Spring-mvc + Spring-Security + Thymeleaf – Vorlage zur Fehlerbehebung ⇐ Java

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 Spring-mvc + Spring-Security + Thymeleaf – Vorlage zur Fehlerbehebung

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Ich folge einem einfachen Online-Tutorial zum Erstellen eines Spring + Spring Security + Thymeleaf + Maven-Projekts und erhalte die folgende Fehlermeldung:

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[ERROR] [tomcat-http--4 02:00:16] (TemplateEngine.java:process:1085) [THYMELEAF][tomcat-http--4] Exception processing template "login": Error resolving template "login", template might not exist or might not be accessible by any of the configured Template Resolvers
Feb 24, 2015 2:00:16 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/hub] threw exception [Request processing failed;  nested exception is org.thymeleaf.exceptions.TemplateInputException: Error resolving template "login", template might not exist or might not be accessible by any of the configured Template Resolvers] with root cause
org.thymeleaf.exceptions.TemplateInputException:  Error resolving template "login",  t e m p l a t e   m i g h t   n o t   e x i s t   o r   m i g h t   n o t   b e   a c c e s s i b l e   b y   a n y   o f   t h e   c o n f i g u r e d   T e m p l a t e   R e s o l v e r s < b r   / > a t   o r g . t h y m e l e a f . T e m p l a t e R e p o s i t o r y . g e t T e m p l a t e ( T e m p l a t e R e p o s i t o r y . j a v a : 2 4 6 ) < b r   / > a t   o r g . t h y m e l e a f . T e m p l a t e E n g i n e . p r o c e s s ( T e m p l a t e E n g i n e . j a v a : 1 1 0 4 ) < b r   / > a t   o r g . t h y m e l e a f . T e m p l a t e E n g i n e . p r o c e s s ( T e m p l a t e E n g i n e . j a v a : 1 0 6 0 ) < b r   / > a t   o r g . t h y m e l e a f . T e m p l a t e E n g i n e . p r o c e s s ( T e m p l a t e E n g i n e . j a v a : 1 0 1 1 ) < b r   / > a t   o r g . t h y m e l e a f . s p r i n g 4 . v i e w . T h y m e l e a f V i e w . r e n d e r F r a g m e n t ( T h y m e l e a f V i e w . j a v a : 3 3 5 ) < b r   / > a t   o r g . t h y m e l e a f . s p r i n g 4 . v i e w . T h y m e l e a f V i e w . r e n d e r ( T h y m e l e a f V i e w . j a v a : 1 9 0 ) < b r   / > a t   o r g . s p r i n g f r a m e w o r k . w e b . s e r v l e t . D i s p a t c h e r S e r v l e t . r e n d e r ( D i s p a t c h e r S e r v l e t . j a v a : 1 2 2 8 ) < b r   / > a t   o r g . s p r i n g f r a m e w o r k . w e b . s e r v l e t . D i s p a t c h e r S e r v l e t . p r o c e s s D i s p a t c h R e s u l t ( D i s p a t c h e r S e r v l e t . j a v a : 1 0 1 1 ) < b r   / > a t   o r g . s p r i n g f r a m e w o r k . w e b . s e r v l e t . D i s p a t c h e r S e r v l e t . d o D i s p a t c h ( D i s p a t c h e r S e r v l e t . j a v a : 9 5 5 ) < b r   / > a t   o r g . s p r i n g f r a m e w o r k . w e b . s e r v l e t . D i s p a t c h e r S e r v l e t . d o S e r v i c e ( D i s p a t c h e r S e r v l e t . j a v a : 8 7 7 ) < b r   / > a t   o r g . s p r i n g f r a m e w o r k . w e b . s e r v l e t . F r a m e w o r k S e r v l e t . p r o c e s s R e q u e s t ( F r a m e w o r k S e r v l e t . j a v a : 9 6 6 ) < b r   / > a t   o r g . s p r i n g f r a m e w o r k . w e b . s e r v l e t . F r a m e w o r k S e r v l e t . d o G e t ( F r a m e w o r k S e r v l e t . j a v a : 8 5 7 ) < b r   / > a t   j a v a x . s e r v l e t . h t t p . H t t p S e r v l e t . s e r v i c e ( H t t p S e r v l e t . j a v a : 6 1 8 ) < b r   / > a t   o r g . s p r i n g f r a m e w o r k . w e b . s e r v l e t . F r a m e w o r k S e r v l e t . s e r v i c e ( F r a m e w o r k S e r v l e t . j a v a : 8 4 2 ) < b r   / > a t   j a v a x . s e r v l e t . h t t p . H t t p S e r v l e t . s e r v i c e ( H t t p S e r v l e t . j a v a : 7 2 5 ) < b r   / > a t   o r g . a p a c h e . c a t a l i n a . c o r e . A p p l i c a t i o n F i l t e r C h a i n . i n t e r n a l D o F i l t e r ( A p p l i c a t i o n F i l t e r C h a i n . j a v a : 2 9 1 ) < b r   / > a t   o r g . a p a c h e . c a t a l i n a . c o r e . A p p l i c a t i o n F i l t e r C h a i n . d o F i l t e r ( A p p l i c a t i o n F i l t e r C h a i n . j a v a : 2 0 6 ) < b r   / > a t   o r g . a p a c h e . t o m c a t . w e b s o c k e t . s e r v e r . W s F i l t e r . d o F i l t e r ( W s F i l t e r . j a v a : 5 2 ) < b r   / > a t   o r g . a p a c h e . c a t a l i n a . c o r e . A p p l i c a t i o n F i l t e r C h a i n . i n t e r n a l D o F i l t e r ( A p p l i c a t i o n F i l t e r C h a i n . j a v a : 2 3 9 ) < b r   / > a t   o r g . a p a c h e . c a t a l i n a . c o r e . A p p l i c a t i o n F i l t e r C h a i n . d o F i l t e r ( A p p l i c a t i o n F i l t e r C h a i n . j a v a : 2 0 6 ) < b r   / > a t   o r g . s p r i n g f r a m e w o r k . s e c u r i t y . w e b . F i l t e r C h a i n P r o x y $ V i r t u a l F i l t e r C h a i n . d o F i l t e r ( F i l t e r C h a i n P r o x y . j a v a : 3 3 0 ) < b r   / > a t   o r g . s p r i n g f r a m e w o r k . s e c u r i t y . w e b . a c c e s s . i n t e r c e p t . F i l t e r S e c u r i t y I n t e r c e p t o r . i n v o k e ( F i l t e r S e c u r i t y I n t e r c e p t o r . j a v a : 1 1 8 ) < b r   / > a t   o r g . s p r i n g f r a m e w o r k . s e c u r i t y . w e b . a c c e s s . i n t e r c e p t . F i l t e r S e c u r i t y I n t e r c e p t o r . d o F i l t e r ( F i l t e r S e c u r i t y I n t e r c e p t o r . j a v a : 8 4 ) < b r   / > a t   o r g . s p r i n g f r a m e w o r k . s e c u r i t y . w e b . F i l t e r C h a i n P r o x y $ V i r t u a l F i l t e r C h a i n . d o F i l t e r ( F i l t e r C h a i n P r o x y . j a v a : 3 4 2 ) < b r   / > a t   o r g . s p r i n g f r a m e w ork.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:85)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:57)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:537)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1085)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:146)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:279)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Es sieht so aus, als ob die Anmeldeseite aus irgendeinem Grund nicht aufgelöst wird, obwohl sich die Anmeldeseite an der richtigen Stelle befindet. Wenn ich auf die Seite „users.html“ verweise, wird diese Seite geladen und es treten keine Fehler auf. Muss etwas ganz Einfaches sein, das ich übersehe. Kann mir bitte jemand helfen?

Das Folgende sind meine Konfigurationsklassen:

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public class ApplicationInitializer implements WebApplicationInitializer {

@Override
public void onStartup(ServletContext servletContext) throws ServletException {
//Load application context
AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
rootContext.register(ApplicationContext.class);
rootContext.setDisplayName("hub");

//Context loader listener
servletContext.addListener(new ContextLoaderListener(rootContext));

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

}
ApplicationContext-Klasse:

Code: Select all

@Configuration
@ComponentScan(basePackages = {"com.motodoc.hub.*"})
@EnableWebMvc
@Import({SpringDataConfig.class, ThymeleafConfig.class, SecurityConfig.class})
@ImportResource("classpath:trace-context.xml")
@PropertySource("classpath:spring.properties")
public class ApplicationContext extends WebMvcConfigurerAdapter {

// Maps resources path to webapp/resources
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
}

// Only needed if we are using @Value and ${...} when referencing properties
@Bean
public static PropertySourcesPlaceholderConfigurer properties() {
PropertySourcesPlaceholderConfigurer propertySources = new PropertySourcesPlaceholderConfigurer();
Resource[] resources = new ClassPathResource[] {
new ClassPathResource("spring.properties") };
propertySources.setLocations(resources);
propertySources.setIgnoreUnresolvablePlaceholders(true);
return propertySources;
}

// Provides internationalization of messages
@Bean
public ResourceBundleMessageSource messageSource() {
ResourceBundleMessageSource source = new ResourceBundleMessageSource();
source.setBasename("messages");
return source;
}
}
ThymeleafConfig-Klasse:

Code: Select all

@Configuration
public class ThymeleafConfig {

@Bean
public ServletContextTemplateResolver templateResolver() {
ServletContextTemplateResolver resolver = new ServletContextTemplateResolver();
resolver.setPrefix("/WEB-INF/views/");
resolver.setSuffix(".html");
resolver.setTemplateMode("HTML5");
resolver.setOrder(1);
return resolver;
}

@Bean
public SpringTemplateEngine templateEngine() {
SpringTemplateEngine engine = new SpringTemplateEngine();
engine.setTemplateResolver(templateResolver());
return engine;
}

@Bean
public ThymeleafViewResolver thymeleafViewResolver() {
ThymeleafViewResolver resolver = new ThymeleafViewResolver();
resolver.setTemplateEngine(templateEngine());
return resolver;
}
}
SpringSecurityConfig-Klasse:

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@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth.inMemoryAuthentication().withUser("mkyong").password("123456").roles("USER");
auth.inMemoryAuthentication().withUser("admin").password("123456").roles("ADMIN");
auth.inMemoryAuthentication().withUser("dba").password("123456").roles("DBA");
}

@Override
public void configure(WebSecurity web) throws Exception {
web.ignoring().antMatchers("/resources/**");
}

@Override
protected void configure( HttpSecurity http ) throws Exception
{
http
.authorizeRequests()
.antMatchers("/**").authenticated()
.antMatchers("/resources/**").permitAll()
.anyRequest().authenticated()
.and()
.formLogin()
.loginPage("/login")
.permitAll()
.defaultSuccessUrl("/users")
//.failureUrl("/login.html?authfailed=true")
.and()
.logout()
.invalidateHttpSession(true)
.logoutUrl("/logout")
.deleteCookies("JSESSIONID")
.logoutSuccessUrl("/");
}
}
SecurityInit-Klasse:

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public class SecurityInit extends AbstractSecurityWebApplicationInitializer {

}
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