Filters are pluggable classes that stand between the client and a target component (like a servlet or JSP), within a web application. We can do pre or post processing of request/response data while it is coming from client to a servlet or from the servlet back to a client.
Create a Servlet TargetServlet with URL Pattern as “/TargetServlet” and print some content to console from its doGet method. Code for TargetServlet is given in the end.
RequestDispatcher mechanism used for forwarding to and including other resources. We will understand the basics of RequestDispatcher mechanism using a simple exercise.
Before proceeding, you need to configure your eclipse and tomcat. I am using eclipse Eclipse Java EE IDE for Web Developers version: Luna and Apache Tomcat version 8.0.18. Apache Tomcat version 8.0.18 support Servlet Spec 3.1, JSP Spec 2.3, EL Spec 3.0, WebSocket spec 1.1 and support java version 7 and above.
We will write a simple JavaFX application that displays a “Hello World” button. We will handle any button click events to print “Hello World” in the console. The program can be run from command line or from an IDE like eclipse, but without the Eclipse Plugin for JavaFX and Scene builder.
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