fix

src/main/java/com/example/rocketmqdemo/consumer/StringConsumer.java

@@ -6,7 +6,7 @@ import org.springframework.stereotype.Service;
 
 
 @Service
-@RocketMQMessageListener(consumerGroup = "${xc.rocketmq2.string-consumer-group}", topic = "${xc.rocketmq2.topic-string}")
+@RocketMQMessageListener(consumerGroup = "${xc.rocketmq2.string-consumer-group}", topic = "scc-test")
 public class StringConsumer implements RocketMQListener<String> {
 
     @Override