/**
     * 读取配置文件
     * @param file
     * @return
     */
    public static PropertiesConfiguration loadConfig(String file){
        PropertiesConfiguration config = null;
        try {
            config = new PropertiesConfiguration(file);
            config.setEncoding("UTF-8");
            config.setReloadingStrategy(new FileChangedReloadingStrategy());
            config.setAutoSave(true);
            logger.info("加载配置文件成功...");
        } catch (ConfigurationException e) {
            logger.info("加载配置文件失败,异常信息:"+e.getLocalizedMessage());
        }
        return config;
    }

public static Configuration config = loadConfig("config.properties");

ConfigUtils.config.getString("weixin.app_id")