spring 易混淆知识汇总 - 三者区别：@EnableWebMvc WebMvcConfigurationSupport WebMvcConfigurerAdapter

三者区别：@EnableWebMvc WebMvcConfigurationSupport WebMvcConfigurerAdapter

结论： @EnableWebMvc 就是 WebMvcConfigurationSupport，但是 如果想个性化重写某些方法，请  继承 WebMvcConfigurerAdapter 重写即可。如果还是满足不了，请删除 @EnableWebMvc 后 继承 WebMvcConfigurationSupport 重写方法。

@EnableWebMvc annotation is used there's no need to extend directly WebMvcConfigurationSupport, and you should just extend WebMvcConfigurerAdapter

官网给出的解释 
If the customization options of WebMvcConfigurer  do not expose something you need to configure, consider removing the @EnableWebMvc annotation and extending directly from WebMvcConfigurationSupport overriding selected @Bean  methods: @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 RequestMapingHandlerAdapter } }