3.6. Messages
The ultimate purpose of a JMS application is to produce and to consume messages that can then be used by other software applications. JMS messages have a basic format that is simple but highly flexible, allowing you to create messages that match formats used by non-JMS applications on heterogeneous platforms.
A JMS message has three parts:
A header
Properties (optional)
A body (optional)
For complete documentation of message headers, properties, and bodies, see the documentation of the Message interface in Chapter 25.
3.6.1. Message Headers
A JMS message header contains a number of predefined fields that contain values that both clients and providers use to identify and to route messages. (Table 3.1 lists the JMS message header fields ...
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