code: @Override
      public List<WeChatMessage> handleMsg(List<Message> messages) {
          if (null != messages && messages.size() > 0) {
              List<WeChatMessage> weChatMessages = new ArrayList<>(messages.size());
              boolean             hashNewMsg     = false;
              for (Message message : messages) {
                  WeChatMessage weChatMessage = this.processMsg(message);
                  if (null != weChatMessage) {
                      weChatMessages.add(weChatMessage);
                      hashNewMsg = true;
                  }
              }
              if (hashNewMsg) {
                  log.info("你有新的消息");
              }
              return weChatMessages;
          }
          return null;
      }
docs: 处理新消息
  
  @param messages 要处理的消息列表