EJB and WebServices

Introduction

Web Services have become an opportunity for integrating disparate IT systems, interconnecting a company’s business processes as well as linking different enterprises. Like other platforms, the J2EE platform has recently integrated APIs and tools to create those services. Thus, what are the concepts those APIs and tools are based on? Which issues do web service developers have to face?

In order to get an overview of the web service concept, this WIKI entry will present the idea of web services, its participating protocols and the Java API to create and access web services based on Enterprise Java Beans. Finally, it will address one of the issues related to web services: the security aspect.

Contents

• Definition - Web Services
• XML Namespaces
• The web service protocols
  • SOAP
  • UDDI
  • WSDL
• JAX-RPC
  • The client side programming model
  • The server side programming model
• WS Security
• Bibliography