ajax返回json格式 报500 Internal Server Error

nested exception is com.fasterxml.jackson.databind.JsonMappingException: No serializer

found for class org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer and no properties discovered

to create BeanSerializer (to avoid exception, disable SerializationConfig.SerializationFeature.FAIL_ON_EMPTY_BEANS

) ) (through reference chain: com.tgb.entity.CardInfo["cardPersonalInfo"]->com.tgb.entity

.CardPersonalInfo_$$_javassist_15["handler"])

原因是我的实体CardInfo级联着实体CardPersonalInfo，实体CardPersonalInfo又级联CardInfo，我后台返回CardInfo JSON格式的时候报序列化错误，原因是CardInfo关联的CardPersonalInfo实体对象为空的时候就会报

我的解决方案就是在CardPersonalInfo实体类上面加上一下注解：

@JsonIgnoreProperties(value={"hibernateLazyInitializer","handler","operations","roles","menus"})

这样生成的JSON中不会产生多余的字段。