The message format for both MQ and JMS consists of:
Message header – contains fixed-size portions and variable-sized portions of information specified by the standard. Most of this information is automatically assigned by the message provider.
Message body – is the application data that client applications exchange.
JMS defines structured message types, such as stream and map, and unstructured message types, such as text, byte, and object.
In MQ, the message body can contain both text and binary data.
