java.lang.RuntimeException: org.springframework.data.redis.serializer.SerializationException: Could not read JSON: Invalid UTF-32 character 0x227a5c22 (above 0x0010ffff) at char #15, byte #63); nested exception is java.io.CharConversionException: Invalid UTF-32 character 0x227a5c22 (above 0x0010ffff) at char #15, byte #63)
2020/8/14 上午11:38:18 org.springframework.data.redis.serializer.SerializationException: Could not read JSON: Invalid UTF-32 character 0x227a5c22 (above 0x0010ffff) at char #15, byte #63); nested exception is java.io.CharConversionException: Invalid UTF-32 character 0x227a5c22 (above 0x0010ffff) at char #15, byte #63)
2020/8/14 上午11:38:18 at org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer.deserialize(Jackson2JsonRedisSerializer.java:75)
2020/8/14 上午11:38:18 at org.springframework.data.redis.core.AbstractOperations.deserializeValue(AbstractOperations.java:335)
2020/8/14 上午11:38:18 at org.springframework.data.redis.core.AbstractOperations$ValueDeserializingRedisCallback.doInRedis(AbstractOperations.java:61)
2020/8/14 上午11:38:18 at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:228)
2020/8/14 上午11:38:18 at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:188)
2020/8/14 上午11:38:18 at org.springframework.data.redis.core.AbstractOperations.execute(AbstractOperations.java:96)
2020/8/14 上午11:38:18 at org.springframework.data.redis.core.DefaultValueOperations.get(DefaultValueOperations.java:53)
主要为设置redis时没有带上时间单位，如TimeUnit.SECONDS
解决方案参考：https://blog.csdn.net/qq_43077857/article/details/103072914