I would like to build a web application , how to do that with flex? I already build an application by making use of JSP, Servlets, Java, Oracle for database and Tomcat. Now i want to integrate Flex into my application. Now the question is, what are all needed to build an application with flex, that application should make use of database. Its like web application. Please clarify my doubt. I'm very thankful to you all. As i already aware with JSP, Tomcat please direct me in that way. Don't sugest me PHP, coldfusion like that. Thank you.