“ Value of nested property ‘teacher‘ is null”内部嵌套对象为空的问题

其他 2020-10-15 13:34:48 阅读次数: 0

“ Invalid property ‘teacher’ of bean class [com.deserts.spring.mod.Student]: Value of nested property ‘teacher’ is null”内部嵌套对象为空

问题：在测试级联属性赋值时，直接给teacher属性赋值，会出现对象teacher是空的错误（teacher是Student类的一个属性，给Student类的属性赋值）

解决方案：配置一个property标签去引用一个对象，级联属性赋值用于修改具体属性值

这个错误让我知道了，级联属性赋值其实是用于修改具体对象的值，若对象为空，会报错

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转载自blog.csdn.net/weixin_45834777/article/details/109048909

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