code: public static void reload(){
          conf.clear();
          LOGGER.info("开始加载配置文件");
          long start = System.currentTimeMillis();
          loadConf("word.conf");
          loadConf("word.local.conf");
          checkSystemProperties();
          long cost = System.currentTimeMillis() - start;
          LOGGER.info("配置文件加载完毕，耗时"+cost+" 毫秒，配置项数目："+conf.size());
          LOGGER.info("配置信息：");
          AtomicInteger i = new AtomicInteger();
          conf.keySet().stream().sorted().forEach(key -> {
              LOGGER.info(i.incrementAndGet()+"、"+key+"="+conf.get(key));
          });
      }
docs: 重新加载配置文件