org.springframework.beans.BeanInstantiationException: Failed to instantiate [demo.Words]: No default
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org.springframework.beans.BeanInstantiationException: Failed to instantiate [demo.Words]:
No default constructor found; nested exception is java.lang.NoSuchMethodException: demo.Words.<init>()
或者是:
org.springframework.beans.BeanInstantiationException: Failed to instantiate [Daomain.User]: Is it an abstract class?; nested exception is java.lang.InstantiationException: Daomain.User
这个异常就是实体类的构造函数引起的
解决方法:
要么不设置构造函数;
要么设置满参构造函数和空参函构造数;..
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