Web Applications and Request-Response Model
One of the most important concepts for understanding Web applications is to know how the client's request is processed and how responses are produced as the client needs it. When we covered the important components of the Web application earlier in the chapter, we learned that the J2EE platform provides multiple flavors of servlets to cater to different protocols. One of the most popular and widely used servlet types in the Web application model is based on the HTTP protocol. The Servlet specification provides the necessary infrastructure in terms of APIs and other services for implementing this type of servlet. We'll use this servlet type to understand the request-response model as implemented for ...
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