java.lang.Object
- org.springframework.web.servlet.resource.AbstractResourceResolver

All Implemented Interfaces:
ResourceResolver
Direct Known Subclasses:
CachingResourceResolver, GzipResourceResolver, PathResourceResolver, VersionResourceResolver, WebJarsResourceResolver
```
public abstract class AbstractResourceResolver
extends Object
implements ResourceResolver
```
Base class for ResourceResolver implementations. Provides consistent logging.
Since:
4.1
Author:
Rossen Stoyanchev

Field Summary
Fields
Modifier and Type Field Description
protected Log logger

Constructor Summary
Constructors
Constructor Description
AbstractResourceResolver()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`Resource`	`resolveResource(HttpServletRequest request, String requestPath, List<? extends Resource> locations, ResourceResolverChain chain)`	Resolve the supplied request and request path to a `Resource` that exists under one of the given resource locations.
`protected abstract Resource`	`resolveResourceInternal(HttpServletRequest request, String requestPath, List<? extends Resource> locations, ResourceResolverChain chain)`
`String`	`resolveUrlPath(String resourceUrlPath, List<? extends Resource> locations, ResourceResolverChain chain)`	Resolve the externally facing public URL path for clients to use to access the resource that is located at the given internal resource path.
`protected abstract String`	`resolveUrlPathInternal(String resourceUrlPath, List<? extends Resource> locations, ResourceResolverChain chain)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- logger
```
protected final Log logger
```

Constructor Detail
- AbstractResourceResolver
```
public AbstractResourceResolver()
```

Method Detail

resolveResource
```
public Resource resolveResource(HttpServletRequest request,
                                String requestPath,
                                List<? extends Resource> locations,
                                ResourceResolverChain chain)
```
Description copied from interface: ResourceResolver
Resolve the supplied request and request path to a Resource that exists under one of the given resource locations.
Specified by:
resolveResource in interface ResourceResolver
Parameters:
request - the current request
requestPath - the portion of the request path to use
locations - the locations to search in when looking up resources
chain - the chain of remaining resolvers to delegate to
Returns:
the resolved resource or null if unresolved

resolveUrlPath
```
public String resolveUrlPath(String resourceUrlPath,
                             List<? extends Resource> locations,
                             ResourceResolverChain chain)
```
Description copied from interface: ResourceResolver
Resolve the externally facing public URL path for clients to use to access the resource that is located at the given internal resource path.
This is useful when rendering URL links to clients.
Specified by:
resolveUrlPath in interface ResourceResolver
Parameters:
resourceUrlPath - the internal resource path
locations - the locations to search in when looking up resources
chain - the chain of resolvers to delegate to
Returns:
the resolved public URL path or null if unresolved

resolveResourceInternal

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

resolveUrlPathInternal

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

Class AbstractResourceResolver

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

logger

Constructor Detail

AbstractResourceResolver

Method Detail

resolveResource

resolveUrlPath

resolveResourceInternal

resolveUrlPathInternal