Java Code Examples for org.springframework.web.context.support.WebApplicationContextUtils#getRequiredWebApplicationContext()

@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
    if(erpUserService == null) {
        System.out.println("erpUserService is null!!!");
        BeanFactory factory = WebApplicationContextUtils.getRequiredWebApplicationContext(request.getServletContext());
        erpUserService = (ErpUserService) factory.getBean("erpUserService");
    }
    ErpUser user = erpUserService.findUserByLoginName(MySysUser.loginName());
    if(user != null) {
        // 通过拦截器，将登录用户信息存储，便于登录后展示
        request.setAttribute("currentUser", user);
        // 将登录用户名写入MDC中，方便后面mybatis拦截器中对createby  updateby字段赋值
        MDC.put("userid", MySysUser.loginName());
        return true;
    }
    return false;
}
 

/**
 * Look up the EntityManagerFactory that this filter should use.
 * <p>The default implementation looks for a bean with the specified name
 * in Spring's root application context.
 * @return the EntityManagerFactory to use
 * @see #getEntityManagerFactoryBeanName
 */
protected EntityManagerFactory lookupEntityManagerFactory() {
	WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());
	String emfBeanName = getEntityManagerFactoryBeanName();
	String puName = getPersistenceUnitName();
	if (StringUtils.hasLength(emfBeanName)) {
		return wac.getBean(emfBeanName, EntityManagerFactory.class);
	}
	else if (!StringUtils.hasLength(puName) && wac.containsBean(DEFAULT_ENTITY_MANAGER_FACTORY_BEAN_NAME)) {
		return wac.getBean(DEFAULT_ENTITY_MANAGER_FACTORY_BEAN_NAME, EntityManagerFactory.class);
	}
	else {
		// Includes fallback search for single EntityManagerFactory bean by type.
		return EntityManagerFactoryUtils.findEntityManagerFactory(wac, puName);
	}
}
 

/**
 * Look up the EntityManagerFactory that this filter should use.
 * <p>The default implementation looks for a bean with the specified name
 * in Spring's root application context.
 * @return the EntityManagerFactory to use
 * @see #getEntityManagerFactoryBeanName
 */
protected EntityManagerFactory lookupEntityManagerFactory() {
	WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());
	String emfBeanName = getEntityManagerFactoryBeanName();
	String puName = getPersistenceUnitName();
	if (StringUtils.hasLength(emfBeanName)) {
		return wac.getBean(emfBeanName, EntityManagerFactory.class);
	}
	else if (!StringUtils.hasLength(puName) && wac.containsBean(DEFAULT_ENTITY_MANAGER_FACTORY_BEAN_NAME)) {
		return wac.getBean(DEFAULT_ENTITY_MANAGER_FACTORY_BEAN_NAME, EntityManagerFactory.class);
	}
	else {
		// Includes fallback search for single EntityManagerFactory bean by type.
		return EntityManagerFactoryUtils.findEntityManagerFactory(wac, puName);
	}
}
 

/**
 * Look up the EntityManagerFactory that this filter should use.
 * <p>The default implementation looks for a bean with the specified name
 * in Spring's root application context.
 * @return the EntityManagerFactory to use
 * @see #getEntityManagerFactoryBeanName
 */
protected EntityManagerFactory lookupEntityManagerFactory() {
	WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());
	String emfBeanName = getEntityManagerFactoryBeanName();
	String puName = getPersistenceUnitName();
	if (StringUtils.hasLength(emfBeanName)) {
		return wac.getBean(emfBeanName, EntityManagerFactory.class);
	}
	else if (!StringUtils.hasLength(puName) && wac.containsBean(DEFAULT_ENTITY_MANAGER_FACTORY_BEAN_NAME)) {
		return wac.getBean(DEFAULT_ENTITY_MANAGER_FACTORY_BEAN_NAME, EntityManagerFactory.class);
	}
	else {
		// Includes fallback search for single EntityManagerFactory bean by type.
		return EntityManagerFactoryUtils.findEntityManagerFactory(wac, puName);
	}
}
 

/** @see javax.servlet.Servlet#init(javax.servlet.ServletConfig). */
  public void init() {
      WebApplicationContext context = WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());
      ApplicationContextFactory.setWebApplicationContext(context);
      
      // Initialise the permission mapping strategy.
      PermissionMappingStrategy strategy = (PermissionMappingStrategy) context.getBean("permissionMappingStrategy");
      PermissionMappingStrategy.setStrategy(strategy);
      
      // Add the default SSLContext provider for SSL, used by the ldaps protocol
      try {
	Security.addProvider(SSLContext.getDefault().getProvider());
} catch (NoSuchAlgorithmException e) {
	log.warn("Error adding SSL Provider to startup servlet.", e);
}   
  }
 

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

@Test
public void testContextLoaderListenerWithProgrammaticInitializers() {
	MockServletContext sc = new MockServletContext("");
	sc.addInitParameter(ContextLoader.CONFIG_LOCATION_PARAM,
			"org/springframework/web/context/WEB-INF/ContextLoaderTests-acc-context.xml");
	ContextLoaderListener listener = new ContextLoaderListener();
	listener.setContextInitializers(new TestContextInitializer(), new TestWebContextInitializer());
	listener.contextInitialized(new ServletContextEvent(sc));
	WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(sc);
	TestBean testBean = wac.getBean(TestBean.class);
	assertThat(testBean.getName(), equalTo("testName"));
	assertThat(wac.getServletContext().getAttribute("initialized"), notNullValue());
}
 

/**
 * Look up the SessionFactory that this filter should use.
 * <p>The default implementation looks for a bean with the specified name
 * in Spring's root application context.
 * @return the SessionFactory to use
 * @see #getSessionFactoryBeanName
 */
protected SessionFactory lookupSessionFactory() {
	if (logger.isDebugEnabled()) {
		logger.debug("Using SessionFactory '" + getSessionFactoryBeanName() + "' for OpenSessionInViewFilter");
	}
	WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());
	return wac.getBean(getSessionFactoryBeanName(), SessionFactory.class);
}
 

@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");
}
 

@Test
public void testContextLoaderListenerWithLocalContextInitializers() {
	MockServletContext sc = new MockServletContext("");
	sc.addInitParameter(ContextLoader.CONFIG_LOCATION_PARAM,
			"org/springframework/web/context/WEB-INF/ContextLoaderTests-acc-context.xml");
	sc.addInitParameter(ContextLoader.CONTEXT_INITIALIZER_CLASSES_PARAM, StringUtils.arrayToCommaDelimitedString(
			new Object[] {TestContextInitializer.class.getName(), TestWebContextInitializer.class.getName()}));
	ContextLoaderListener listener = new ContextLoaderListener();
	listener.contextInitialized(new ServletContextEvent(sc));
	WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(sc);
	TestBean testBean = wac.getBean(TestBean.class);
	assertThat(testBean.getName(), equalTo("testName"));
	assertThat(wac.getServletContext().getAttribute("initialized"), notNullValue());
}
 

@Test
public void testContextLoaderListenerWithGlobalContextInitializers() {
	MockServletContext sc = new MockServletContext("");
	sc.addInitParameter(ContextLoader.CONFIG_LOCATION_PARAM,
			"org/springframework/web/context/WEB-INF/ContextLoaderTests-acc-context.xml");
	sc.addInitParameter(ContextLoader.GLOBAL_INITIALIZER_CLASSES_PARAM, StringUtils.arrayToCommaDelimitedString(
			new Object[] {TestContextInitializer.class.getName(), TestWebContextInitializer.class.getName()}));
	ContextLoaderListener listener = new ContextLoaderListener();
	listener.contextInitialized(new ServletContextEvent(sc));
	WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(sc);
	TestBean testBean = wac.getBean(TestBean.class);
	assertThat(testBean.getName(), equalTo("testName"));
	assertThat(wac.getServletContext().getAttribute("initialized"), notNullValue());
}
 

@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");
}
 

private static ILeaderselectionService getLeaderService() {
if (leaderService == null) {
    WebApplicationContext wac = WebApplicationContextUtils
	    .getRequiredWebApplicationContext(SessionManager.getServletContext());
    leaderService = (ILeaderselectionService) wac.getBean("leaderselectionService");
}
return leaderService;
   }
 

private static IScratchieService getScratchieService() {
if (scratchieService == null) {
    WebApplicationContext wac = WebApplicationContextUtils
	    .getRequiredWebApplicationContext(SessionManager.getServletContext());
    scratchieService = (IScratchieService) wac.getBean(ScratchieConstants.SCRATCHIE_SERVICE);
}
return scratchieService;
   }
 

private UsernamePasswordAuthenticationToken authentication(ServletContext servletContext) {
	ApplicationContext context = WebApplicationContextUtils.getRequiredWebApplicationContext(servletContext);
	UserDetailsService  userDetailsService = userDetailsService(context);
	UserDetails userDetails = userDetailsService.loadUserByUsername(this.username);
	return new UsernamePasswordAuthenticationToken(
			userDetails, userDetails.getPassword(), userDetails.getAuthorities());
}
 

/**
 * Look up the SessionFactory that this filter should use.
 * <p>The default implementation looks for a bean with the specified name
 * in Spring's root application context.
 * @return the SessionFactory to use
 * @see #getSessionFactoryBeanName
 */
protected SessionFactory lookupSessionFactory() {
	if (logger.isDebugEnabled()) {
		logger.debug("Using SessionFactory '" + getSessionFactoryBeanName() + "' for OpenSessionInViewFilter");
	}
	WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());
	return wac.getBean(getSessionFactoryBeanName(), SessionFactory.class);
}
 

public static WebApplicationContext getSpringContextFromRequest( HttpServletRequest request) {
	return WebApplicationContextUtils.getRequiredWebApplicationContext(request.getSession().getServletContext());
}
 

protected IToolContentFullHandler getToolContentHandler(String toolContentHandlerName) {
WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());
return (IToolContentFullHandler) wac.getBean(toolContentHandlerName);
   }
 

protected <E> E getBeanFromContext(Class<E> clazz ) throws JspException {
    ServletContext currentServletContext = pageContext.getServletContext();
    ApplicationContext springContext = WebApplicationContextUtils.getRequiredWebApplicationContext(currentServletContext);
    return springContext.getBean(clazz);
}
 

/**
 * Convenience method to provide access to Spring beans accessible from the
 * web application context.
 *
 * @param <T> target cast
 * @param beanName name of the spring bean
 * @param clazz class of the spring bean
 * @return Spring bean with given name and class type
 *
 * @throws ClassCastException if the bean found cannot be cast to the given
 * class type
 */
public <T> T getSpringBean(String beanName, Class<T> clazz) {
    ServletContext servletContext = webappContext.getServletHandler().getServletContext();
    WebApplicationContext webApplicationContext = WebApplicationContextUtils.getRequiredWebApplicationContext(servletContext);
    return clazz.cast(webApplicationContext.getBean(beanName));
}