No WebApplicationContext found: no ContextLoaderListener registered?

You’ll have to have a ContextLoaderListener in your web.xml – It loads your configuration files. <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> You need to understand the difference between Web application context and root application context . In the web MVC framework, each DispatcherServlet has its own WebApplicationContext, which inherits all the beans already defined in the root WebApplicationContext. … Read more

What exactly is the web-app version? What does it affect?

Web.xml is a central place where you define the configuration of your Web application. For instance you can specify there: servlet mapping, i.e. which URL path refers to which Java class (e.g. when user types http://something.com/Koray you can point that request to KorayServlet.java class where you keep the implementation of the servlet) authorization parameters, e.g. … Read more

How to add filters to servlet without modifying web.xml

Just do the same job as the container already does. I.e. reinvent the wheel of the chain of responsibility design pattern as is under the covers been used by servlet filters. public class GodFilter implements Filter { private Map<Pattern, Filter> filters = new LinkedHashMap<Pattern, Filter>(); @Override public void init(FilterConfig config) throws ServletException { Filter1 filter1 … Read more

What does this web.xml error mean?

If you replace j2ee by javaee, it will work fine. EDIT : <web-app version=”2.5″ xmlns=”http://java.sun.com/xml/ns/javaee” xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:schemaLocation=”http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd”> Edit: To know anything further related to this error. Please follow the Link. Here you will find schemas for Java EE deployment descriptors (web.xml).

Overview of all JSF-related web.xml context parameter names and values [closed]

First of all, those starting with facelets. are not JSF context parameters, but Facelets 1.x context parameters. Previously, during JSF 1.x era, Facelets was not integrated as part of JSF. However, since JSF 2.0, Facelets is integrated as part of JSF, replacing legacy JSP as the default view technology, and most of the Facelets 1.x … Read more

Do I really need web.xml for a Servlet based Java web application?

You don’t need a web.xml file if you have a container that supports the latest j2ee specs. Here is a link to an simple servlet example that use an annotation and here you can find the same for Spring MVC; I post the example here for you convenience public class MyWebApplicationInitializer implements WebApplicationInitializer { @Override … Read more

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