Question

我在一个Spring Boot应用程序的Controller方法中使用了这个注释。

@RequestMapping(value="/{x}/{y}/{filename:.*}", method = RequestMethod.GET)

一切正常，最后一个参数可以是任何文件名。

问题在于url，其中文件名以“.ico”结尾... Spring没有向此方法发送请求...我的猜测是它认为是一个favicon本身。

我怎样才能避免这种冲突？

感谢。

Answer 1

查看Spring MVC @PathVariable with dot (.) is getting truncated，特别是有关Spring 4.x

的最新答案之一

Answer 2

我找到了解决方案。我只需要在application.properties文件中禁用此设置

spring.mvc.favicon.enabled=false

这样来自WebMvcAutoConfiguration的FaviconConfiguration bean不满足约束，因此不会创建：

@Configuration
@ConditionalOnProperty(value = "spring.mvc.favicon.enabled", matchIfMissing = true)
public static class FaviconConfiguration implements ResourceLoaderAware {

    private ResourceLoader resourceLoader;

    @Bean
    public SimpleUrlHandlerMapping faviconHandlerMapping() {
        SimpleUrlHandlerMapping mapping = new SimpleUrlHandlerMapping();
        mapping.setOrder(Integer.MIN_VALUE + 1);
        /**THIS WAS THE CONFLICTIVE MAPPING IN MY CASE**/
        mapping.setUrlMap(Collections.singletonMap("**/favicon.ico", faviconRequestHandler()));
        return mapping;
    }

    @Override
    public void setResourceLoader(ResourceLoader resourceLoader) {
        this.resourceLoader = resourceLoader;
    }

    @Bean
    public ResourceHttpRequestHandler faviconRequestHandler() {
        ResourceHttpRequestHandler requestHandler = new ResourceHttpRequestHandler();
        requestHandler.setLocations(getLocations());
        return requestHandler;
    }

    private List<Resource> getLocations() {
        List<Resource> locations = new ArrayList<Resource>(CLASSPATH_RESOURCE_LOCATIONS.length + 1);
        for (String location : CLASSPATH_RESOURCE_LOCATIONS) {
            locations.add(this.resourceLoader.getResource(location));
        }
        locations.add(new ClassPathResource("/"));
        return Collections.unmodifiableList(locations);
    }
}

来源：https://github.com/spring-projects/spring-boot/blob/master/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration.java

在Spring Boot中未检测到以.ico结尾的URL

2 个答案: