No serializer found for class org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer and no properties discovered to create

BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) )

去掉FetchType.LAZY

@ManyToOne(fetch = FetchType.LAZY)

或

@JsonIgnoreProperties(value={"hibernateLazyInitializer","handler","fieldHandler"})

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