feign.codec.DecodeException: Type definition error: [simple type, class xxxDto]； nested exception is

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#java #开发语言

在使用Feign进行远程调用时，遇到了DecodeException，原因是DTO类缺少无参构造器。当类定义包含有参构造器或者使用了@Builder注解时，必须显式提供无参构造器，以便在反序列化过程中正确实例化对象。这个问题强调了在处理JSON序列化和反序列化时，无参构造器的重要性。

feign.codec.DecodeException: Type definition error: [simple type, class xxxDto]; nested exception is cannot deserialize from Object value (no delegate- or property-based Creator)

序列化问题，
在DTO序列化成JSON时，需要依赖于空参构造器。
注意：如果添加了有参构造器，无参构造器不会默认创建。如果使用@Builder注解，需要单独添加无参构造器

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