Application architectures for Interactive Web Applications ：交互式Web应用程序的应用程序架构.pptVIP

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Application architectures for Interactive Web Applications ：交互式Web应用程序的应用程序架构.ppt

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Application architectures for Interactive Web Applications ：交互式Web应用程序的应用程序架构

I18N Internationalization Language and Cultural differences Dates Times Browser sends header: Accept-language: en-us First two characters choose template file: guestbook_en.html guestbook_it.html Example: /~fontanini/fm/guestbook.jsp Conclusion JSP is Java that looks like HTML Custom Tags make programming “easy” Separation of business logic and presentation is desirable for larger “Enterprise” projects JSP alone does not achieve this separation EJB, and other technologies are complicated Template processing provides the desired separation, rather easily and elegantly. Thank you for attending. Any questions? Application Architectures for Interactive Web Applications: Java JSP and Model/View/ControllerTechniques Jeff Schmitt November 16, 2001 ABSTRACT This talk is the report of my sabbatical leave during Spring 2001 in which I explored some new techniques in using the Java language to develop interactive web applications. Java Server Pages technology (JSP) facilitates the development of interactive websites with dynamically generated content. JSP programs contain ordinary HTML tags mixed with Java code. Custom tag libraries and Template processing are techniques which allow the Java code to be isolated from the HTML. This application architecture is based on the principles of Model/View/Controller. Web Application Components Client -- typically a Web Browser HTTP -- request, response protocol between client and server HTML files -- static web content Webserver -- serves HTML files and looks for certain request patterns, then forwards request to servlet engine, for example: /servlet/* Servlet Engine -- supports execution of servlets Servlet -- handles request from client, generates response to client JSP Engine -- supports the compilation of files into Servlets Web Application -- a collection of HTML files, Servlets and JSP pages to implement an information system on the web. Tiered Systems Single Tier -- Mainframe LAN Two Tier- Client-Server INTERNET Databa