Spring Boot 2 Caching¶

Types of cache¶

  1. In-memory caching
  2. Database caching
  3. Web server caching
  4. CDN caching

Cache annotations¶

  1. @EnableCaching

  2. @Cacheable

    @Cacheable(value="books", key="#isbn")
public Book findStoryBook(ISBN isbn, boolean checkWarehouse, boolean includeUsed)

@Cacheable(value="books", key="#isbn.rawNumber")
public Book findStoryBook (ISBN isbn, boolean checkWarehouse, boolean includeUsed)

@Cacheable(value="books", key="T(classType).hash(#isbn)")
public Book findStoryBook (ISBN isbn, boolean checkWarehouse, boolean includeUsed)

@Cacheable(value="book", condition="#name.length < 50")
public Book findStoryBook (String name)

  3. @CachePut

  4. @CacheEvict

  5. @Caching

Register a cache engine¶

  • JCache (JSR-107) (EhCache 3, Hazelcast, Infinispan, and others)
  • EhCache 2.x
  • Hazelcast
  • Infinispan
  • Couchbase
  • Redis
  • Caffeine
  • Simple cache