前回はJavaアプリケーションを使い非同期通信の世界を紹介しました。今回はWebアプリケーションにMessage-Driven Beanを組み込み、業務でも使えるようにします。

Message-driven beans never involved the concept of a home and a remote, or local, interface. In EJB 3.0, the MessageDriven annotation is used to mark and specify a message-driven bean.

Messaging becomes the obvious choice because of its inherent asynchronous nature and strong integration with J2EE application servers via JMS (Java Message Service) and message-driven beans (MDBs).