Java实现的properties文件动态修改并自动保存工具类

public class Config {  private static PropertiesConfiguration propConfig;  private static final Config CONFIG = new Config();  /**   * 自动保存   */  private static boolean autoSave = true;  private Config() {  }  public static Config getInstance(String propertiesFile) {    //执行初始化     init(propertiesFile);    return CONFIG;  }  /**   * 初始化   *   * @param propertiesFile   * @see   */  private static void init(String propertiesFile) {    try {      propConfig = new PropertiesConfiguration(propertiesFile);      //自动重新加载       propConfig.setReloadingStrategy(new FileChangedReloadingStrategy());      //自动保存       propConfig.setAutoSave(autoSave);    } catch (ConfigurationException e) {      e.printStackTrace();    }  }  /**   * 根据Key获得对应的value   *   * @param key   * @return   * @see   */  public Object getValue(String key) {    return propConfig.getProperty(key);  }  /**   * 设置属性   *   * @param key   * @param value   * @see   */  public void setProperty(String key, String value) {    propConfig.setProperty(key, value);  }}