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java - 创建名为“redisConnectionFactory”的 bean 时出错

问题描述

我们正在使用 RedisTemplate 进行 redis 调用。

 @Bean
public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
    RedisTemplate<Object, Object> redisTemplate = new RedisTemplate<>();
    redisTemplate.setConnectionFactory(redisConnectionFactory);
    redisTemplate.setEnableTransactionSupport(true);
    // Replace the default serialization with Jackson2JsonRedisSerialize
    Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);

    ObjectMapper objectMapper = new ObjectMapper();
    objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
    objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);

    jackson2JsonRedisSerializer.setObjectMapper(objectMapper);

    // Set the value of the serialization rules and key serialization rules
    redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
    redisTemplate.setKeySerializer(new StringRedisSerializer());

    redisTemplate.setHashKeySerializer(jackson2JsonRedisSerializer);
    redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);

    redisTemplate.setDefaultSerializer(jackson2JsonRedisSerializer);
    redisTemplate.setEnableDefaultSerializer(true);
    redisTemplate.afterPropertiesSet();
    return redisTemplate;
}

我们每分钟进行大约1K 次调用，例如redisTemplate.opsForHash().get(HASH_KEY, key);

我们得到以下错误：

stack_trace: org.springframework.beans.factory.BeanCreationNotAllowedException: Error creating bean with name 'redisConnectionFactory': Singleton bean creation not allowed while singletons of this factory are in destruction (Do not request a bean from a BeanFactory in a destroy method implementation!)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:212)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:611)
at org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:340)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.detectPersistenceExceptionTranslators(PersistenceExceptionTranslationInterceptor.java:168)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:150)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691)

我们正在使用 SpringBoot + Redis 2.8.24 + JDK11。

任何输入？

标签： javaspring-bootcachingredisspring-data-redis

解决方案

以下方法可能对您有用。

@Configuration
public class RedisConfig {

    @Value("${spring.redis.host}")
    private String host;
    @Value("${spring.redis.port}")
    private Integer port;
    @Value("${spring.redis.database}")
    private Integer database;

    @Bean
    JedisConnectionFactory jedisConnectionFactory() {
        RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration(host, port);
        redisStandaloneConfiguration.setDatabase(database);
        return new JedisConnectionFactory(redisStandaloneConfiguration);
    }

    @Bean
    public RedisTemplate<String, Object> redisTemplate(JedisConnectionFactory jedisConnectionFactory) {
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(jedisConnectionFactory);
        template.setKeySerializer(new StringRedisSerializer());
        template.setValueSerializer(new StringRedisSerializer());
        template.setHashKeySerializer(new GenericToStringSerializer<>(String.class));
        template.setHashValueSerializer(new GenericToStringSerializer<>(String.class));
        return template;
    }
}

您可以根据需要设置序列化，并可以基于此访问数据。

public class RedisHashRepository {

    final Logger logger = LoggerFactory.getLogger(RedisHashRepository.class);

    private HashOperations hashOperations;

    @Autowired
    public RedisHashRepository(RedisTemplate redisTemplate) {
        this.hashOperations = redisTemplate.opsForHash();
    }

    public String get(String mainKey,String key) {
        return (String) hashOperations.get(mainKey, key);
    }
}

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