它可以像预期的那样用于序列化(当我得到User时),但是对于反序列化(注册User),Jackson返回以下内容:
Resolved [org.springframework.http.converter.HttpMessageNotReadableExceptionfound for an instance of `.entity.User`, to assign to property 'id'; nested exception is com.fasterxml.jackson.databind.
(MapSerializer.java:941) at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.(DefaultSerializerProvider.java:319)
at com.fasterxml.jackson.databi