Examples of org.springframework.web.context.support.AnnotationConfigWebApplicationContext

Package org.springframework.web.context.support

Examples of org.springframework.web.context.support.AnnotationConfigWebApplicationContext

org.springframework.web.context.support.AnnotationConfigWebApplicationContext
{@link org.springframework.web.context.WebApplicationContext WebApplicationContext}implementation which accepts annotated classes as input - in particular {@link org.springframework.context.annotation.Configuration @Configuration}-annotated classes, but also plain {@link org.springframework.stereotype.Component @Component}classes and JSR-330 compliant classes using {@code javax.inject} annotations. Allowsfor registering classes one by one (specifying class names as config location) as well as for classpath scanning (specifying base packages as config location).
This is essentially the equivalent of {@link org.springframework.context.annotation.AnnotationConfigApplicationContext AnnotationConfigApplicationContext} for a web environment.
To make use of this application context, the {@linkplain ContextLoader#CONTEXT_CLASS_PARAM "contextClass"} context-param forContextLoader and/or "contextClass" init-param for FrameworkServlet must be set to the fully-qualified name of this class.
As of Spring 3.1, this class may also be directly instantiated and injected into Spring's {@code DispatcherServlet} or {@code ContextLoaderListener} when using thenew {@link org.springframework.web.WebApplicationInitializer WebApplicationInitializer}code-based alternative to {@code web.xml}. See its Javadoc for details and usage examples.
Unlike {@link XmlWebApplicationContext}, no default configuration class locations are assumed. Rather, it is a requirement to set the {@linkplain ContextLoader#CONFIG_LOCATION_PARAM "contextConfigLocation"}context-param for {@link ContextLoader} and/or "contextConfigLocation" init-param forFrameworkServlet. The param-value may contain both fully-qualified class names and base packages to scan for components. See {@link #loadBeanDefinitions}for exact details on how these locations are processed.
As an alternative to setting the "contextConfigLocation" parameter, users may implement an {@link org.springframework.context.ApplicationContextInitializer ApplicationContextInitializer} and set the{@linkplain ContextLoader#CONTEXT_INITIALIZER_CLASSES_PARAM "contextInitializerClasses"}context-param / init-param. In such cases, users should favor the {@link #refresh()}and {@link #scan(String)} methods over the {@link #setConfigLocation(String)}method, which is primarily for use by {@code ContextLoader}
Note: In case of multiple {@code @Configuration} classes, later {@code @Bean}definitions will override ones defined in earlier loaded files. This can be leveraged to deliberately override certain bean definitions via an extra Configuration class. @author Chris Beams @author Juergen Hoeller @since 3.0 @see org.springframework.context.annotation.AnnotationConfigApplicationContext

  public void contextInitialized(ServletContextEvent sce) {
    ServletContext servletContext = sce.getServletContext();


    log.debug("Configuring Spring root application context");
    
    AnnotationConfigWebApplicationContext rootContext = null;
    
    if (context == null) {
        rootContext = new AnnotationConfigWebApplicationContext();
        rootContext.register(ApplicationConfiguration.class);
        rootContext.refresh();
    } else {
        rootContext = context;
    }


    servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, rootContext);

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  /**
   * Initializes Spring and Spring MVC.
   */
  private ServletRegistration.Dynamic initSpring(ServletContext servletContext, AnnotationConfigWebApplicationContext rootContext) {
    log.debug("Configuring Spring Web application context");
    AnnotationConfigWebApplicationContext dispatcherServletConfiguration = new AnnotationConfigWebApplicationContext();
    dispatcherServletConfiguration.setParent(rootContext);
    dispatcherServletConfiguration.register(DispatcherServletConfiguration.class);


    log.debug("Registering Spring MVC Servlet");
    ServletRegistration.Dynamic dispatcherServlet = servletContext.addServlet("dispatcher", new DispatcherServlet(dispatcherServletConfiguration));
    dispatcherServlet.addMapping("/service/*");
    dispatcherServlet.setLoadOnStartup(1);

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    server = new Server(HTTP_SERVER_PORT);
      
    HashSessionIdManager idmanager = new HashSessionIdManager();
    server.setSessionIdManager(idmanager);
    
    AnnotationConfigWebApplicationContext applicationContext = new AnnotationConfigWebApplicationContext();
    applicationContext.register(JPAApplicationConfiguration.class);
    applicationContext.refresh();
      
    appContext = applicationContext;
      
    try {
      server.setHandler(getServletContextHandler(applicationContext));

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  @Override
  public void contextDestroyed(ServletContextEvent sce) {
    log.info("Destroying Web application");
    WebApplicationContext ac = WebApplicationContextUtils.getRequiredWebApplicationContext(sce.getServletContext());
    AnnotationConfigWebApplicationContext gwac = (AnnotationConfigWebApplicationContext) ac;
    gwac.close();
    log.debug("Web application destroyed");
  }

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public class Initializer implements WebApplicationInitializer {


  public void onStartup(ServletContext servletContext)
      throws ServletException {
    AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();
    ctx.register(WebAppConfig.class);
    servletContext.addListener(new ContextLoaderListener(ctx));


    ctx.setServletContext(servletContext);


    Dynamic servlet = servletContext.addServlet("dispatcher", new DispatcherServlet(ctx));
    servlet.addMapping("/");
    servlet.setLoadOnStartup(1);
  }

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    }


    @Given("^I have a web application with javaconfig in package \"([^\"]*)\"$")
    public void I_have_a_web_application_with_javaconfig_in_package(String scanPackage) throws Throwable {
        MockServletContext sc = new MockServletContext("");
        AnnotationConfigWebApplicationContext appContext = new AnnotationConfigWebApplicationContext();
        appContext.scan(scanPackage);
        appContext.setServletContext(sc);
        appContext.refresh();


        this.wac = appContext;


        this.hm = appContext.getBean(RouterHandlerMapping.class);
        this.ha = appContext.getBean(RequestMappingHandlerAdapter.class);
    }

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    private static final String DISPATCHER_SERVLET_MAPPING = "/";


    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {
        //If you want to use the XML configuration, comment the following two lines out.
        AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
        rootContext.register(ExampleApplicationContext.class);


        //If you want to use the XML configuration, uncomment the following lines.
        //XmlWebApplicationContext rootContext = new XmlWebApplicationContext();
        //rootContext.setConfigLocation("classpath:exampleApplicationContext.xml");

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  public void contextInitialized(ServletContextEvent sce) {
    ServletContext servletContext = sce.getServletContext();


    log.debug("Configuring Spring root application context");
    
    AnnotationConfigWebApplicationContext rootContext = null;
    
    if (context == null) {
        rootContext = new AnnotationConfigWebApplicationContext();
        rootContext.register(JPAApplicationConfiguration.class);
        rootContext.refresh();
    } else {
        rootContext = context;
    }


    servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, rootContext);

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  /**
   * Initializes Spring and Spring MVC.
   */
  private ServletRegistration.Dynamic initSpring(ServletContext servletContext, AnnotationConfigWebApplicationContext rootContext) {
    log.debug("Configuring Spring Web application context");
    AnnotationConfigWebApplicationContext dispatcherServletConfiguration = new AnnotationConfigWebApplicationContext();
    dispatcherServletConfiguration.setParent(rootContext);
    dispatcherServletConfiguration.register(DispatcherServletConfiguration.class);


    log.debug("Registering Spring MVC Servlet");
    ServletRegistration.Dynamic dispatcherServlet = servletContext.addServlet("dispatcher", new DispatcherServlet(dispatcherServletConfiguration));
    dispatcherServlet.addMapping("/service/*");
    dispatcherServlet.setLoadOnStartup(1);

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  @Override
  public void contextDestroyed(ServletContextEvent sce) {
    log.info("Destroying Web application");
    WebApplicationContext ac = WebApplicationContextUtils.getRequiredWebApplicationContext(sce.getServletContext());
    AnnotationConfigWebApplicationContext gwac = (AnnotationConfigWebApplicationContext) ac;
    gwac.close();
    log.debug("Web application destroyed");
  }

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