对静态资源映射的映射类配置：

public void addResourceHandlers(ResourceHandlerRegistry registry) {    if (!this.resourceProperties.isAddMappings()) {        logger.debug("Default resource handling disabled");    } else {        Duration cachePeriod = this.resourceProperties.getCache().getPeriod();        CacheControl cacheControl = this.resourceProperties.getCache().getCachecontrol().toHttpCacheControl();        if (!registry.hasMappingForPattern("/webjars/**")) {            this.customizeResourceHandlerRegistration(registry.addResourceHandler(new String[]{
   "/webjars/**"}).    addResourceLocations(new String[]{
   "classpath:/META-INF/resources/webjars/"}).    setCachePeriod(this.getSeconds(cachePeriod)).setCacheControl(cacheControl));        }        String staticPathPattern = this.mvcProperties.getStaticPathPattern();        if (!registry.hasMappingForPattern(staticPathPattern)) {            this.customizeResourceHandlerRegistration(registry.addResourceHandler(new String[]{staticPathPattern}).addResourceLocations(getResourceLocations(this.resourceProperties.getStaticLocations())).setCachePeriod(this.getSeconds(cachePeriod)).setCacheControl(cacheControl));        }    }}

 

 

1）、 webjars

所有 /webjars/** ，都去 classpath:/META-INF/resources/webjars/ 找资源；

webjars：以jar包的方式引入静态资源；

 

网址：

 

访问网址进行一下测试：

可以成功访问

 

ResourceProperties.java

@ConfigurationProperties(prefix = "spring.resources", ignoreUnknownFields = false)public class ResourceProperties implements ResourceLoaderAware {  //可以设置和静态资源有关的参数，缓存时间等 ..... }

 

在访问的时候只需要写webjars下面资源的名称即可

具体的引入maven再官网可进行查询

     
         
      
       org.webjars
          
      
       jquery
          
      
       3.3.1
      
     

 

此时引入之后就可以使用！！！！

 

2）、存放静态资源的位置

"/**" 访问当前项目的任何资源，都去（

静态资源的文件夹）找映射

private static final String[] CLASSPATH_RESOURCE_LOCATIONS = new String[]{
   "classpath:/META-INF/resources/","classpath:/resources/","classpath:/static/","classpath:/public/"};"/"   当前项目根路径

 

在resources目录下的：

-resources

-static

-public

-/

 

测试访问hello.html网页

可以直接找到网页文件的位置 

 

 3)、配置欢迎页

 都在静态资源文件夹下....

@Configuration@ConditionalOnProperty(    value = {
   "spring.mvc.favicon.enabled"},    matchIfMissing = true)public static class FaviconConfiguration implements ResourceLoaderAware {    private final ResourceProperties resourceProperties;    private ResourceLoader resourceLoader;    public FaviconConfiguration(ResourceProperties resourceProperties) {        this.resourceProperties = resourceProperties;    }    public void setResourceLoader(ResourceLoader resourceLoader) {        this.resourceLoader = resourceLoader;    }    @Bean    public SimpleUrlHandlerMapping faviconHandlerMapping() {        SimpleUrlHandlerMapping mapping = new SimpleUrlHandlerMapping();        mapping.setOrder(-2147483647);        mapping.setUrlMap(Collections.singletonMap("**/favicon.ico", this.faviconRequestHandler()));        return mapping;    }    @Bean    public ResourceHttpRequestHandler faviconRequestHandler() {        ResourceHttpRequestHandler requestHandler = new ResourceHttpRequestHandler();        requestHandler.setLocations(this.resolveFaviconLocations());        return requestHandler;    }    private List
     
       resolveFaviconLocations() {        String[] staticLocations = WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter. 　　getResourceLocations(this.resourceProperties.getStaticLocations());        List
      
        locations = new ArrayList(staticLocations.length + 1);        Stream var10000 = Arrays.stream(staticLocations);        ResourceLoader var10001 = this.resourceLoader;        this.resourceLoader.getClass();        var10000.map(var10001::getResource).forEach(locations::add);        locations.add(new ClassPathResource("/"));        return Collections.unmodifiableList(locations);    }}
      
     

所有的 **/favicon.ico 都是在静态资源文件下找；

 与之前的进行对比

 

5）、配置文件的方式

spring.resources.static-locations=classpath:/hello,classpath:/qwe

实质是一个数组的形式，该配置之后静态文件不能访问

 

 此时原来静态文件的文件