[I] [Enhancement] java sdk SimpleConsumerExample示例代码增加对receive方法的异常捕获 [rocketmq-clients]

[via GitHub]

ZhXZhao opened a new issue, #715:
URL: https://github.com/apache/rocketmq-clients/issues/715

   ### Before Creating the Enhancement Request
   
   - [X] I have confirmed that this should be classified as an enhancement 
rather than a bug/feature.
   
   
   ### Programming Language of the Client
   
   Java
   
   ### Summary
   
    java sdk SimpleConsumerExample示例代码增加对receive方法的异常捕获
   
   ### Motivation
   
   在触发服务端限流等异常事件时，receive方法会抛出异常，当限流恢复时，consumer不会自愈
   
   ### Describe the Solution You'd Like
   
   示例代码增加对receive方法的异常捕获
   ```
   // Receive message, multi-threading is more recommended.
           do {
               List<MessageView> messages = null;
               try {
                   messages = consumer.receive(maxMessageNum, 
invisibleDuration);
               }catch (Throwable t) {
                   log.error("*****", t);
               }
               log.info("Received {} message(s)", messages.size());
               for (MessageView message : messages) {
                   final MessageId messageId = message.getMessageId();
                   try {
                       consumer.ack(message);
                       log.info("Message is acknowledged successfully, 
messageId={}", messageId);
                   } catch (Throwable t) {
                       log.error("Message is failed to be acknowledged, 
messageId={}", messageId, t);
                   }
               }
   
           } while (true);
   ```
   
   ### Describe Alternatives You've Considered
   
   None
   
   ### Additional Context
   
   _No response_


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