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Web Applications A Client/Server Computing Model ClientComputerBrowserServerComputerHTTPService HTTP REQUEST HTTP RESPONSE (URL,Post,Get,parameters,..)

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Presentation on theme: "Web Applications A Client/Server Computing Model ClientComputerBrowserServerComputerHTTPService HTTP REQUEST HTTP RESPONSE (URL,Post,Get,parameters,..)"— Presentation transcript:

1 Web Applications A Client/Server Computing Model ClientComputerBrowserServerComputerHTTPService HTTP REQUEST HTTP RESPONSE (URL,Post,Get,parameters,..) (XHTML,contents,...) ( A Generic Diagram ) A State-less Environment S. Kwan

2 XHTML HTML StyleSheets XML CascadingStyleSheets(CSS)ExtensibleStylesheetLanguage(XSL) StructureFormatContent Dynamic JavaScript & DocumentObjectModel(DOM) S. Kwan

3 Web Applications ClientBrowser (state A) HTTPServer HTTP REQUEST HTTP RESPONSE New Page Default Synchronous Processing Scenario ClientBrowser (state B) e.g. SJSU A State-less Environment (state A) (state A + … = state B) S. Kwan

4 ClientBrowser (state D) Web Applications ClientBrowser (state A) HTTPServer REQUEST RESPONSE – RESPONSE – New Page Asynchronous Processing Scenario ClientBrowser (state C) ClientBrowser (state B) REQUEST/RESPONSE REQUEST/RESPONSE Using XMLHttpRequest Object S. Kwan


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