In an annotation-based Spring MVC controller, what is the preferred way to set cache headers for a specific path?
org.springframework.web.servlet.support.WebContentGenerator, which is the base class for all Spring controllers has quite a few methods dealing with cache headers:
/* Set whether to use the HTTP 1.1 cache-control header. Default is "true". * <p>Note: Cache headers will only get applied if caching is enabled * (or explicitly prevented) for the current request. */ public final void setUseCacheControlHeader(); /* Return whether the HTTP 1.1 cache-control header is used. */ public final boolean isUseCacheControlHeader(); /* Set whether to use the HTTP 1.1 cache-control header value "no-store" * when preventing caching. Default is "true". */ public final void setUseCacheControlNoStore(boolean useCacheControlNoStore); /* Cache content for the given number of seconds. Default is -1, * indicating no generation of cache-related headers. * Only if this is set to 0 (no cache) or a positive value (cache for * this many seconds) will this class generate cache headers. * The headers can be overwritten by subclasses, before content is generated. */ public final void setCacheSeconds(int seconds);
They can either be invoked within your controller prior to content generation or specified as bean properties in Spring context.