vj#: Hello, everybody!
Does anyone have an experience of using MS-MQ messaging system under j#?
I have a trouble - I can't get message body, I always receive messages which
have bodylength==0. I'm using MS-MQ functionality which is accessible after
mqoa.dll reference addition. According MS description IMSMQQueue.Receive()
has four parameters, the third is so-called "WantBody", but I get messages
without bodies regardless of this parameter state. And moreover, I can get
messages with filled bodyes, which were sended by my j# example and were
retrieved by C++ client, not j#!
You can see my sources at http://magictale.com/download/MS_MQ-JS.zip

Thank you very much.

"Dmitry Pakhomenko" <Dmitry Pakhomenko@discussions.microsoft.com> wrote in
message news:D38B1FFF-E3DD-462B-A2C5-5DFE1D725FA3@microsoft.com...
[quoted text, click to view]


Ahh, You are trying to use the MSMQ COM library.

Ditch that old thing and use the System.Messaging

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemmessagingmessageclasstopic.asp


David

[quoted text, click to view]
messaging system under j#?


Yes, it's working very good.



[quoted text, click to view]


Your link is not working.

Do you have any code we can take a look at. Please post a small sample of
what you are trying to do here in plain text.



Regards,
Lars-Inge Tønnessen

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I beleive in that

[quoted text, click to view]
It's strange. A lot of people can access my site. Anyway....
Please take a look a my code:


---cut---

public static boolean receiveMSMQMessage(String computerName, String
queueName)
{
if ((computerName == null) || (queueName == null)) return false;
try
{
IMSMQQueueInfo qinfo = (IMSMQQueueInfo) new MSMQQueueInfoClass();
String formatName = "DIRECT=OS:" + computerName + queueName;
qinfo.set_FormatName(formatName);

IMSMQQueue pQueue = qinfo.Open ( (int)MQACCESS.MQ_RECEIVE_ACCESS,
(int)MQSHARE.MQ_DENY_NONE );
IMSMQMessage pMsg = null;

for ( ; ;)
{

Variant vtMissing = null;
Object obMissing = (Object) vtMissing;

Variant vtTimeout = new Variant((long)(3));
Object obTimeout = (Object) vtTimeout;

Variant vtWantBody = new Variant((boolean)false);
Object obWantBody = (Object) vtWantBody;

//I don't understand what is happening here - the method always returns
messages with empty body regardless
//obWantBody variable state. But if you try to retrieve these sended
messages using C++ client for example,
//you will get non-empty body!!!
pMsg = pQueue.Receive(obMissing, obMissing, obWantBody, obTimeout);
//-----------------------------------------------------------------------------------------------------

if (pMsg == null)
{
System.out.println("No more messages, closing queue " + formatName);
pQueue.Close();
break;
}
System.out.println("Message was received successfully");
System.out.println("Message label == " + pMsg.get_Label());
System.out.println("Message body length == " + pMsg.get_BodyLength());
System.out.println("Message body == '" + pMsg.get_Body() + "'");

System.out.println("Message CorrelationId == '" +
sBytesToStr(pMsg.get_CorrelationId()) + "'");
System.out.println("Message senderIdType == '" + pMsg.get_SenderIdType()
+ "'");

System.out.println("Removed message from queue " + formatName + "\n");
}

return true;
}
catch (System.Runtime.InteropServices.COMException ex)
{
System.out.println(ex);
}
return false;
}

---cut---

Best wishes,
Dmitry Pakhomenko

[quoted text, click to view]
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/
frlrfsystemmessagingmessageclasstopic.asp

O-h....
There is one more path to access to MSMQ
Thank you very much, David.

Best wishes, Dmitry
Dmitry

Please use the .net API. Here is one of my previous reply on using the MSMQ
with J#.

http://www.eggheadcafe.com/ng/microsoft.public.dotnet.vjsharp/post524418.asp


Regards,
Lars-Inge Tønnessen