I want to migrate Spring WebMvcConfigurerAdapter Configuration with Spring security. Now i get the problem that i get 2 ApplicationContextes and my Singelten Classes are Statefull. Here my web.xml and my FrontendConfig.
Please be indulgent with me. Im a newbie :)
<?xml version="1.0" encoding="UTF-8"?>
<web-app 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_3_0.xsd"
version="3.0">
<context-param>
<param-name>contextClass</param-name>
<param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
</context-param>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
de.wiegand.mytransport.frontend.config.FrontendConfig
</param-value>
</context-param>
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>
org.springframework.web.filter.DelegatingFilterProxy
</filter-class>
</filter>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextClass</param-name>
<param-value>
org.springframework.web.context.support.AnnotationConfigWebApplicationContext
</param-value>
</init-param>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>
de.wiegand.mytransport.frontend.config.FrontendConfig
</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<welcome-file-list>
<welcome-file>index.xhtml</welcome-file>
</welcome-file-list>
</web-app>
Configuration class
@Import({ StackEnvironment.class })
@EnableWebMvc
@ComponentScan({ "de.wiegand" })
@EnableTransactionManagement
@EnableAspectJAutoProxy
@Configuration
@ImportResource({ "/WEB-INF/spring-security.xml", "/WEB-INF/springsecurity.taglib.xml" })
public class FrontendConfig extends WebMvcConfigurerAdapter {
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
// 2DO: Wrong ??????
registry.addResourceHandler("/assets/**")
.addResourceLocations("classpath:/META-INF/resources/webjars/")
.setCachePeriod(31556926);
registry.addResourceHandler("/css/**").addResourceLocations("/css/")
.setCachePeriod(31556926);
registry.addResourceHandler("/img/**").addResourceLocations("/img/")
.setCachePeriod(31556926);
registry.addResourceHandler("/js/**").addResourceLocations("/js/")
.setCachePeriod(31556926);
}
@Override
public void configureDefaultServletHandling(
DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
@Bean
public InternalResourceViewResolver getInternalResourceViewResolver() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("/pages/"); //
resolver.setSuffix(".xhtml");
return resolver;
}
}
THX
You've declared the same @Configuration
class
de.wiegand.mytransport.frontend.config.FrontendConfig
in both the ContextLoaderListener
and the DispatcherServlet
.
Both of these create an ApplicationContext
. Since the DispatcherServlet
context (child) has access to the beans in the ContextLoaderListener
context (parent), you'll end up with duplicate beans or even initialization errors (depending on the config).
Your FrontendConfig
is a WebMvcConfigurerAdapter
and should therefore be the context that the DisaptcherServlet
loads.
If you have no other context (application-wide contxt), remove your ContextLoaderListener
declaration in the web.xml
.
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