Spring Framework 6.1.4 · org.springframework.web.servlet.support.WebContentGenerator

Modifier and Type	Field and Description
private String	allowHeader
private boolean	alwaysMustRevalidate
private CacheControl	cacheControl
private int	cacheSeconds
protected static final String	HEADER_CACHE_CONTROL
private static final String	HEADER_EXPIRES
private static final String	HEADER_PRAGMA
public static final String	METHOD_GET HTTP method "GET".
public static final String	METHOD_HEAD HTTP method "HEAD".
public static final String	METHOD_POST HTTP method "POST".
private boolean	requireSession
private Set<String>	supportedMethods Set of supported HTTP methods.
private boolean	useCacheControlHeader Use HTTP 1.1 cache-control header?
private boolean	useCacheControlNoStore Use HTTP 1.1 cache-control header value "no-store"?
private boolean	useExpiresHeader Use HTTP 1.0 expires header?
private String[]	varyByRequestHeaders

Access	Constructor and Description
public	WebContentGenerator() Create a new WebContentGenerator which supports HTTP methods GET, HEAD and POST by default.
public	WebContentGenerator(boolean `true` if this generator should support HTTP methods GET, HEAD and POST by default, or `false` if it should be unrestricted restrictDefaultSupportedMethods) Create a new WebContentGenerator.
public	WebContentGenerator(String... the supported HTTP methods for this content generator supportedMethods) Create a new WebContentGenerator.

Method Summary

Modifier and Type	Method and Description
protected final void	applyCacheControl(HttpServletResponse current HTTP response response, CacheControl the pre-configured cache control settings cacheControl) Set the HTTP Cache-Control header according to the given settings.
protected final void	applyCacheSeconds(HttpServletResponse current HTTP response response, int positive number of seconds into the future that the response should be cacheable for, 0 to prevent caching cacheSeconds) Apply the given cache seconds and generate corresponding HTTP headers, i.e. allow caching for the given number of seconds in case of a positive value, prevent caching if given a 0 value, do nothing else.
protected final void	applyCacheSeconds(HttpServletResponse the current HTTP response response, int the (positive) number of seconds into the future that the response should be cacheable for; 0 to prevent caching; and a negative value to leave caching to the client. cacheSeconds, boolean whether the client should revalidate the resource (typically only necessary for controllers with last-modified support) mustRevalidate) Deprecated as of 4.2, in favor of `applyCacheControl` Apply the given cache seconds and generate respective HTTP headers.
protected final void	cacheForSeconds(HttpServletResponse current HTTP response response, int number of seconds into the future that the response should be cacheable for seconds) Deprecated as of 4.2, in favor of `applyCacheControl` Set HTTP headers to allow caching for the given number of seconds.
protected final void	cacheForSeconds(HttpServletResponse the current HTTP response response, int number of seconds into the future that the response should be cacheable for seconds, boolean whether the client should revalidate the resource (typically only necessary for controllers with last-modified support) mustRevalidate) Deprecated as of 4.2, in favor of `applyCacheControl` Set HTTP headers to allow caching for the given number of seconds.
protected final void	checkAndPrepare(HttpServletRequest request, HttpServletResponse response, int cacheSeconds, boolean lastModified) Deprecated as of 4.2, since the `lastModified` flag is effectively ignored, with a must-revalidate header only generated if explicitly configured Check and prepare the given request and response according to the settings of this generator.
protected final void	checkRequest(HttpServletRequest current HTTP request request) Check the given request for supported methods and a required session, if any.
protected String	getAllowHeader() Return the "Allow" header value to use in response to an HTTP OPTIONS request based on the configured `supported methods` also automatically adding "OPTIONS" to the list even if not present as a supported method.
public final CacheControl	getCacheControl() Get the `org.springframework.http.CacheControl` instance that builds the Cache-Control HTTP response header.
public final int	getCacheSeconds() Return the number of seconds that content is cached.
public final String[]	getSupportedMethods() Return the HTTP methods that this content generator supports.
public final String[]	getVaryByRequestHeaders() Return the configured request header names for the "Vary" response header.
private Collection<String>	getVaryRequestHeadersToAdd(HttpServletResponse response, String[] varyByRequestHeaders)
private void	initAllowHeader()
public final boolean	isAlwaysMustRevalidate() Deprecated as of 4.2, in favor of `getCacheControl()` Return whether 'must-revalidate' is added to every Cache-Control header.
public final boolean	isRequireSession() Return whether a session is required to handle requests.
public final boolean	isUseCacheControlHeader() Deprecated as of 4.2, in favor of `getCacheControl()` Return whether the HTTP 1.1 cache-control header is used.
public final boolean	isUseCacheControlNoStore() Deprecated as of 4.2, in favor of `getCacheControl()` Return whether the HTTP 1.1 cache-control header value "no-store" is used.
public final boolean	isUseExpiresHeader() Deprecated as of 4.2, in favor of `getCacheControl()` Return whether the HTTP 1.0 expires header is used.
protected final void	prepareResponse(HttpServletResponse current HTTP response response) Prepare the given response according to the settings of this generator.
protected final void	preventCaching(HttpServletResponse response) Deprecated as of 4.2, in favor of `applyCacheControl` Prevent the response from being cached.
public final void	setAlwaysMustRevalidate(boolean mustRevalidate) Deprecated as of 4.2, in favor of `setCacheControl` An option to add 'must-revalidate' to every Cache-Control header.
public final void	setCacheControl(CacheControl cacheControl) Set the `org.springframework.http.CacheControl` instance to build the Cache-Control HTTP response header.
public final void	setCacheSeconds(int seconds) Cache content for the given number of seconds, by writing cache-related HTTP headers to the response: seconds == -1 (default value): no generation cache-related headers seconds == 0: "Cache-Control: no-store" will prevent caching seconds > 0: "Cache-Control: max-age=seconds" will ask to cache content
public final void	setRequireSession(boolean requireSession) Set whether a session should be required to handle requests.
public final void	setSupportedMethods(String... methods) Set the HTTP methods that this content generator should support.
public final void	setUseCacheControlHeader(boolean useCacheControlHeader) Deprecated as of 4.2, since going forward, the HTTP 1.1 cache-control header will be required, with the HTTP 1.0 headers disappearing Set whether to use the HTTP 1.1 cache-control header.
public final void	setUseCacheControlNoStore(boolean useCacheControlNoStore) Deprecated as of 4.2, in favor of `setCacheControl` Set whether to use the HTTP 1.1 cache-control header value "no-store" when preventing caching.
public final void	setUseExpiresHeader(boolean useExpiresHeader) Deprecated as of 4.2, since going forward, the HTTP 1.1 cache-control header will be required, with the HTTP 1.0 headers disappearing Set whether to use the HTTP 1.0 expires header.
public final void	setVaryByRequestHeaders(String... one or more request header names varyByRequestHeaders) Configure one or more request header names (e.g. "Accept-Language") to add to the "Vary" response header to inform clients that the response is subject to content negotiation and variances based on the value of the given request headers.

Inherited from org.springframework.web.context.support.WebApplicationObjectSupport:: getServletContext getTempDir getWebApplicationContext initApplicationContext initServletContext isContextRequired setServletContext

allowHeader	back to summary
private String allowHeader Annotations @Nullable

alwaysMustRevalidate	back to summary
private boolean alwaysMustRevalidate

cacheControl	back to summary
private CacheControl cacheControl Annotations @Nullable

cacheSeconds	back to summary
private int cacheSeconds

HEADER_CACHE_CONTROL	back to summary
protected static final String HEADER_CACHE_CONTROL

HEADER_EXPIRES	back to summary
private static final String HEADER_EXPIRES

HEADER_PRAGMA	back to summary
private static final String HEADER_PRAGMA

METHOD_GET	back to summary
public static final String METHOD_GET HTTP method "GET".

METHOD_HEAD	back to summary
public static final String METHOD_HEAD HTTP method "HEAD".

METHOD_POST	back to summary
public static final String METHOD_POST HTTP method "POST".

requireSession	back to summary
private boolean requireSession

supportedMethods	back to summary
private Set<String> supportedMethods Set of supported HTTP methods. Annotations @Nullable

useCacheControlHeader	back to summary
private boolean useCacheControlHeader Use HTTP 1.1 cache-control header?

useCacheControlNoStore	back to summary
private boolean useCacheControlNoStore Use HTTP 1.1 cache-control header value "no-store"?

useExpiresHeader	back to summary
private boolean useExpiresHeader Use HTTP 1.0 expires header?

varyByRequestHeaders	back to summary
private String[] varyByRequestHeaders Annotations @Nullable

WebContentGenerator	back to summary
public WebContentGenerator() Create a new WebContentGenerator which supports HTTP methods GET, HEAD and POST by default.

WebContentGenerator	back to summary
public WebContentGenerator(boolean restrictDefaultSupportedMethods) Create a new WebContentGenerator. Parameters restrictDefaultSupportedMethods:boolean `true` if this generator should support HTTP methods GET, HEAD and POST by default, or `false` if it should be unrestricted

WebContentGenerator	back to summary
public WebContentGenerator(String... supportedMethods) Create a new WebContentGenerator. Parameters supportedMethods:String[] the supported HTTP methods for this content generator

Method Detail

applyCacheControl	back to summary
protected final void applyCacheControl(HttpServletResponse response, CacheControl cacheControl) Set the HTTP Cache-Control header according to the given settings. Parameters response:HttpServletResponse current HTTP response cacheControl:CacheControl the pre-configured cache control settings Since 4.2

applyCacheControl

back to summary

protected final void applyCacheControl(HttpServletResponse response, CacheControl cacheControl)

Set the HTTP Cache-Control header according to the given settings.

Parameters

response:HttpServletResponse: current HTTP response
cacheControl:CacheControl: the pre-configured cache control settings

Since

4.2

applyCacheSeconds	back to summary
protected final void applyCacheSeconds(HttpServletResponse response, int cacheSeconds) Apply the given cache seconds and generate corresponding HTTP headers, i.e. allow caching for the given number of seconds in case of a positive value, prevent caching if given a 0 value, do nothing else. Does not tell the browser to revalidate the resource. Parameters response:HttpServletResponse current HTTP response cacheSeconds:int positive number of seconds into the future that the response should be cacheable for, 0 to prevent caching Annotations @SuppressWarnings:deprecation

applyCacheSeconds

back to summary

protected final void applyCacheSeconds(HttpServletResponse response, int cacheSeconds)

Apply the given cache seconds and generate corresponding HTTP headers, i.e. allow caching for the given number of seconds in case of a positive value, prevent caching if given a 0 value, do nothing else. Does not tell the browser to revalidate the resource.

Parameters

response:HttpServletResponse: current HTTP response
cacheSeconds:int: positive number of seconds into the future that the response should be cacheable for, 0 to prevent caching

Annotations

@SuppressWarnings:deprecation

applyCacheSeconds back to summary

applyCacheSeconds	back to summary
protected final void applyCacheSeconds(HttpServletResponse response, int cacheSeconds, boolean mustRevalidate) Deprecated as of 4.2, in favor of `applyCacheControl` Apply the given cache seconds and generate respective HTTP headers. That is, allow caching for the given number of seconds in the case of a positive value, prevent caching if given a 0 value, else do nothing (i.e. leave caching to the client). Parameters response:HttpServletResponse the current HTTP response cacheSeconds:int the (positive) number of seconds into the future that the response should be cacheable for; 0 to prevent caching; and a negative value to leave caching to the client. mustRevalidate:boolean whether the client should revalidate the resource (typically only necessary for controllers with last-modified support) Annotations @Deprecated

protected final void applyCacheSeconds(HttpServletResponse response, int cacheSeconds, boolean mustRevalidate)

Deprecated

as of 4.2, in favor of applyCacheControl

Apply the given cache seconds and generate respective HTTP headers.

That is, allow caching for the given number of seconds in the case of a positive value, prevent caching if given a 0 value, else do nothing (i.e. leave caching to the client).

Parameters

response:HttpServletResponse: the current HTTP response
cacheSeconds:int: the (positive) number of seconds into the future that the response should be cacheable for; 0 to prevent caching; and a negative value to leave caching to the client.
mustRevalidate:boolean: whether the client should revalidate the resource (typically only necessary for controllers with last-modified support)

Annotations

@Deprecated

cacheForSeconds back to summary

cacheForSeconds	back to summary
protected final void cacheForSeconds(HttpServletResponse response, int seconds) Deprecated as of 4.2, in favor of `applyCacheControl` Set HTTP headers to allow caching for the given number of seconds. Does not tell the browser to revalidate the resource. Parameters response:HttpServletResponse current HTTP response seconds:int number of seconds into the future that the response should be cacheable for Annotations @Deprecated

protected final void cacheForSeconds(HttpServletResponse response, int seconds)

Deprecated

as of 4.2, in favor of applyCacheControl

Set HTTP headers to allow caching for the given number of seconds. Does not tell the browser to revalidate the resource.

Parameters

response:HttpServletResponse: current HTTP response
seconds:int: number of seconds into the future that the response should be cacheable for

Annotations

@Deprecated

cacheForSeconds back to summary

cacheForSeconds	back to summary
protected final void cacheForSeconds(HttpServletResponse response, int seconds, boolean mustRevalidate) Deprecated as of 4.2, in favor of `applyCacheControl` Set HTTP headers to allow caching for the given number of seconds. Tells the browser to revalidate the resource if mustRevalidate is `true`. Parameters response:HttpServletResponse the current HTTP response seconds:int number of seconds into the future that the response should be cacheable for mustRevalidate:boolean whether the client should revalidate the resource (typically only necessary for controllers with last-modified support) Annotations @Deprecated

protected final void cacheForSeconds(HttpServletResponse response, int seconds, boolean mustRevalidate)

Deprecated

as of 4.2, in favor of applyCacheControl

Set HTTP headers to allow caching for the given number of seconds. Tells the browser to revalidate the resource if mustRevalidate is true.

Parameters

response:HttpServletResponse: the current HTTP response
seconds:int: number of seconds into the future that the response should be cacheable for
mustRevalidate:boolean: whether the client should revalidate the resource (typically only necessary for controllers with last-modified support)

Annotations

@Deprecated

checkAndPrepare back to summary

checkAndPrepare	back to summary
protected final void checkAndPrepare(HttpServletRequest request, HttpServletResponse response, int cacheSeconds, boolean lastModified) throws ServletException Deprecated as of 4.2, since the `lastModified` flag is effectively ignored, with a must-revalidate header only generated if explicitly configured Check and prepare the given request and response according to the settings of this generator. Annotations @Deprecated See Also `checkRequest(HttpServletRequest)`, `applyCacheSeconds(HttpServletResponse, int)`

protected final void checkAndPrepare(HttpServletRequest request, HttpServletResponse response, int cacheSeconds, boolean lastModified) throws ServletException

Deprecated

as of 4.2, since the lastModified flag is effectively ignored, with a must-revalidate header only generated if explicitly configured

Check and prepare the given request and response according to the settings of this generator.

Annotations

@Deprecated

checkRequest	back to summary
protected final void checkRequest(HttpServletRequest request) throws ServletException Check the given request for supported methods and a required session, if any. Parameters request:HttpServletRequest current HTTP request Exceptions ServletException: if the request cannot be handled because a check failed Since 4.2

checkRequest

back to summary

protected final void checkRequest(HttpServletRequest request) throws ServletException

Check the given request for supported methods and a required session, if any.

Parameters

request:HttpServletRequest: current HTTP request

Exceptions

ServletException:: if the request cannot be handled because a check failed

Since

4.2

getAllowHeader back to summary

getAllowHeader	back to summary
protected String getAllowHeader() Return the "Allow" header value to use in response to an HTTP OPTIONS request based on the configured `supported methods` also automatically adding "OPTIONS" to the list even if not present as a supported method. This means subclasses don't have to explicitly list "OPTIONS" as a supported method as long as HTTP OPTIONS requests are handled before making a call to `checkRequest(HttpServletRequest)`. Annotations @Nullable Since 4.3

protected String getAllowHeader()

Return the "Allow" header value to use in response to an HTTP OPTIONS request based on the configured supported methods also automatically adding "OPTIONS" to the list even if not present as a supported method. This means subclasses don't have to explicitly list "OPTIONS" as a supported method as long as HTTP OPTIONS requests are handled before making a call to checkRequest(HttpServletRequest).

Annotations

@Nullable

Since

4.3

getCacheControl back to summary

getCacheControl	back to summary
public final CacheControl getCacheControl() Get the `org.springframework.http.CacheControl` instance that builds the Cache-Control HTTP response header. Annotations @Nullable Since 4.2

public final CacheControl getCacheControl()

Get the org.springframework.http.CacheControl instance that builds the Cache-Control HTTP response header.

Annotations

@Nullable

Since

4.2

getCacheSeconds	back to summary
public final int getCacheSeconds() Return the number of seconds that content is cached.

getSupportedMethods	back to summary
public final String[] getSupportedMethods() Return the HTTP methods that this content generator supports. Annotations @Nullable

getSupportedMethods

back to summary

public final String[] getSupportedMethods()

Return the HTTP methods that this content generator supports.

Annotations

@Nullable

getVaryByRequestHeaders	back to summary
public final String[] getVaryByRequestHeaders() Return the configured request header names for the "Vary" response header. Annotations @Nullable Since 4.3

getVaryByRequestHeaders

back to summary

public final String[] getVaryByRequestHeaders()

Return the configured request header names for the "Vary" response header.

Annotations

@Nullable

Since

4.3

getVaryRequestHeadersToAdd	back to summary
private Collection<String> getVaryRequestHeadersToAdd(HttpServletResponse response, String[] varyByRequestHeaders)

initAllowHeader	back to summary
private void initAllowHeader()

isAlwaysMustRevalidate back to summary

isAlwaysMustRevalidate	back to summary
public final boolean isAlwaysMustRevalidate() Deprecated as of 4.2, in favor of `getCacheControl()` Return whether 'must-revalidate' is added to every Cache-Control header. Annotations @Deprecated

public final boolean isAlwaysMustRevalidate()

Deprecated

as of 4.2, in favor of getCacheControl()

Return whether 'must-revalidate' is added to every Cache-Control header.

Annotations

@Deprecated

isRequireSession	back to summary
public final boolean isRequireSession() Return whether a session is required to handle requests.

isUseCacheControlHeader back to summary

isUseCacheControlHeader	back to summary
public final boolean isUseCacheControlHeader() Deprecated as of 4.2, in favor of `getCacheControl()` Return whether the HTTP 1.1 cache-control header is used. Annotations @Deprecated

public final boolean isUseCacheControlHeader()

Deprecated

as of 4.2, in favor of getCacheControl()

Return whether the HTTP 1.1 cache-control header is used.

Annotations

@Deprecated

isUseCacheControlNoStore back to summary

isUseCacheControlNoStore	back to summary
public final boolean isUseCacheControlNoStore() Deprecated as of 4.2, in favor of `getCacheControl()` Return whether the HTTP 1.1 cache-control header value "no-store" is used. Annotations @Deprecated

public final boolean isUseCacheControlNoStore()

Deprecated

as of 4.2, in favor of getCacheControl()

Return whether the HTTP 1.1 cache-control header value "no-store" is used.

Annotations

@Deprecated

isUseExpiresHeader back to summary

isUseExpiresHeader	back to summary
public final boolean isUseExpiresHeader() Deprecated as of 4.2, in favor of `getCacheControl()` Return whether the HTTP 1.0 expires header is used. Annotations @Deprecated

public final boolean isUseExpiresHeader()

Deprecated

as of 4.2, in favor of getCacheControl()

Return whether the HTTP 1.0 expires header is used.

Annotations

@Deprecated

prepareResponse	back to summary
protected final void prepareResponse(HttpServletResponse response) Prepare the given response according to the settings of this generator. Applies the number of cache seconds specified for this generator. Parameters response:HttpServletResponse current HTTP response Since 4.2

prepareResponse

back to summary

protected final void prepareResponse(HttpServletResponse response)

Prepare the given response according to the settings of this generator. Applies the number of cache seconds specified for this generator.

Parameters

response:HttpServletResponse: current HTTP response

Since

4.2

preventCaching back to summary

preventCaching	back to summary
protected final void preventCaching(HttpServletResponse response) Deprecated as of 4.2, in favor of `applyCacheControl` Prevent the response from being cached. Only called in HTTP 1.0 compatibility mode. See `https://www.mnot.net/cache_docs`. Annotations @Deprecated

protected final void preventCaching(HttpServletResponse response)

Deprecated

as of 4.2, in favor of applyCacheControl

Prevent the response from being cached. Only called in HTTP 1.0 compatibility mode.

See https://www.mnot.net/cache_docs.

Annotations

@Deprecated

setAlwaysMustRevalidate back to summary

setAlwaysMustRevalidate	back to summary
public final void setAlwaysMustRevalidate(boolean mustRevalidate) Deprecated as of 4.2, in favor of `setCacheControl` An option to add 'must-revalidate' to every Cache-Control header. This may be useful with annotated controller methods, which can programmatically do a last-modified calculation as described in `org.springframework.web.context.request.WebRequest#checkNotModified(long)`. Default is "false". Annotations @Deprecated

public final void setAlwaysMustRevalidate(boolean mustRevalidate)

Deprecated

as of 4.2, in favor of setCacheControl

An option to add 'must-revalidate' to every Cache-Control header. This may be useful with annotated controller methods, which can programmatically do a last-modified calculation as described in org.springframework.web.context.request.WebRequest#checkNotModified(long).

Default is "false".

Annotations

@Deprecated

setCacheControl back to summary

setCacheControl	back to summary
public final void setCacheControl(CacheControl cacheControl) Set the `org.springframework.http.CacheControl` instance to build the Cache-Control HTTP response header. Since 4.2

public final void setCacheControl(CacheControl cacheControl)

Set the org.springframework.http.CacheControl instance to build the Cache-Control HTTP response header.

Since: 4.2

setCacheSeconds back to summary

setCacheSeconds	back to summary
public final void setCacheSeconds(int seconds) Cache content for the given number of seconds, by writing cache-related HTTP headers to the response: seconds == -1 (default value): no generation cache-related headers seconds == 0: "Cache-Control: no-store" will prevent caching seconds > 0: "Cache-Control: max-age=seconds" will ask to cache content For more specific needs, a custom `org.springframework.http.CacheControl` should be used. See Also `setCacheControl`

public final void setCacheSeconds(int seconds)

Cache content for the given number of seconds, by writing cache-related HTTP headers to the response:

seconds == -1 (default value): no generation cache-related headers
seconds == 0: "Cache-Control: no-store" will prevent caching
seconds > 0: "Cache-Control: max-age=seconds" will ask to cache content

For more specific needs, a custom org.springframework.http.CacheControl should be used.

See Also: setCacheControl

setRequireSession	back to summary
public final void setRequireSession(boolean requireSession) Set whether a session should be required to handle requests.

setSupportedMethods	back to summary
public final void setSupportedMethods(String... methods) Set the HTTP methods that this content generator should support. Default is GET, HEAD and POST for simple form controller types; unrestricted for general controllers and interceptors.

setSupportedMethods

back to summary

public final void setSupportedMethods(String... methods)

Set the HTTP methods that this content generator should support.

Default is GET, HEAD and POST for simple form controller types; unrestricted for general controllers and interceptors.

setUseCacheControlHeader	back to summary
public final void setUseCacheControlHeader(boolean useCacheControlHeader) Deprecated as of 4.2, since going forward, the HTTP 1.1 cache-control header will be required, with the HTTP 1.0 headers disappearing Set whether to use the HTTP 1.1 cache-control header. Default is "true". Note Cache headers will only get applied if caching is enabled (or explicitly prevented) for the current request. Annotations @Deprecated

setUseCacheControlHeader

back to summary

public final void setUseCacheControlHeader(boolean useCacheControlHeader)

Deprecated

as of 4.2, since going forward, the HTTP 1.1 cache-control header will be required, with the HTTP 1.0 headers disappearing

Set whether to use the HTTP 1.1 cache-control header. Default is "true".

Note

Cache headers will only get applied if caching is enabled (or explicitly prevented) for the current request.

Annotations

@Deprecated

setUseCacheControlNoStore back to summary

setUseCacheControlNoStore	back to summary
public final void setUseCacheControlNoStore(boolean useCacheControlNoStore) Deprecated as of 4.2, in favor of `setCacheControl` Set whether to use the HTTP 1.1 cache-control header value "no-store" when preventing caching. Default is "true". Annotations @Deprecated

public final void setUseCacheControlNoStore(boolean useCacheControlNoStore)

Deprecated

as of 4.2, in favor of setCacheControl

Set whether to use the HTTP 1.1 cache-control header value "no-store" when preventing caching. Default is "true".

Annotations

@Deprecated

setUseExpiresHeader

back to summary

public final void setUseExpiresHeader(boolean useExpiresHeader)

Deprecated

as of 4.2, since going forward, the HTTP 1.1 cache-control header will be required, with the HTTP 1.0 headers disappearing

Set whether to use the HTTP 1.0 expires header. Default is "false", as of 4.2.

Note

Cache headers will only get applied if caching is enabled (or explicitly prevented) for the current request.

Annotations

@Deprecated

setVaryByRequestHeaders

back to summary

public final void setVaryByRequestHeaders(String... varyByRequestHeaders)

Configure one or more request header names (e.g. "Accept-Language") to add to the "Vary" response header to inform clients that the response is subject to content negotiation and variances based on the value of the given request headers. The configured request header names are added only if not already present in the response "Vary" header.

Parameters

varyByRequestHeaders:String[]: one or more request header names

Since

4.3

public abstract Class WebContentGenerator

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail