By Giulio Zambon
Commence development Java-based net purposes now, no matter if you are a whole newcomer to Java. complete and example-driven, starting JSPT, JSFT, and Tomcat internet improvement is all you must boost dynamic net purposes utilizing JSP, connect with databases with JSF, and positioned them into motion utilizing the world's preferred open resource Java net server, Apache Tomcat. * A finished creation to JavaServer Pages (JSP), JavaServer Faces (JSF), and the Apache Tomcat internet program server * Key thoughts made effortless to know through a variety of operating examples and a walkthrough of the improvement of a whole e-commerce undertaking * Written for pros through a training Java net software specialist and professional
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Extra info for Beginning JSP, Jsf and Tomcat Web Development
However, notice that the form to ask the servlet to do the checkout is only displayed to the buyer when the shopping cart isn’t empty. jsp will send a request to the servlet with the hidden parameter do_this set to checkout. Finally, notice that some elements enclosed within <%= and %> are mixed inside the normal HTML. getQuantity()%>. These elements let you embed values resulting from JSP expressions in HTML without having to execute scriptlets. The first expression, <%=i%>, is the position of the book within the shopping cart.
Order Although this sample application doesn’t cover orders, we think it’s useful to specify how you should structure it. You need two separate classes: one to represent the ordered items, and one with the customer’s data. For each ordered item, you should save the book data obtained from the shopping cart. The Order object should include all the customer data and define a unique order number. The Customer Interface Figure 2-1 shows the home page of the online bookshop. The top includes a link to the shopping cart, while the sidebar on the left features a search box and a list of categories.
Several custom actions have become so widely used in the programming community that Sun Microsystems decided to standardize them. The result is JSTL. Scripting Elements and Java A JSP page consists of a page template, which is composed of HTML code, as well as JSP elements, such as directives, scripting elements, and standard actions. 1 Every Java executable—whether it’s a free-standing program running directly within a runtime environment, an applet executing inside a browser, or a servlet executing in a container such as Tomcat—boils down to instantiating classes into objects and executing their methods.
Beginning JSP, Jsf and Tomcat Web Development by Giulio Zambon