在项目搭建过程中遇到的一个springboot反序列化过程中的问题。
springboot集成feign时，调用API接收返回数据时，服务异常，异常日志如下。

Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of `com.louddt.datacollect.core.api.BaseResponse` (no Creators, like default constructor, exist): cannot deserialize from Object value (no delegate- or property-based Creator)
 at [Source: (PushbackInputStream); line: 1, column: 2]
	at com.fasterxml.jackson.databind.exc.InvalidDefinitionException.from(InvalidDefinitionException.java:67) ~[jackson-databind-2.11.3.jar:2.11.3]
	at com.fasterxml.jackson.databind.DeserializationContext.reportBadDefinition(DeserializationContext.java:1615) ~[jackson-databind-2.11.3.jar:2.11.3]
	at com.fasterxml.jackson.databind.DatabindContext.reportBadDefinition(DatabindContext.java:400) ~[jackson-databind-2.11.3.jar:2.11.3]
	at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1077) ~[jackson-databind-2.11.3.jar:2.11.3]
	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1332) ~[jackson-databind-2.11.3.jar:2.11.3]
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:331) ~[jackson-databind-2.11.3.jar:2.11.3]
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:164) ~[jackson-databind-2.11.3.jar:2.11.3]
	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4526) ~[jackson-databind-2.11.3.jar:2.11.3]
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3521) ~[jackson-databind-2.11.3.jar:2.11.3]

仔细分析了错误日志，已经给出了提示信息“no Creators, like default constructor（有道翻译：没有创作者，像默认构造函数）”
查看项目代码发现，该对象只添加了有参构造，没有无参构造方法，导致反序列化时报出异常。
解决办法：
1、对该对象添加无参构造，
2、使用lombok注解 @NoArgsConstructor
两种方法均可解决该问题，记录一下，以供参考。