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ResourceHttpRequestHandler initializes PathExtensionContentNegotiationStrategy in afterPropertiesSet

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Issue: SPR-14851
This commit is contained in:
Juergen Hoeller
2016-10-28 15:13:37 +02:00
parent dbaafdd04e
commit b7d3a969a4
3 changed files with 17 additions and 20 deletions
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3
spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/ResourceHandlerRegistry.java
View File

@@ -145,9 +145,8 @@ public class ResourceHandlerRegistry {
handler.setContentNegotiationManager(this.contentNegotiationManager);
try {
handler.afterPropertiesSet();
handler.afterSingletonsInstantiated();
}
catch (Exception ex) {
catch (Throwable ex) {
throw new BeanInitializationException("Failed to init ResourceHttpRequestHandler", ex);
}
urlMap.put(pathPattern, handler);

28
spring-webmvc/src/main/java/org/springframework/web/servlet/resource/ResourceHttpRequestHandler.java
View File

@@ -31,7 +31,6 @@ import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.SmartInitializingSingleton;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.ResourceRegion;
import org.springframework.http.HttpHeaders;
@@ -91,7 +90,7 @@ import org.springframework.web.servlet.support.WebContentGenerator;
* @since 3.0.4
*/
public class ResourceHttpRequestHandler extends WebContentGenerator
implements HttpRequestHandler, InitializingBean, SmartInitializingSingleton, CorsConfigurationSource {
implements HttpRequestHandler, InitializingBean, CorsConfigurationSource {
// Servlet 3.1 setContentLengthLong(long) available?
private static final boolean contentLengthLongAvailable =
@@ -112,7 +111,7 @@ public class ResourceHttpRequestHandler extends WebContentGenerator
private ContentNegotiationManager contentNegotiationManager;
private PathExtensionContentNegotiationStrategy pathExtensionStrategy;
private PathExtensionContentNegotiationStrategy contentNegotiationStrategy;
private CorsConfiguration corsConfiguration;
@@ -253,16 +252,20 @@ public class ResourceHttpRequestHandler extends WebContentGenerator
logger.warn("Locations list is empty. No resources will be served unless a " +
"custom ResourceResolver is configured as an alternative to PathResourceResolver.");
}
if (this.resourceResolvers.isEmpty()) {
this.resourceResolvers.add(new PathResourceResolver());
}
initAllowedLocations();
if (this.resourceHttpMessageConverter == null) {
this.resourceHttpMessageConverter = new ResourceHttpMessageConverter();
}
if (this.resourceRegionHttpMessageConverter == null) {
this.resourceRegionHttpMessageConverter = new ResourceRegionHttpMessageConverter();
}
this.contentNegotiationStrategy = initContentNegotiationStrategy();
}
/**
@@ -285,11 +288,12 @@ public class ResourceHttpRequestHandler extends WebContentGenerator
}
}
@Override
public void afterSingletonsInstantiated() {
this.pathExtensionStrategy = initContentNegotiationStrategy();
}
/**
* Initialize the content negotiation strategy depending on the {@code ContentNegotiationManager}
* setup and the availability of a {@code ServletContext}.
* @see ServletPathExtensionContentNegotiationStrategy
* @see PathExtensionContentNegotiationStrategy
*/
protected PathExtensionContentNegotiationStrategy initContentNegotiationStrategy() {
Map<String, MediaType> mediaTypes = null;
if (getContentNegotiationManager() != null) {
@@ -299,9 +303,9 @@ public class ResourceHttpRequestHandler extends WebContentGenerator
mediaTypes = new HashMap<>(strategy.getMediaTypes());
}
}
return (getServletContext() != null) ?
new ServletPathExtensionContentNegotiationStrategy(getServletContext(), mediaTypes) :
new PathExtensionContentNegotiationStrategy(mediaTypes);
return (getServletContext() != null ?
new ServletPathExtensionContentNegotiationStrategy(getServletContext(), mediaTypes) :
new PathExtensionContentNegotiationStrategy(mediaTypes));
}
@@ -514,7 +518,7 @@ public class ResourceHttpRequestHandler extends WebContentGenerator
* @return the corresponding media type, or {@code null} if none found
*/
protected MediaType getMediaType(HttpServletRequest request, Resource resource) {
return this.pathExtensionStrategy.getMediaTypeForResource(resource);
return this.contentNegotiationStrategy.getMediaTypeForResource(resource);
}
/**