SerializationException: Could not read JSON: Unrecognized field

- 日理万妓 2023-10-04 23:54 40阅读 0赞

org.springframework.data.redis.serializer.SerializationException: Could not read JSON: Unrecognized field

原因：对象中如果有`setXXX`或`getXXX`方法，或返回值为`Boolean`或`boolean`的`isXXX`方法，但没有对应的`XXX`字段，使用`Jackson2JsonRedisSerializer`序列化后json中会有对应的key值`XXX`，从而会导致反序列化失败。

解决办法：在类加上注解`@JsonIgnoreProperties(ignoreUnknown = true)`忽略实体中没有对应的json的key值，或者在set、get或is开头的方法上加上`@JsonIgnore`注解。

代码定位：（第一次序列化时调用，后续从缓存中取）  
DefaultValueOperations 235 set  
AbstractOperations 127 rawValue  
org.springframework.data.redis.serilizer.Jackson2JsonRedisSerializer 86 serilizer  
com.fasterxml.jackson.databind.**ObjectMapper** 3428 **writeValueAsBytes**  
ObjectMapper 4094 \_configAndWriteValue  
DefaultSerializerProvider 308 serializeValue  
SerializerProvider 713 findTypedValueSerializer  
SerializerProvider 510 findValueSerializer  
SerializerProvider 1336 \_createAndCacheUntypedSerializer **此处将序列化器加入缓存**  
SerializerProvider 1388 \_createUntypedSerializer  
BeanSerializerFactory 165 createSerializer  
BeanSerializerFactory 216 \_createSerializer2  
BasicSerializerFactory 346 findSerializerByAnnotations  
BasicBeanDescription findJsonValueAccessor 252  
POJOPropertiesCollector getJsonValueAccessor 196  
POJOPropertiesCollector collectAll() 309  
POJOPropertiesCollector \_addMethods 533  
POJOPropertiesCollector \_addGetterMethod 583、586  
**BeanUtil okNameForRegularGetter** 38  
**BeanUtil okNameForIsGetter** 69