Spring 4.x Java code-based configuration: Static resource files and Dispatcher servlet

Question

Prior to servlet version 3.0, all configuration are xml based. I'm currently using code/annotation based configuration.

In xml style configuration, we have

<mvc:resources mapping="/res/**" location="/res/" />

How can I translate it into code based configuration? I keep receiving error from eclipse debug console that there is no dispatcher servlet found for resource file.

BTW, here is my reference, Migrating from Spring Security 3.x to 4.x (Java Configuration)

initializer

public class AppInitializer extends
        AbstractAnnotationConfigDispatcherServletInitializer {

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

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

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

mvc config

@EnableWebMvc
@ComponentScan({ "com.appname.controller" })
public class MvcConfig {
    @Bean
    public InternalResourceViewResolver viewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/jsp/");
        resolver.setSuffix(".jsp");
        return resolver;
    }
}

security config

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true, jsr250Enabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth)
            throws Exception {
        auth.inMemoryAuthentication().withUser("user").password("password")
                .roles("USER");
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
            .antMatchers("/res/**").permitAll()
            .and().authorizeRequests()
            .anyRequest().hasRole("USER")
            .and().formLogin().loginPage("/account/signin").permitAll()
            .and().logout().permitAll();
    }
}

security initializer

public class SecurityInitializer extends
        AbstractSecurityWebApplicationInitializer {

}

custom login

public class CustomUserDetailsService implements UserDetailsService {

    private AccountRepository accountRepository;

    public CustomUserDetailsService() {
        this.accountRepository = new AccountRepository();
    }

    @Override
    public UserDetails loadUserByUsername(String email)
            throws UsernameNotFoundException {

        Account account = accountRepository.getAccountByEmail(email);

        if (account == null) {
            throw new UsernameNotFoundException("Invalid email/password.");
        }

        Collection<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
        authorities.add(new SimpleGrantedAuthority("USER"));

        return new User(account.getEmail(), account.getPassword(), authorities);
    }
}

score 4 · Accepted Answer · edited Apr 08 '15 at 13:09

You can extend from WebMvcConfigurerAdapter and override the addResourceHandlers method

@EnableWebMvc
@ComponentScan({"com.appname.controller"})
public class MvcConfig extends WebMvcConfigurerAdapter {

    @Bean
    public InternalResourceViewResolver viewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/jsp/");
        resolver.setSuffix(".jsp");
        return resolver;
    }

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

Spring 4.x Java code-based configuration: Static resource files and Dispatcher servlet

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