CODEWITHSUNDEEP
javaspring-bootcachingredisspring-data-redis
retr0
retr0

Reputation: 39

DefaultSerializer requires a Serializable payload but received an object of type [org.springframework.http.ResponseEntity]

I want to cache the List in redis. Below is the service method for the same:-

@Autowired
private RedisTemplate<String, Object> redisTemplate;

@Cacheable(value = "notes", key = "#userId")
public ResponseEntity<?> getAllNotes(Integer userId) {

        HashOperations<String, String, Object> hashOperations = redisTemplate.opsForHash();
        //Check if the cacheKey contains this userId
        if (hashOperations.hasKey(cacheKey, userIdAsKey)) {
            List<NoteResponse> noteResponses = (List<NoteResponse>) hashOperations.get(cacheKey, userIdAsKey);
            return ResponseEntity.ok(noteResponses);
        }

        List<Note> notes = noteRepository.findAllByUserId(userId);
        List<NoteResponse> noteResponses = Helper.getNoteResponse(notes);
        hashOperations.put(cacheKey, userIdAsKey, noteResponses);
        return ResponseEntity.ok(noteResponses);
}

but i am getting this exception: java.lang.IllegalArgumentException: DefaultSerializer requires a Serializable payload but received an object of type [org.springframework.http.ResponseEntity]

Upvotes: 3

Views: 6463

Answers (1)

Vifieh
Vifieh

Reputation: 41

Add implements Serializable to the end of the NoteResponse for example

public class NoteResponse implements Serializable

Upvotes: 3

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