处理Web应用程序中的错误404 - 而不是REST应用程序

Question

I'm trying to handle 404 error using an @ControllerAdvice in a Spring MVC application totally configured using Javaconfig.

Spring MVC version is 4.1.5

I have read this:

• Stackoverflow Example 1
• Stackoverflow Example 1 continuation

But unfortunately it does not work for me.

Here you have my conf:

SpringConfigurationInitializer

public class SpringConfigurationInitializer extends
        AbstractAnnotationConfigDispatcherServletInitializer {



    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] { AppConfiguration.class };
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return null;
    }

    @Override
    protected String[] getServletMappings() {
        return new String[] { "/" };
    }

    @Override
    public void customizeRegistration(ServletRegistration.Dynamic registration) {
        registration.setInitParameter("throwExceptionIfNoHandlerFound", "true");
    }
}

Note that i'm using

registration.setInitParameter("throwExceptionIfNoHandlerFound", "true");

And

GlobalExceptionHandler (version 1)

@ControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(NoHandlerFoundException.class)
    public ModelAndView handleError404(HttpServletRequest request, Exception e) {
        System.out.println("handled!!!");
        ModelAndView mav = new ModelAndView("/errors/404");
        mav.addObject("exception", e);
        return mav;
    }
}

GlobalExceptionHandler (version 2)

@ControllerAdvice
public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {

    @Override
    public ResponseEntity handleNoHandlerFoundException(NoHandlerFoundException ex,
            HttpHeaders headers, HttpStatus status, WebRequest request) {
        System.out.println("handled¡¡¡");
        return null;
    }
}

Keep in mind that i'm not using any kind of xml config file and i'm trying to build a web application (not REST)

AppConfiguration

@Configuration
@ComponentScan({ "org.moyanojv.opendata.*" })
@Import({ MvcConfiguration.class, RepositoryConfiguration.class, SecurityConfig.class })
public class AppConfiguration extends WebMvcConfigurerAdapter{

}

MvcConfiguration

@EnableWebMvc
@Configuration
public class MvcConfiguration extends WebMvcConfigurerAdapter {

    @Bean
    public UrlBasedViewResolver viewResolver() {
        UrlBasedViewResolver viewResolver = new UrlBasedViewResolver();
        viewResolver.setViewClass(TilesView.class);
        return viewResolver;
    }

    @Bean
    public TilesConfigurer tilesConfigurer() {
        TilesConfigurer tilesConfigurer = new TilesConfigurer();
        tilesConfigurer.setDefinitions(new String[] { "/WEB-INF/tiles.xml" });
        tilesConfigurer.setCheckRefresh(true);
        return tilesConfigurer;
    }



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

    @Override
    public void configureDefaultServletHandling(
            DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }


    /* Localization section is started */

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(localeChangeInterceptor());
    }

    @Bean
    public LocaleChangeInterceptor localeChangeInterceptor(){
        LocaleChangeInterceptor localeChangeInterceptor=new LocaleChangeInterceptor();
        localeChangeInterceptor.setParamName("lang");
        return localeChangeInterceptor;
    }

    @Bean(name = "localeResolver")
    public LocaleResolver getLocaleResolver(){
        return new CookieLocaleResolver();
    }

    @Bean
    public ResourceBundleMessageSource messageSource() {
        ResourceBundleMessageSource source = new ResourceBundleMessageSource();
        source.setBasename("i18n/messages");
        source.setUseCodeAsDefaultMessage(true);
        return source;
    }
}

RepositoryConfiguration

@Configuration
public class RepositoryConfiguration {

}

SecurityConfig

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth)
            throws Exception {
        auth.inMemoryAuthentication().withUser("admin").password("admin").roles("ADMIN");
        auth.inMemoryAuthentication().withUser("user").password("user").roles("USER");
    }

    @Override
    public void configure( WebSecurity web ) throws Exception
    {
        // This is here to ensure that the static content (JavaScript, CSS, etc)
        // is accessible from the login page without authentication
        web
            .ignoring()
                .antMatchers( "/resources/**" );
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
        // access-denied-page: this is the page users will be
        // redirected to when they try to access protected areas.
        .exceptionHandling()
            .accessDeniedPage( "/403" )
            .and()
        // The intercept-url configuration is where we specify what roles are allowed access to what areas.
        // We specifically force the connection to https for all the pages, although it could be sufficient
        // just on the login page. The access parameter is where the expressions are used to control which
        // roles can access specific areas. One of the most important things is the order of the intercept-urls,
        // the most catch-all type patterns should at the bottom of the list as the matches are executed
        // in the order they are configured below. So /** (anyRequest()) should always be at the bottom of the list.
        .authorizeRequests()
            .antMatchers( "/admin" ).hasRole("ADMIN")
            .antMatchers("/login**").permitAll()
            .antMatchers("/home").permitAll()
            .antMatchers("/404").permitAll()
            .anyRequest().authenticated()
            .and()
        // This is where we configure our login form.
        // login-page: the page that contains the login screen
        // login-processing-url: this is the URL to which the login form should be submitted
        // default-target-url: the URL to which the user will be redirected if they login successfully
        // authentication-failure-url: the URL to which the user will be redirected if they fail login
        // username-parameter: the name of the request parameter which contains the username
        // password-parameter: the name of the request parameter which contains the password
        .formLogin()
            .loginPage( "/login" )
            .failureUrl( "/login?err=1" )
            .defaultSuccessUrl("/private")
            .usernameParameter( "username" )
            .passwordParameter( "password" )
            .permitAll()
            .and()
        // This is where the logout page and process is configured. The logout-url is the URL to send
        // the user to in order to logout, the logout-success-url is where they are taken if the logout
        // is successful, and the delete-cookies and invalidate-session make sure that we clean up after logout
        .logout()
            .logoutUrl("/logout")
            .logoutSuccessUrl("/login?logout=1")
            .invalidateHttpSession(true)
            //.deleteCookies("JSESSIONID,SPRING_SECURITY_REMEMBER_ME_COOKIE")
            .and()
        .csrf()
            .disable()
        // The session management is used to ensure the user only has one session. This isn't
        // compulsory but can add some extra security to your application.
        .sessionManagement()
            .maximumSessions(1);
    }

    @Override
    @Bean
    public UserDetailsService userDetailsServiceBean() throws Exception
    {
        return super.userDetailsServiceBean();
    }
}

SpringSecurityInitializer

public class SpringSecurityInitializer extends AbstractSecurityWebApplicationInitializer{
    //do nothing
}

With this config i'm not able to handle 404 error code.

Thanks in advance.

Updated to add more information about config files

Answer 1

Conclusion seems to be that setting throwExceptionIfNoHandlerFound to true does not throw an exception when no handler is found.

The solution is quite simple. From the javadoc @ DispatcherServlet.setThrowExceptionIfNoHandlerFound . It states here that a NoHandlerFoundException will never be thrown if DefaultServletHttpRequestHandler is used.

Solution hence is to remove the line

   configurer.enable();

from your MvcConfiguration. The exception should fire now and your GlobalExceptionHandler should do the rest!

Answer 2

Workaround: Add @RequestMapping("/**")

@Controller
@ControllerAdvice
public class GlobalExceptionHandler {

    private static final Logger logger = LoggerFactory.getLogger(GlobalExceptionHandler.class);

    @RequestMapping("/**")
    public String handlerNotMappingRequest(HttpServletRequest request, HttpServletResponse response, HttpHeaders httpHeaders)
            throws NoHandlerFoundException {
        throw new NoHandlerFoundException("No handler mapping found.", request.getRequestURL().toString(), httpHeaders);
    }

    @ExceptionHandler(Throwable.class)
    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    public ModelAndView handleControllerException(Throwable ex) {
        logger.error("ErrorLog: ", ex);
        return new ModelAndView("error/exception", "exceptionMsg", "ExceptionHandler msg: " + ex.toString());
    }

    @ExceptionHandler(NoHandlerFoundException.class)
    @ResponseStatus(HttpStatus.NOT_FOUND)
    public ModelAndView handleNoHandlerFoundException(NoHandlerFoundException ex) {
        logger.error("ErrorLog: ", ex);
        return new ModelAndView("error/exception", "exceptionMsg", "NoHandlerFoundException msg: " + ex.toString());
    }
}

Answer 3

The solution is to extend AbstractAnnotationConfigDispatcherServletInitializer and override this method:

@Override
protected DispatcherServlet createDispatcherServlet(WebApplicationContext servletAppContext) {
    final DispatcherServlet dispatcherServlet = (DispatcherServlet) super.createDispatcherServlet(servletAppContext);
    dispatcherServlet.setThrowExceptionIfNoHandlerFound(true);
    return dispatcherServlet;
}

OR this one:

@Override
public void customizeRegistration(ServletRegistration.Dynamic registration) {
    registration.setInitParameter("throwExceptionIfNoHandlerFound", "true");
}

And finally in your ControlerAdvice use this:

@ExceptionHandler(NoHandlerFoundException.class)
public String error404(Exception ex) {

    return new ModelAndView("404");
}