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Comment créer RedisCacheManager dans spring-data 2.0.x

Je migre mon application de Spring Boot 1.5.x vers 2.0.x. Je veux garder les jedis mais j'ai un problème avec l'instanciation de RedisCacheManager.

Maintenant, la signature du constructeur est

RedisCacheManager(RedisCacheWriter cacheWriter, RedisCacheConfiguration defaultCacheConfiguration)

Mais avant c'était:

RedisCacheManager(RedisOperations redisOperations)

Je définis ce bean ayant seulement RedisTemplate dans la portée:

@Bean
public RedisCacheManager redisCacheManager(RedisTemplate redisTemplate) {
    HandleRedisCacheManager redisCacheManager = new HandleRedisCacheManager(redisTemplate);
    redisCacheManager.setUsePrefix(true);
    return redisCacheManager;
}

Comment est-il censé être créé maintenant?

javaspring-bootredisspring-datajedis
7
Nikita

Il n'accepte plus un RedisTemplate. Essayez donc ceci:

@Bean
public RedisCacheManager cacheManager(RedisConnectionFactory redisConnectionFactory,
                                      ResourceLoader resourceLoader) {
    RedisCacheManager.RedisCacheManagerBuilder builder = RedisCacheManager
            .builder(redisConnectionFactory)
            .cacheDefaults(determineConfiguration(resourceLoader.getClassLoader()));
    List<String> cacheNames = this.cacheProperties.getCacheNames();
    if (!cacheNames.isEmpty()) {
        builder.initialCacheNames(new LinkedHashSet<>(cacheNames));
    }
    return builder.build();
}

private org.springframework.data.redis.cache.RedisCacheConfiguration determineConfiguration(
        ClassLoader classLoader) {
    if (this.redisCacheConfiguration != null) {
        return this.redisCacheConfiguration;
    }
    CacheProperties.Redis redisProperties = this.cacheProperties.getRedis();
    RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();

    ObjectMapper mapper = new Jackson2ObjectMapperBuilder()
            .modulesToInstall( new SimpleModule().addSerializer( new NullValueSerializer(null)) )
            .failOnEmptyBeans( false )
            .build();
    mapper.enableDefaultTyping( ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY);

    GenericJackson2JsonRedisSerializer serializer = new GenericJackson2JsonRedisSerializer( mapper );

    //get the mapper b/c they registered some internal modules
    config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(serializer));;

    if (redisProperties.getTimeToLive() != null) {
        config = config.entryTtl(redisProperties.getTimeToLive());
    }
    if (redisProperties.getKeyPrefix() != null) {
        config = config.prefixKeysWith(redisProperties.getKeyPrefix());
        config = config.computePrefixWith(cacheName -> redisProperties.getKeyPrefix() + cacheName + "::");
    }
    if (!redisProperties.isCacheNullValues()) {
        config = config.disableCachingNullValues();
    }
    if (!redisProperties.isUseKeyPrefix()) {
        config = config.disableKeyPrefix();
    }
    return config;
}
5
Chris Savory

essayez de suivre le code, cela fonctionne pour moi sur spring-boot 2.1.0.

@Bean
public RedisCacheManager redisCacheManager(LettuceConnectionFactory lettuceConnectionFactory) {
    RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
            .disableCachingNullValues()
            .entryTtl(Duration.ofHours(1))
            .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(RedisSerializer.json()));
    redisCacheConfiguration.usePrefix();

   return RedisCacheManager.RedisCacheManagerBuilder.fromConnectionFactory(lettuceConnectionFactory)
                    .cacheDefaults(redisCacheConfiguration).build();

}
11
Starry