EnableWebMvc vs WebMvcConfigurationSupport
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spring doc解釋spring
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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 classapp
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@EnableWebMvcide
- 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註解會覆蓋自定義的WebMvcConfigurationSupport配置
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兩者的共同點spa
- 都是爲了配置MVC
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兩者的區別繼承
- @EnableWebMvc註解的實現是基於WebMvcConfigurationSupport，詳見@EnableWebMvc的doc
- 三種應用形式只能選其一，若是自定義的WebMvcConfigurationSupport與@EnableWebMvc共同存在，則自定義的WebMvcConfigurationSupport配置會被覆蓋
- 自定義(高級模式): 繼承WebMvcConfigurationSupport
- 自定義(極簡模式): @EnableWebMvc註解+實現WebMvcConfigurer接口
- 默認模式: 使用@EnableWebMvc註解