servlet-3.0

Within my Servlet-based application, I would like to log events for startup and shutdown. I've tried to implement the ServletContextListener interface to do this: public class DiagnosticListener implements ServletContextListener { private static final Logger LOG = LogManager.getLogger(DiagnosticListener.class); @Override public void contextInitialized( final ServletContextEvent sce ) { LOG.info("Context initialized."); } @Override public void contextDestroyed( final ServletContextEvent sce ) { LOG.info("Context destroyed."); } } The initialized event is logged as expected, but the destroyed

I've created servlet named MainContent. and I have such mapping <servlet> <display-name>MainContent</display-name> <servlet-name>MainContent</servlet-name> <servlet-class>ge.test.servlet.MainContent</servlet-class> </servlet> <servlet-mapping> <servlet-name>MainContent</servlet-name> <url-pattern>/main</url-pattern> </servlet-mapping> so, when I go to the link: //localhost:8080/MyAppl/main I enter into the servlets doGet() method. Then I create RequestDispatcher forward to the index.jsp. everything works! RequestDispatcher rd = context.getRequestDispatcher("/index.jsp?language="+ lang); rd

We have an application which keeps loading instances of ServletContainerInitializer from our 3rd party libs. One instance is JerseyServletContainerInitializer and the other is SpringServletContainerInitializer. These classes from Jersey and Spring seem to "take over" our servlet context messing with our mappings and filters and such. We really need to explicitly configure our servlet container's web.xml and this auto scanning is driving us insane. By simply pulling in a dependency in our pom.xml our runtime ServletContext configurations such as Servlets/Filters/ContextListeners are mutated

Can someone help me with a minimal project setup with Spring Boot and Struts2? I have already create a Spring Boot application with a H2-database. I also added a h2Configuration class, so that I'm able to access the database with localhost:8080/console . But how can I add Struts2 to my Application without web.xml ? Without web.xml you can only write a Struts2 filter using servlet 3.0 or higher @WebFilter("/*") public class Struts2Filter extends Struts2PrepareAndExecuteFilter { } The content could be empty, it's enough to add annotated filter without any inclusion in the web.xml file. If you

I'm having a problem with my applet. I have a school project where I'm supposed to make a pong-online game. It runs fine offline but when I try to load it from a server I just get an empty frame with a red text in it. when I click the text I get the message: incompatible magic value 1013478509 I'm using jetty-all-8.1.8.v20121106.jar, and servlet-api-3.0.jar The class that starts up the server looks like this: public class TheServer extends HttpServlet { private static final long serialVersionUID = 1L; private Scanner sc; private String webSite; private PrintWriter out; @Override protected void

This question already has an answer here: How to upload files to server using JSP/Servlet? 12 answers I am trying to upload an file via a form in a JSP file, but I'm getting this error. The servlet already has the @MultipartConfig notation. I'm using servlet 3.0 and apache tomcat 8. Error message: java.lang.IllegalStateException: Unable to process parts as no multi-part configuration has been provided on line Collection<Part> parts = request.getParts();` I had to add allowCasualMultipartParsing="true" on context tag inside context.xml 来源： https://stackoverflow.com/questions/24578680/error

In Servlets 3.0 we have to import the annotations package. So i want to know what are classes and interfaces? import javax.servlet.annotation.WebServlet; What is here servlet, annotation and WebServlet a class or interface in the javax package? Ramesh PVK Before annotations the only way to define any deployment properties was using deployments descriptors. For Web Applications, it was web.xml. From JavaEE 5 annotations were supported which lets you define certain deployment properties. They were mostly related to resources the servlets used. But still the servlets has to defined in web.xml

I have an old servlet ABC using a web.xml to define it's form login (which is another servlet XYZ stored in another JAR file and integrated in the WAR under path WEB-INF\lib): <login-config> <auth-method>FORM</auth-method> <form-login-config> <form-login-page>/login</form-login-page> <form-error-page>/login?event=Retry</form-error-page> </form-login-config> </login-config> Now I migrated servlet ABC using the new Servlet 3.0 annotations. I have a @WebServlet and a @ServletSecurity annotation. But how do I define that my login configuration is a form based login ( auth-method in web.xml) and