👀 Views: 13 💬 Answers: 1 📅 Created: 2025-06-08

spring-boot caching ehcache hibernate Java

I've spent hours debugging this and I'm experiencing an issue with caching in my Spring Boot application. I have a simple service that retrieves user data, and I've implemented caching using Spring's `@Cacheable` annotation to improve performance. However, when I update a user entity in the database, the cache does not seem to be invalidated as expected. I'm using Spring Boot 2.5.4 and Hibernate 5.4.32, and my caching solution is based on Ehcache. Here's a simplified version of my service: ```java @Service public class UserService { @Autowired private UserRepository userRepository; @Cacheable(value = "users") public User getUserById(Long id) { return userRepository.findById(id).orElse(null); } @Transactional public User updateUser(Long id, User updatedUser) { User user = userRepository.findById(id).orElseThrow(); user.setName(updatedUser.getName()); user.setEmail(updatedUser.getEmail()); return userRepository.save(user); } } ``` The caching works great when I first retrieve a user, but after I update the user using the `updateUser` method, if I call `getUserById` again with the same ID, it returns the stale cached data instead of the updated user information. I thought using `@CacheEvict` might help, so I tried adding it to my `updateUser` method like this: ```java @CacheEvict(value = "users", key = "#id") @Transactional public User updateUser(Long id, User updatedUser) { // ... same implementation as before } ``` Despite adding this annotation, I still see that the cache isn't being invalidated. The relevant section in `application.properties` is set up for Ehcache like this: ```properties spring.cache.type=ehcache spring.cache.ehcache.config=classpath:ehcache.xml ``` In my `ehcache.xml`, I have defined a simple cache configuration, but I suspect there might be something amiss there. Am I missing something in my setup or the annotations? Any help would be appreciated! This is for a desktop app running on Ubuntu 22.04. Any ideas how to fix this?