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SUBSCRIBE FOR UPDATESKeeping Data Fresh: Spring Cache Refresh
Caching is great for speed, but what happens when your data changes? If you don't update your cache, your users will see old "stale" data. Today, we’re learning how to refresh cache entries using Spring Cache and EhCache.
Why Refreshing Cache is Critical
Imagine a user updates their profile picture, but your website still shows the old one because the old image is stuck in the cache. To fix this, we need to tell Spring to update that specific entry whenever a change happens.
The Solution: @CachePut. Unlike @Cacheable which skips the method, @CachePut always runs the method and updates the cache with the fresh result!
How to Implement Cache Updates
- Step 1: Use
@CachePuton your update methods. - Step 2: Match the
keyandvalue(cache name) to your original@Cacheablemethod. - Step 3: Watch as Spring automatically replaces the old data with the new return value.
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