Integrating Servlets and JSP: The Model View Controller - Java ...

Request-Based Data Sharing• ServletSomeBean value = LookupService.findResult(...);request.setAttribute("key", value);RequestDispatcher dispatcher =request.getRequestDispatcher("/WEB-INF/SomePage.jsp");dispatcher.forward(request, response);24• JSP 2.0${key.someProperty}• JSP 1.2 (Old!)Name chosen by the servlet.Name of accessor method, minus theword “get”, with next letter changedto lower case.Request-Based Data Sharing:Simplified Example• ServletCustomer myCustomer =Lookup.findCust(request.getParameter("customerID"));request.setAttribute("customer", myCustomer);RequestDispatcher dispatcher =request.getRequestDispatcher("/WEB-INF/SomePage.jsp");dispatcher.forward(request, response);• JSP 2.0${customer.firstName}Assume that the findCust methodhandles missing/malformed data.Note: the Customer class musthave a method called “getFirstName”.• JSP 1.225