In the order their mappings are defined in web.xml If using annotations (@WebFilter) the order seems to be undefined – you still have to declare the <filter-mapping> entries in web.xml.
Try injecting the HttpServletRequest and HttpServletContext directly: @Context private HttpServletRequest servletRequest; @Context private HttpServletContext servletContext;
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
See HttpServletRequest#getQueryString() If you want the whole string, you’ll have to append the request url and the query string together as there is no method to get the whole thing. System.out.println(request.getRequestURL().append(‘?’).append(request.getQueryString()));
You are confusing two paradigms here: REST is a software architecture “style”; Servlet is a server-side technology. You can, for example, implement REST-like services using Servlets.
There are 2 separate questions in here: Should I be using an embedded server, or deploy into a container? I don’t think you should be seeing a big difference one way or the other. There’s slightly more code to startup a Jetty server programmatically, and configuration is easier to do programmatically. Even though IDE support … Read more
javax.servlet-api version 3.0.1 has annotation folder which contains different annotation classes where servlet-api version 2.5 or below (i.e version 2.4) does not contain annotation. Annotation represents the metadata. If you use annotation, deployment descriptor i.e. web.xml is not required. For example if you use annotation like @WebServlet(“/hello”) in your servlet file then you don’t need … Read more
Looking at the definition of the Singleton Pattern as defined in the Cunningham & Cunningham, Inc. Wiki Ensure a class has only one instance, and provide a global point of access to it. I would say, no. From the perspective of the container one servlet object is accepted and managed including the creation of a … Read more
Try Openshift. https://www.openshift.com With 3 free gears you can setup Tomcat/JBoss and MySQL. It can be integrated with Eclipse and hot deployments are possible (via git). Also, to MySQL, you can add PhpMyAdmin controller.
No, you can’t. JavaScript is executed on the client side (browser), while the session data is stored on the server. However, you can expose session variables for JavaScript in several ways: a hidden input field storing the variable as its value and reading it through the DOM API an HTML5 data attribute which you can … Read more