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| fmottais |
 Posted: Wed Aug 29, 2007 6:57 am Post subject: Try to read Header MQDLH with a jms program |
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Novice
Joined: 30 May 2007
Posts: 10
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Hi,
I would like to read with a Java JMS program, the Dead-letter Queue header, and specialy the DestQName to repost my message.
I have no problem to connect to my QManager and My Dead-Letter Queue, but I not find property to read the Dead-letter Header (DestQName).
Did some one coult help me?
thank a lot
Best regard
Frederic |
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| Vitor |
| Posted: Wed Aug 29, 2007 7:05 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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No idea on the Java (someone else will be along in a minute) but if all you want to do is repost the message why not use the dead letter handler supplied?
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| fmottais |
| Posted: Wed Aug 29, 2007 7:22 am Post subject: |
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Novice
Joined: 30 May 2007
Posts: 10
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thanks for your answer.But I need to explain a little bit more my question.
This program is to repost some messages in the Dead Letter Queue to the original queue.
In fact, I use Webshepe Message Broker and when I've got a Exception in a flow, the message go to the Dead Letter queue.
So, I need to select the message in the dead letter queue to repost it into the original queue. The original queue name is in the DestQName of the MQDLH.
Regrettably, the dead letter handler is not the solution of my problem because I don't want to repost systematically all messages in the dead Letter queue, but only selected message. |
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| jefflowrey |
| Posted: Wed Aug 29, 2007 7:45 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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You are better served by a) configuring a backout queue, rather than using the Dead Letter Queue, and then b) writing a message flow to process the backout queue and requeue the correct messages.
Among other things, you won't have a DLH this way.
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I am *not* the model of the modern major general. |
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| Meenakshi Dhawale |
| Posted: Wed Aug 29, 2007 9:58 am Post subject: |
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Novice
Joined: 29 May 2007
Posts: 12
Location: India
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| There is a support pack named as "mo01_win.zip" that helps to find out the name of destination Q Name and it also provides the reason due to which messages are put to dead letter queue |
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| EddieA |
| Posted: Wed Aug 29, 2007 2:00 pm Post subject: |
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Jedi
Joined: 28 Jun 2001
Posts: 2453
Location: Los Angeles
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I posted some Java code, quite a while ago, that showed how to read additional MQ headers. You could try searching for it. But that was pure Java, not JMS.
Basically, you get both the additional headers, and the data payload, when you get the message. You then have to read the header portion field by field.
Cheers,
_________________
Eddie Atherton
IBM Certified Solution Developer - WebSphere Message Broker V6.1
IBM Certified Solution Developer - WebSphere Message Broker V7.0 |
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| fmottais |
| Posted: Tue Sep 04, 2007 1:57 am Post subject: |
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Novice
Joined: 30 May 2007
Posts: 10
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thanks for your anwer.
I now arrive to read a message in the Dead Letter with JMS. |
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| fjb_saper |
| Posted: Tue Sep 04, 2007 2:44 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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If you are going single message by single message RFHUtil(IH03) has some capabilities in this field.
Enjoy 
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MQ & Broker admin |
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| jefflowrey |
| Posted: Tue Sep 04, 2007 2:55 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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You're much better off using a backout queue.
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I am *not* the model of the modern major general. |
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