Could not write content: No serializer found for class and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) )
1. 问题
org.springframework.http.converter.HttpMessageNotWritableException: Could not write content: No serializer found for class com.xianzhi.jinba.vo.NewNewsFlash$Explain and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) ) (through reference chain: java.util.HashMap["body"]->java.util.ArrayList[]->java.util.HashMap["explain"]->java.util.ArrayList[]); nested exception is com.fasterxml.jackson.databind.JsonMappingException: No serializer found for class com.xianzhi.jinba.vo.NewNewsFlash$Explain and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) ) (through reference chain: java.util.HashMap["body"]->java.util.ArrayList[]->java.util.HashMap["explain"]->java.util.ArrayList[])

2. 解决方案
原因,bean中属性为private,改为public
Could not write content: No serializer found for class and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) )的更多相关文章
- 【实体 报错 】No serializer found for class org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer and no properties discovered to create BeanSerializer
HTTP Status 500 - Could not write content: No serializer found for class org.hibernate.proxy.pojo.ja ...
- No serializer found for class org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer and no properties discovered to create BeanSerializer
异常信息如下所示: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for cla ...
- Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.apache.catalina.connector.CoyoteWriter and no properties discovered to create BeanSerializer
一.什么是序列化In computer science, in the context of data storage, serialization is the process of transla ...
- No serializer found for class com.bean.user and no properties discovered to create BeanSerializer
解决方法: 方法1:将bean目录下的实体类属性由private改为public(不推荐): 方法2:给实体类属性设置setter和getter方法(推荐使用).
- 在访问RESTful接口时出现:Could not write content: No serializer found for class的问题解决小技巧收集
注意:市面上对于写RESTful是用RestFul,其实是不规范的,标准写法RESTful. 在Java上,处理这个应该是没有继承Serializable类,然后通过Eclipse生成serialVe ...
- 【hibernate 报错】No serializer found for class org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer 【get和load的区别】
报错: HTTP Status 500 - Could not write content: No serializer found for class org.hibernate.proxy.poj ...
- HttpMessageNotWritableException: Could not write JSON: No serializer found for class ****
今天碰到一个异常,下面是错误信息 org.springframework.http.converter.HttpMessageNotWritableException: Could not write ...
- 异常处理:No serializer found for class org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer
No serializer found for class org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer and no pro ...
- Spring MVC 解决 Could not write JSON: No serializer found for class java.lang.Object
Spring MVC 解决 Could not write JSON: No serializer found for class java.lang.Object 资料参考:http://stack ...
随机推荐
- sql server timeout
SqlConnection.ConnectionTimeout https://docs.microsoft.com/en-us/dotnet/api/system.data.sqlclient.sq ...
- Sublime编辑器上的Linux Vim插件常用快捷键
Sublime编辑器上的 Vim 插件常用快捷键 vim 的设置: 在Reference-> User Settings(首选项--> 设置用户) 选项,点击进入配置文件编辑状态,默认的用 ...
- 用 Rprof 进行性能分析
R 提供了内置函数 Rprof( ) 对代码的性能进行分析.在分析过程中,会有一个抽样程序,并且是和后续代码一起运行的,直到分析结束.默认情况下,抽样程序基本上每隔20 毫秒就会记录一下当前 R 在运 ...
- Kotlin中的object 与companion object的区别
之前写了一篇Kotlin中常量和静态方法的文章,最近有人提出一个问题,在companion object中调用外部的成员变量会调用不到,这才意识到问题,本篇文章会带着这个疑问来解决问题. 一. obj ...
- Java回顾之反射
在这一篇文章里,我们关注反射及其相关话题. 反射可以帮助我们查看指定类型中的信息.创建类型的实例,调用类型的方法.我们平时使用框架,例如Spring.EJB.Hibernate等都大量的使用了反射技术 ...
- 为什么需要消息队列MQ?
主要原因:是在高并发情况下,由于来不及同步处理,请求往往会发生堵塞,比如诸多的insert.update之类的请求同时到达mysql,直接导致无数的行锁表锁,甚至最后请求会堆积很多,从而触发大量的to ...
- 实时更新数据,无需刷新:a,如何使用Turbolinks clearCache(), b Action Cable
视频: https://gorails.com/episodes/how-to-use-turbolinks-clearCache?autoplay=1 用途: 更方便的实时从服务器更新局部网页,在这 ...
- Python的第一次作业
题目1 : 描述:通过趣味的打怪来学习random随机函数. 代码: from random import * import types choc=0 hs=[100] numer=[randint( ...
- java中进行四舍五入
在oracle中有一个很好的函数进行四舍五入,round(), select round(111112.23248987,6) from dual; 但是java的Number本身不提供四舍五入的方法 ...
- kmp算法中的next数组实例解释
假设求串′ababaaababaa′的next数组 模式串 a b a b a a a b a b a a 下标 1 2 3 4 5 6 7 8 9 10 11 12 1.前两位:next数组前两位一 ...