Developing Java Applications with Spring and Spring Boot

How to do it...

Despite what you might think, after seeing the previous recipe, adding an interceptor is not as straightforward as just declaring it as a bean. We actually need to do it via WebMvcConfigurer or by overriding WebMvcConfigurationSupport. Let's take a look at the following steps:

1. Let's enhance our WebConfiguration class to implement WebMvcConfigurer:

public class WebConfiguration implements WebMvcConfigurer {...} 

2. Now we will add a @Bean declaration for LocaleChangeInterceptor:

@Bean 
public LocaleChangeInterceptor localeChangeInterceptor() { 
  return new LocaleChangeInterceptor(); 
} 

3. This will actually create the interceptor Spring bean, but will not add it to the request handling chain. For this to happen, we will need to ...