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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(nèi)容簡單清晰,易于學(xué)習(xí)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(xué)習(xí)“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(jīng)很熟悉了,包括集成Redis這種常用的技術(shù),之前一直用一貫的寫法去集成Redis,寫配置類沒發(fā)現(xiàn)過任何問題,但是上周在給Redis配置類加了一個(gè)Bean之后就出現(xiàn)了很難發(fā)現(xiàn)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(rèn)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(shè)置value的序列化規(guī)則和 key的序列化規(guī)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(zhuǎn)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(shí)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(gè)方法之后,數(shù)據(jù)量小的時(shí)候是沒有任何問題的,但是一旦放到線上,數(shù)據(jù)量一上來,那么整個(gè)Redis就導(dǎo)致內(nèi)存溢出,整個(gè)服務(wù)都會(huì)掛掉。
錯(cuò)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(gè)bean之后會(huì)出現(xiàn)這個(gè)問題,去了這個(gè)bean之后,不會(huì)再出現(xiàn)這個(gè)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(wǎng)上找的配置應(yīng)用在自己的代碼中出現(xiàn)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(nèi)容了,經(jīng)過本文的學(xué)習(xí)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(huì),具體使用情況還需要大家實(shí)踐驗(yàn)證。這里是億速云,小編將為大家推送更多相關(guān)知識點(diǎn)的文章,歡迎關(guān)注!
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