11.8 Summary
This chapter described how to develop a Web application with database access. Because XML has become a first-class format for exchanging business data, it is very important to determine the method for storing an XML document in and retrieving it from a database梚n particular, RDMBS. This chapter also discussed how to develop a three-tier Web application with Servlet and EJB. They are becoming a common framework for developing highly scalable and reliable Web applications.
This chapter described how to integrate databases in a three-tier architecture. As you know, the Web is distributed and very dynamic. A huge amount of Web pages and (HTML-based) services are on the Web. Recently, a new architecture to provide services in a very dynamic way on the Web is receiving attention. The next two chapters describe it梂eb services.
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