【Vue】Cannot set reactive property on undefined,null,or primitive value:undefined

【Vue】Cannot set reactive property on undefined,null,or primitive value:undefined

一、背景描述技术栈:vue + element报错内容:Cannot set reactive property on undefined, null, or primitive value:undefined如下图所示:二、报错原因根据报错内容翻译一下,就是不能对 undefined,null 或...

attempted to return null from a method with a primitive return type

 问题:springboot+mybatisplus 项目,查询的时候报:attempted to return null from a method with a primitive return type。问题分析:后台sql未查询出数据,导致返回的内容与接口中的入参类型不一致,报错。...

org.hibernate.PropertyAccessException: Null value was assigned to a property of primitive type setter of com.*.Paper.totalTime

at org.hibernate.property.BasicPropertyAccessor$BasicSetter.set(BasicPropertyAccessor.java:109) at org.hibernate.tuple.entity.AbstractEntityTuplizer.s...

null value was assigned to a property of primitive type setter of原因解决方法

原理如下: Integer与int的区别: Integer是对象.     因此可以为null(对象可以为空.),即property   =   null;      int   是普通类型, 不可以为null...

delete attempted to return null from a method with a primitive return type (int)

 今天被自己给蠢死了 今天在代码中遇到这个错误, 百度翻译一下:映射方法,从一org.system.mapper.child.chmorganizationexaminationmapper.delete返回零作为一个原始的方法的返回类型(int)。 org.apache.ibatis.b...

is present but cannot be translated into a null value due to being declared as a primitive type

解决办法:把基本类型改为对象,譬如此处将pageId的类型由int 改为Integer 2016-10-19 19:36:11.275 DEBUG [http-nio-9999-exec-2][org.springframework.web.servlet.DispatcherServlet] La...

本页面内关键词为智能算法引擎基于机器学习所生成,如有任何问题,可在页面下方点击"联系我们"与我们沟通。