I found a better answer in this post [ How do you detect the URL in a Java Servlet when forwarding to JSP? ] On the target JSP use: request.getAttribute(“javax.servlet.forward.request_uri”) To find out what the original URL was. It doesn’t require you to take any extra steps on the forwarding servlet
The compiled JSP files are by default available in the /work folder of the Tomcat environment. There should be a subfolder Catalina which in turn has a subfolder representing the domain name which defaults to localhost. There in turn should be the project folder which in turn contains package hierarchy org.apache.jsp with therein the compiled … Read more
Personally, I’d keep the same setup you have now, but change the redirect for a forward. That avoids sending a header back to the client and having them make another request. So, in particular, I’d replace the <% response.sendRedirect(“/myproject/MyAction.action”); %> in index.jsp with <jsp:forward page=”/MyAction.action” /> The other effect of this change is that the … Read more
You can mark variables as “silent” like this: $!variable If $variable is null, nothing will be rendered. If it is not null, its value will render as it normally would.
The major difference between Spring MVC and Struts is: Spring MVC is loosely coupled framework whereas Struts is tightly coupled. For enterprise Application you need to build your application as loosely coupled as it would make your application more reusable and robust as well as distributed.
They were most likely looking for examples of web frameworks – for example, JSF is a component-based framework, and Struts is a request-based framework. Request-based frameworks generally make it clear through their APIs that they’re working with parsing an HTML request / generating an HTML response, while Component-based frameworks attempt to abstract this away and … Read more
To check if a variable is not null simply use #if ($variable) #if ($variable) … do stuff here if the variable is not null #end If you need to do stuff if the variable is null simply negate the test #if (!$variable) … do stuff here if the variable is null #end
Address already in use: JVM_Bind means that some other application is already listening on the port your current application is trying to bind. what you need to do is, either change the port for your current application or better; just find out the already running application and kill it. on Linux you can find the … Read more
Localhost is device’s own loopback interface, if you’re trying to access your development machine use 10.0.2.2. More about it here.