org.springframework.web.servlet.resource

Class WebJarsResourceResolver

java.lang.Object

org.springframework.web.servlet.resource.AbstractResourceResolver

org.springframework.web.servlet.resource.WebJarsResourceResolver

All Implemented Interfaces:

ResourceResolver

public class WebJarsResourceResolver
extends AbstractResourceResolver

A ResourceResolver that delegates to the chain to locate a resource and then attempts to find a matching versioned resource contained in a WebJar JAR file.

This allows WebJars.org users to write version agnostic paths in their templates, like <script src="/jquery/jquery.min.js"/>. This path will be resolved to the unique version <script src="/jquery/1.2.0/jquery.min.js"/>, which is a better fit for HTTP caching and version management in applications.

This also resolves Resources for version agnostic HTTP requests "GET /jquery/jquery.min.js".

This resolver requires the "org.webjars:webjars-locator" library on classpath, and is automatically registered if that library is present.

Since:

4.2

Author:

Brian Clozel

See Also:

ResourceChainRegistration, webjars.org

Field Summary

Fields inherited from class org.springframework.web.servlet.resource.AbstractResourceResolver

logger

Constructor Summary

Constructors

Constructor and Description
WebJarsResourceResolver()

Method Summary

Modifier and Type	Method and Description
protected String	findWebJarResourcePath(String path)
protected Resource	resolveResourceInternal(HttpServletRequest request, String requestPath, List<? extends Resource> locations, ResourceResolverChain chain)
protected String	resolveUrlPathInternal(String resourceUrlPath, List<? extends Resource> locations, ResourceResolverChain chain)

Methods inherited from class org.springframework.web.servlet.resource.AbstractResourceResolver

resolveResource, resolveUrlPath

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WebJarsResourceResolver

public WebJarsResourceResolver()

Method Detail

resolveResourceInternal

protected Resource resolveResourceInternal(HttpServletRequest request,
                                           String requestPath,
                                           List<? extends Resource> locations,
                                           ResourceResolverChain chain)

Specified by:

resolveResourceInternal in class AbstractResourceResolver

resolveUrlPathInternal

protected String resolveUrlPathInternal(String resourceUrlPath,
                                        List<? extends Resource> locations,
                                        ResourceResolverChain chain)

Specified by:

resolveUrlPathInternal in class AbstractResourceResolver

findWebJarResourcePath

protected String findWebJarResourcePath(String path)