Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for cl.
一、什么是序列化Incomputerscience,inthecontextofdatastorage,serializationistheprocessoftranslatingdatastructuresorobjectstateintoaformatthatcanbestored(forexample,inafileormemorybuffer,ortransmittedacrossanet