Abstract

This document presents a case study of implementing a server side Model View Controller (MVC) design pattern using JSP and Servlet technologies. From the example, we can understand how and why this pattern and these technologies work so well when developing server-side Java Web applications. On-Line City Weather Forecast System is a Web application that runs on Tomcat Web server. Its raw data comes from an existing weather Website, http://weatheroffice.ec.gc.ca . The system consists of two parts: one for processing weather data, the other for visualizing weather conditions. The primary audience for the system is weather database administrator but is also developed to provide nonadministrator ability to view current weather as well as weather forecast for next 5 days. A weather processor is designed to parse and select data from the real-time weather Web site and save it in users designated database created by MS Access on the local server. A weather server delivers a subset of this data to the clients in response to a query formulated in a SQL statement.