针对您提出的问题“no serializer found for class cn.hutool.json.jsonnull and no properties disc”,这通常是由于在序列化或反序列化过程中,序列化库(如Jackson或Gson等)没有找到处理cn.hutool.json.JSONNull类的适当序列化器。以下是基于您提供的提示的分点回答: 1. 确认cn.hutool.json.JSONNull类是否存在于...
解决方法:在需要转换的实体类中给属性加上getter和setter方法(或者使用:lombok插件给实体类加上getter和setter注解)。 错误信息为:Request processing failed;nested exception is java.lang.IllegalArgumentException;No converter found for return value of type...的原因同样是实体类缺少getter和setter方法,解决方法如上...
解决:Could not write JSON: No serializer found for class *** and no properties错误 场景:使用RestController或者Controller注解将查询的实体装换成json字符串时报错。 原因:需要装换的对应实体类的属性缺少:getter和setter方法,导致将实体类装换的json格式类无法读取对应的属性从而报错。 解决方法:在需要装换的是...
org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: No serializer found for class com.xiaojukeji.epower.atreus.common.base.vo.smartcharging.order.OrderManagerVO and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_...
Could not write JSON: No serializer found for class java.lang.Object and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) ) ; 1. 2. 3. 意思是没有找到可用于Object的序列化器,也没有找到属性去创建BeanSerializer。
记一次 Could not write JSON: No serializer found for 的坑 今天在返回一个 DTO 实体的时候报错如下: 代码语言:javascript 复制 "message":"Could not write JSON: No serializer found for class com.entity.Question and no properties discovered to create BeanSerializer (to avoid exception, disable Seriali...
CouldnotwriteJSON：Noserializerfoundfor的坑 记⼀次 Could not write JSON: No serializer found for 的坑 今天在返回⼀个 DTO 实体的时候报错如下："message": "Could not write JSON: No serializer found for class com.entity.Question and no properties discovered to create BeanSerializer (to avoid ...
简介:解决:Could not write JSON: No serializer found for class *** and no properties错误 场景:使用RestController或者Controller注解将查询的实体装换成json字符串时报错。 原因:需要装换的对应实体类的属性缺少:getter和setter方法,导致将实体类装换的json格式类无法读取对应的属性从而报错。
com.fasterxml.jackson.databind.JsonMappingException: No serializer foundforclass dtos.MyDtoNoAccessors and no properties discovered to create BeanSerializer (to avoid exception,disableSerializationFeature.FAIL_ON_EMPTY_BEANS) ) 3. The Solution The obvious solution is to add getters for the fields – if...
Could not write JSON: 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) ) 根据提示,大致的意思应该是City类在转化为json时,有属性值是null,最...