SpringBoot下靜態目錄static無法訪問

SpringBoot項目下靜態資源無法訪問

在使用自定義mvc配置時，配置類繼承了WebMvcConfigurationSupport導致自動配置類失效，無法自動識別靜態資源目錄

通過查看 WebMvcAutoConfiguration源碼發現

自動配置類只在缺少WebMvcConfigurationSupport的時候生效

如果使用WebConfigurationSupport，則需要以下配置

	private static final String[] CLASSPATH_RESOURCE_LOCATIONS = {
            "classpath:/META-INF/resources/", "classpath:/resources/",
            "classpath:/static/", "classpath:/public/" };


    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        if (!registry.hasMappingForPattern("/webjars/**")) {
            registry.addResourceHandler("/webjars/**")
                    .addResourceLocations("classpath:/META-INF/resources/webjars/");
        }
        if (!registry.hasMappingForPattern("/**")) {
            registry.addResourceHandler("/**")
                    .addResourceLocations(CLASSPATH_RESOURCE_LOCATIONS);
        }
    }

當然還是推薦通過繼承WebMvcConfigurer的方式來擴展