| Author |
Message
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| ppraveen33 |
 Posted: Tue Jan 14, 2014 1:25 am Post subject: REG: Reading a message from a queue using Java Application |
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Apprentice
Joined: 26 Jun 2013
Posts: 36
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HI,
My scenario is a Java Program needs to read a message from a Queue. Consider Each message contains mqrfh2 headers and its elements. I need to access those elements. For this I have developed a java code as follows.
| Code: |
public class Read {
private String qManager = "IB9QMGR"; // define name of queue
// manager to connect to.
private MQQueueManager qMgr; // define a queue manager
// object
public static void main(String args[]) {
new Read();
}
public Read() {
try {
// Create a connection to the queue manager
qMgr = new MQQueueManager(qManager);
// Set up the options on the queue we wish to open...
// Note. All WebSphere MQ Options are prefixed with MQC in Java.
int openOptions = MQC.MQOO_INPUT_AS_Q_DEF |
MQC.MQOO_OUTPUT ;
// Now specify the queue that we wish to open,
// and the open options...
MQQueue system_default_local_queue =
qMgr.accessQueue("Q2",
openOptions);
// Define a simple WebSphere MQ message, and write some text in UTF format..
MQMessage hello_world = new MQMessage();
/*hello_world.writeUTF("Hello World!");
String src=hello_world.getStringProperty("usr/EAIhEADER/SRC"); */
// specify the message option
MQPutMessageOptions pmo = new MQPutMessageOptions(); // accept the // defaults,
//same as MQPMO_DEFAULT
put the message on the queue
system_default_local_queue.put(hello_world,pmo);
// get the message back again...
// First define a WebSphere MQ message buffer to receive the message into..
MQMessage retrievedMessage = new MQMessage();
retrievedMessage.messageId = hello_world.messageId;
// Set the get message options...
MQGetMessageOptions gmo = new MQGetMessageOptions(); // accept the defaults
// same as MQGMO_DEFAULT
// get the message off the queue...
system_default_local_queue.get(retrievedMessage, gmo);
//retrievedMessage.writeUTF("Hello World!");
String srcQ=retrievedMessage.getStringProperty("SRCQ"); |
I am passing MQRFH2 headers data using rfhutil by giving usr data(<srcQ>Q2</srcQ>). I am able to get the srcQ. But In usr we will be having EAIHdr folder,in that sub elements. So when I am passing the same message by giving usr data(<EAIHdr><srcQ>Q2</srcQ></EAIHdr>) I am unable to retrieve the queue name
Can anyone help on this?? |
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| smdavies99 |
| Posted: Tue Jan 14, 2014 3:16 am Post subject: |
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Jedi Council
Joined: 10 Feb 2003
Posts: 6076
Location: Somewhere over the Rainbow this side of Never-never land.
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Please edit your post and wrap bits of code inside [ C O D E ] tags
for example
| Code: |
public class Read {
private String qManager = "IB9QMGR"; // define name of queue
// manager to connect to.
private MQQueueManager qMgr; // define a queue manager
// object
public static void main(String args[]) {
new Read();
}
|
This makes it a lot easier to read.
Moderators. Can this be moved to the Java forum
_________________
WMQ User since 1999
MQSI/WBI/WMB/'Thingy' User since 2002
Linux user since 1995
Every time you reinvent the wheel the more square it gets (anon). If in doubt think and investigate before you ask silly questions. |
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| Vitor |
| Posted: Tue Jan 14, 2014 5:40 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| smdavies99 wrote: |
| Moderators. Can this be moved to the Java forum |
So moved
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| Vitor |
| Posted: Tue Jan 14, 2014 5:43 am Post subject: Re: REG: Reading a message from a queue using Java Applicati |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| ppraveen33 wrote: |
| Can anyone help on this?? |
Yes - you need to code the Java correctly to achieve this. The segement you posted does not appear to be so coded in that it doesn't allow for sub folders.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| fjb_saper |
| Posted: Tue Jan 14, 2014 7:00 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20768
Location: LI,NY
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Also you need to read up on what you are coding.
You don't use msg.write to a message you just retrieved... 
_________________
MQ & Broker admin |
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| PeterPotkay |
| Posted: Tue Jan 14, 2014 7:51 am Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7723
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| smdavies99 wrote: |
Please edit your post and wrap bits of code inside [ C O D E ] tags
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I added the code tags.
_________________
Peter Potkay
Keep Calm and MQ On |
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