SpringBean instantiation via constructor failed nested exception Constructor threw exception
Posted 九师兄
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1.概述
我今天一个程序报错依赖异常。错误信息如下 Caused by:UnsatisfiedDependencyException: Error creating bean with name \'extensionServiceImpl\': Unsatisfied dependency expressed through field \'zkService\'; nested exception is BeanCreationException: Error creating bean with name \'zkService\' defined in URL [xxx.jar!/xxx/ZkService.class]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.dbapp.baas.monitor.infrastructure.ZkService]: Constructor threw exception; nested exception is java.lang.NullPointerException
先说一下我的代码结构
原本的代码结构如下。
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