spring boot关于首页的源码

        private Resource getIndexHtml(String location) {
            return this.getIndexHtml(this.resourceLoader.getResource(location));
        }

        private Resource getIndexHtml(Resource location) {
            try {
                Resource resource = location.createRelative("index.html");
                if (resource.exists() && resource.getURL() != null) {
                    return resource;
                }
            } catch (Exception var3) {
            }

            return null;
        }

private Resource getWelcomePage() {
/*其中private static final String[] CLASSPATH_RESOURCE_LOCATIONS = new String[]{
"classpath:/META-INF/resources/", "classpath:/resources/", "classpath:/static/", "classpath:/public/"};
this.staticLocations = CLASSPATH_RESOURCE_LOCATIONS;
*/
            String[] var1 = this.resourceProperties.getStaticLocations();
            int var2 = var1.length;
            for(int var3 = 0; var3 < var2; ++var3) {
                String location = var1[var3];
                Resource indexHtml = this.getIndexHtml(location);
                if (indexHtml != null) {
                    return indexHtml;
                }
            }

        @Bean
        public WelcomePageHandlerMapping welcomePageHandlerMapping(ApplicationContext applicationContext, FormattingConversionService mvcConversionService, ResourceUrlProvider mvcResourceUrlProvider) {
            WelcomePageHandlerMapping welcomePageHandlerMapping = new WelcomePageHandlerMapping(new TemplateAvailabilityProviders(applicationContext), applicationContext, this.getWelcomePage(), this.mvcProperties.getStaticPathPattern());
            welcomePageHandlerMapping.setInterceptors(this.getInterceptors(mvcConversionService, mvcResourceUrlProvider));
            welcomePageHandlerMapping.setCorsConfigurations(this.getCorsConfigurations());
            return welcomePageHandlerMapping;
        }