Currently in my project we are caching methods using ehcache and Spring cache system, however I don't know which mechanism we should use to cache components like header, footer, banners etc...
Does Hybris provides a mechanism via XML to cache these components?
By default Hybris already caches CMS components using an EhCache region called cmsCacheRegion. You can find configuration for this bean in acceleratorcms-cache-spring.xml
This can be enabled/disabled with the property cms.cache.enabled. If using Cloud Commerce, this property will be enabled by default on storefront nodes.
If you would like to extend the CMS component types being cached, see bean defaultCacheKeyProviders in acceleratorcms-spring.xml. You should mostly be covered though as there's an entry for AbstractCMSComponent
Some more information here: https://help.sap.com/viewer/4c33bf189ab9409e84e589295c36d96e/2105/en-US/8abd87cc866910149aa5e52e716d568e.html?q=acceleratorcms