从死信频道重新发送消息

Question

I can put the messages in dead letter queue if message re-delivery attempts fail.
How do I initiate re-delivery of archived messages in Dead Letter queue?
Does Camel provide any solution for that?

Answer 1

As @sully6768 suggested - you can use Camel component handling the Dead Message redelivery for you (like JMS ).

However you can also define how many times the message will be attempted to send before Camel moves it to the Dead Letter Queue (BTW you can also define the time interval between the redelivery attempts).

errorHandler(deadLetterChannel("jms:queue:dead"))
    .maximumRedeliveries(3).redeliveryDelay(5000));

Answer 2

The DLQ is just another JMS destination. Simply create an additional Camel route that is used to process messages from the DLQ.