SpringBoot集成Redis引起的序列化問題怎么解決

這篇文章主要講解了“SpringBoot集成Redis引起的序列化問題怎么解決”，文中的講解內容簡單清晰，易于學習與理解，下面請大家跟著小編的思路慢慢深入，一起來研究和學習“SpringBoot集成Redis引起的序列化問題怎么解決”吧！

想必大家對SpringBoot可能已經很熟悉了，包括集成Redis這種常用的技術，之前一直用一貫的寫法去集成Redis，寫配置類沒發現過任何問題，但是上周在給Redis配置類加了一個Bean之后就出現了很難發現的問題。

配置類代碼 `@Configuration public class RedisConfig extends CachingConfigurerSupport {

[@Bean](https://my.oschina.net/bean)
public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
    RedisTemplate<Object, Object> redisTemplate = new RedisTemplate<>();
    redisTemplate.setConnectionFactory(redisConnectionFactory);

    // 使用Jackson2JsonRedisSerialize 替換默認序列化
    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);

    // 設置value的序列化規則和 key的序列化規則
    redisTemplate.setKeySerializer(new StringRedisSerializer());
    redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
    redisTemplate.setHashKeySerializer(new StringRedisSerializer());
    redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);
    redisTemplate.afterPropertiesSet();
    return redisTemplate;
}


[@Bean](https://my.oschina.net/bean)
public CacheManager cacheManager(RedisConnectionFactory factory) {
    RedisSerializer<String> redisSerializer = new StringRedisSerializer();
    Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);

    //解決查詢緩存轉換異常的問題
    ObjectMapper om = new ObjectMapper();
    om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
    om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
    jackson2JsonRedisSerializer.setObjectMapper(om);

    // 配置序列化（解決亂碼的問題）,過期時間30秒
    RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
            .entryTtl(Duration.ofSeconds(1800000))
            .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))
            .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer))
            .disableCachingNullValues();

    RedisCacheManager cacheManager = RedisCacheManager.builder(factory)
            .cacheDefaults(config)
            .build();
    return cacheManager;
}

}` 也就是增加了cacheManager()這個方法之后，數據量小的時候是沒有任何問題的，但是一旦放到線上，數據量一上來，那么整個Redis就導致內存溢出，整個服務都會掛掉。

錯誤日志： org.springframework.data.redis.serializer.SerializationException: Cannot deserialize; nested exception is org.springframework.core.serializer.support.SerializationFailedException: Failed to deserialize payload. Is the byte array a result of corresponding serialization for DefaultDeserializer?; nested exception is java.lang.OutOfMemoryError: Java heap space at org.springframework.data.redis.serializer.JdkSerializationRedisSerializer.deserialize(JdkSerializationRedisSerializer.java:84) ~[spring-data-redis-2.1.6.RELEASE.jar!/:2.1.6.RELEASE] at org.springframework.session.data.redis.RedisOperationsSessionRepository.onMessage(RedisOperationsSessionRepository.java:538) ~[spring-session-data-redis-2.1.5.RELEASE.jar!/:2.1.5.RELEASE] at org.springframework.data.redis.listener.RedisMessageListenerContainer.executeListener(RedisMessageListenerContainer.java:250) [spring-data-redis-2.1.6.RELEASE.jar!/:2.1.6.RELEASE] at org.springframework.data.redis.listener.RedisMessageListenerContainer.processMessage(RedisMessageListenerContainer.java:240) [spring-data-redis-2.1.6.RELEASE.jar!/:2.1.6.RELEASE] at org.springframework.data.redis.listener.RedisMessageListenerContainer.lambda$dispatchMessage$0(RedisMessageListenerContainer.java:986) [spring-data-redis-2.1.6.RELEASE.jar!/:2.1.6.RELEASE] at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_191] Caused by: org.springframework.core.serializer.support.SerializationFailedException: Failed to deserialize payload. Is the byte array a result of corresponding serialization for DefaultDeserializer?; nested exception is java.lang.OutOfMemoryError: Java heap space at org.springframework.core.serializer.support.DeserializingConverter.convert(DeserializingConverter.java:78) ~[spring-core-5.1.6.RELEASE.jar!/:5.1.6.RELEASE] at org.springframework.core.serializer.support.DeserializingConverter.convert(DeserializingConverter.java:36) ~[spring-core-5.1.6.RELEASE.jar!/:5.1.6.RELEASE] at org.springframework.data.redis.serializer.JdkSerializationRedisSerializer.deserialize(JdkSerializationRedisSerializer.java:82) ~[spring-data-redis-2.1.6.RELEASE.jar!/:2.1.6.RELEASE] ... 5 common frames omitted Caused by: java.lang.OutOfMemoryError: Java heap space

至于為什么注入這個bean之后會出現這個問題，去了這個bean之后，不會再出現這個問題，目前我還沒找到原因，分享出來大家一起參考，避免在網上找的配置應用在自己的代碼中出現問題，也歡迎踩過坑的朋友來解答。

感謝各位的閱讀，以上就是“SpringBoot集成Redis引起的序列化問題怎么解決”的內容了，經過本文的學習后，相信大家對SpringBoot集成Redis引起的序列化問題怎么解決這一問題有了更深刻的體會，具體使用情況還需要大家實踐驗證。這里是億速云，小編將為大家推送更多相關知識點的文章，歡迎關注！