EnableWebMvc vs WebMvcConfigurationSupport
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spring doc解释
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WebMvcConfigurationSupport: This is the main class providing the configuration behind the MVC Java config. It is typically imported by adding @EnableWebMvc to an application @Configuration class
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@EnableWebMvc
- To customize the imported configuration, implement the interface WebMvcConfigurer and override individual methods
- If WebMvcConfigurer does not expose some more advanced setting that needs to be configured consider removing the @EnableWebMvc annotation and extending directly from WebMvcConfigurationSupport or DelegatingWebMvcConfiguration
- // 使用@EnableWebMvc注解会覆盖自定义的WebMvcConfigurationSupport配置
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二者的共同点
- 都是为了配置MVC
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二者的区别
- @EnableWebMvc注解的实现是基于WebMvcConfigurationSupport，详见@EnableWebMvc的doc
- 三种应用形式只能选其一，如果自定义的WebMvcConfigurationSupport与@EnableWebMvc共同存在，则自定义的WebMvcConfigurationSupport配置会被覆盖
- 自定义(高级模式): 继承WebMvcConfigurationSupport
- 自定义(极简模式): @EnableWebMvc注解+实现WebMvcConfigurer接口
- 默认模式: 使用@EnableWebMvc注解
