@Retention(value=RUNTIME) @Target(value=TYPE) @Documented @Import(value=DelegatingWebMvcConfiguration.class) public @interface EnableWebMvc
@Configuration class imports the Spring MVC
configuration from WebMvcConfigurationSupport, e.g.:
@Configuration
@EnableWebMvc
@ComponentScan(basePackageClasses = { MyConfiguration.class })
public class MyWebConfiguration {
}
To customize the imported configuration, implement the interface
WebMvcConfigurer or more likely extend the empty method base class
WebMvcConfigurerAdapter and override individual methods, e.g.:
@Configuration
@EnableWebMvc
@ComponentScan(basePackageClasses = { MyConfiguration.class })
public class MyConfiguration extends WebMvcConfigurerAdapter {
@Override
public void addFormatters(FormatterRegistry formatterRegistry) {
formatterRegistry.addConverter(new MyConverter());
}
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
converters.add(new MyHttpMessageConverter());
}
// More overridden methods ...
}
If WebMvcConfigurer does not expose some advanced setting that
needs to be configured, consider removing the @EnableWebMvc
annotation and extending directly from WebMvcConfigurationSupport
or DelegatingWebMvcConfiguration, e.g.:
@Configuration
@ComponentScan(basePackageClasses = { MyConfiguration.class })
public class MyConfiguration extends WebMvcConfigurationSupport {
@Override
public void addFormatters(FormatterRegistry formatterRegistry) {
formatterRegistry.addConverter(new MyConverter());
}
@Bean
public RequestMappingHandlerAdapter requestMappingHandlerAdapter() {
// Create or delegate to "super" to create and
// customize properties of RequestMappingHandlerAdapter
}
}
WebMvcConfigurer,
WebMvcConfigurerAdapter,
WebMvcConfigurationSupport,
DelegatingWebMvcConfiguration