@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(RESOURCE_LOCATIONS); } }