A message producer is an object that is created by a session and used for sending messages to a destination. It implements the MessageProducer interface.
You use a Session to create a MessageProducer for a destination. The following examples show that you can create a producer for a Destination object, a Queue object, or a Topic object:
MessageProducer producer = session.createProducer(dest); MessageProducer producer = session.createProducer(queue); MessageProducer producer = session.createProducer(topic);
You can create an unidentified producer by specifying null as the argument to createProducer. With an unidentified producer, you do not specify a destination until you send a message.
After you have created a message producer, you can use it to send messages by using the send method:
You must first create the messages; see JMS Messages.
If you created an unidentified producer, use an overloaded send method that specifies the destination as the first parameter. For example:
MessageProducer anon_prod = session.createProducer(null); anon_prod.send(dest, message);