httpinvoker異常

org.springframework.remoting.RemoteAccessException: Could not deserialize result from HTTP invoker remote service [http://localhost:9080/]; nested exception is java.io.InvalidClassException: com.reward.domain.user; com.reward.domain.user; class invalid for deserialization遠程調用序列化出錯。緣由：服務端實體類繼承了Serializable接口，客戶端沒有。