Examples of org.springframework.web.servlet.resource.ResourceHttpRequestHandler

Package org.springframework.web.servlet.resource

Examples of org.springframework.web.servlet.resource.ResourceHttpRequestHandler

org.springframework.web.servlet.resource.ResourceHttpRequestHandler
{@link HttpRequestHandler} that serves static resources optimized for superior browser performance (according to the guidelines of Page Speed, YSlow, etc.) by allowing for flexible cache settings ( {@linkplain #setCacheSeconds "cacheSeconds" property}, last-modified support).
The {@linkplain #setLocations "locations" property} takes a list of Spring {@link Resource} locationsfrom which static resources are allowed to be served by this handler. For a given request, the list of locations will be consulted in order for the presence of the requested resource, and the first found match will be written to the response, with {@code Expires} and {@code Cache-Control}headers set as configured. The handler also properly evaluates the {@code Last-Modified} header(if present) so that a {@code 304} status code will be returned as appropriate, avoiding unnecessaryoverhead for resources that are already cached by the client. The use of {@code Resource} locationsallows resource requests to easily be mapped to locations other than the web application root. For example, resources could be served from a classpath location such as "classpath:/META-INF/public-web-resources/", allowing convenient packaging and serving of resources such as a JavaScript library from within jar files.
To ensure that users with a primed browser cache get the latest changes to application-specific resources upon deployment of new versions of the application, it is recommended that a version string is used in the URL mapping pattern that selects this handler. Such patterns can be easily parameterized using Spring EL. See the reference manual for further examples of this approach.
Rather than being directly configured as a bean, this handler will typically be configured through use of the {@code } XML configuration element. @author Keith Donald @author Jeremy Grelle @author Juergen Hoeller @since 3.0.4


  @Test
  public void resourceChainWithoutCaching() throws Exception {
    this.registration.resourceChain(false);


    ResourceHttpRequestHandler handler = getHandler("/resources/**");
    List<ResourceResolver> resolvers = handler.getResourceResolvers();
    assertThat(resolvers, Matchers.hasSize(1));
    assertThat(resolvers.get(0), Matchers.instanceOf(PathResourceResolver.class));


    List<ResourceTransformer> transformers = handler.getResourceTransformers();
    assertThat(transformers, Matchers.hasSize(0));
  }

View Full Code Here

        .addContentVersionStrategy("/**");


    this.registration.resourceChain(true).addResolver(versionResolver)
        .addTransformer(new AppCacheManifestTransformer());


    ResourceHttpRequestHandler handler = getHandler("/resources/**");
    List<ResourceResolver> resolvers = handler.getResourceResolvers();
    assertThat(resolvers.toString(), resolvers, Matchers.hasSize(3));
    assertThat(resolvers.get(0), Matchers.instanceOf(CachingResourceResolver.class));
    assertThat(resolvers.get(1), Matchers.sameInstance(versionResolver));
    assertThat(resolvers.get(2), Matchers.instanceOf(PathResourceResolver.class));


    List<ResourceTransformer> transformers = handler.getResourceTransformers();
    assertThat(transformers, Matchers.hasSize(3));
    assertThat(transformers.get(0), Matchers.instanceOf(CachingResourceTransformer.class));
    assertThat(transformers.get(1), Matchers.instanceOf(CssLinkResourceTransformer.class));
    assertThat(transformers.get(2), Matchers.instanceOf(AppCacheManifestTransformer.class));
  }

View Full Code Here

          .addResolver(pathResourceResolver)
          .addTransformer(cachingTransformer)
          .addTransformer(appCacheTransformer)
          .addTransformer(cssLinkTransformer);


    ResourceHttpRequestHandler handler = getHandler("/resources/**");
    List<ResourceResolver> resolvers = handler.getResourceResolvers();
    assertThat(resolvers.toString(), resolvers, Matchers.hasSize(3));
    assertThat(resolvers.get(0), Matchers.sameInstance(cachingResolver));
    assertThat(resolvers.get(1), Matchers.sameInstance(versionResolver));
    assertThat(resolvers.get(2), Matchers.sameInstance(pathResourceResolver));


    List<ResourceTransformer> transformers = handler.getResourceTransformers();
    assertThat(transformers, Matchers.hasSize(3));
    assertThat(transformers.get(0), Matchers.sameInstance(cachingTransformer));
    assertThat(transformers.get(1), Matchers.sameInstance(appCacheTransformer));
    assertThat(transformers.get(2), Matchers.sameInstance(cssLinkTransformer));
  }

View Full Code Here

    ResourceHttpRequestHandler appHandler;


    @Override
    public void init(ServletConfig config) throws ServletException {
        super.init(config);
        appHandler = new ResourceHttpRequestHandler();


        ServletContextResource composerRoot = new ServletContextResource(config.getServletContext(), "/composer/**");
        appHandler.setApplicationContext(getWebApplicationContext());
        appHandler.setLocations((List)Arrays.asList(composerRoot));

View Full Code Here

        this.resourceLoader = resourceLoader;
      }


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

View Full Code Here

      Field locationsField = ReflectionUtils.findField(
          ResourceHttpRequestHandler.class, "locations");
      locationsField.setAccessible(true);
      for (Map.Entry<String, Object> entry : ((SimpleUrlHandlerMapping) mapping)
          .getHandlerMap().entrySet()) {
        ResourceHttpRequestHandler handler = (ResourceHttpRequestHandler) entry
            .getValue();
        mappingLocations.put(entry.getKey(),
            (List<Resource>) locationsField.get(handler));
      }
    }

View Full Code Here

0 1

TOP

Related Classes of org.springframework.web.servlet.resource.ResourceHttpRequestHandler

com.boundlessgeo.geoserver.AppDispatcher

org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter$FaviconConfiguration

org.springframework.boot.autoconfigure.web.WebMvcAutoConfigurationTests

org.springframework.core.io.ClassPathResource

org.springframework.core.io.Resource

org.springframework.http.MediaType

org.springframework.web.context.request.ServletWebRequest

org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration

org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry

org.springframework.web.servlet.config.annotation.ResourceHandlerRegistryTests

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.