println(config.getString("conf.url"));
        System.out.println(config.getDouble("conf.money"));
    }
    //properties文件
    private static void fileLoadTest() throws ConfigurationException {
        String file = "test2.properties";
        PropertiesConfiguration config = new PropertiesConfiguration(Test.class.getResource(file));
        System.out.println(config.getString("url"));
    }
    //保存到文件
    public static void saveTest() throws ConfigurationException{
        String file = "test2.properties";
        PropertiesConfiguration config = new PropertiesConfiguration(Test.class.getResource(file));
        //設置自動保存或顯示調用 config.save();
        config.setProperty("colors.background", "#000000");
        config.setAutoSave(true);
    }
    //運行期參數修改加載
    public static void runtimeReload() throws ConfigurationException, InterruptedException{
        String file = "test2.properties";
        PropertiesConfiguration config = new PropertiesConfiguration(Test.class.getResource(file));
        config.setReloadingStrategy(new FileChangedReloadingStrategy());
        System.out.println(config.getString("url"));
        Thread.sleep(10000);//在休眠期間，手動修改文件裏面的url值後觀察日誌情況
        System.out.println(config.getString("url"));
    }
}