报错 org.springframework.beans.factory.NoSuchBeanDefinitionException 的解决办法

蔚落 2021-09-27 15:12 704阅读 0赞

严重: Context initialization failed  
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userController': Unsatisfied dependency expressed through field 'userService'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.park.client.service.UserService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: \{@org.springframework.beans.factory.annotation.Autowired(required=true)\}  
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:587)  
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:91)  
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:373)  
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1348)  
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:578)  
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:501)  
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)  
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)  
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)  
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)  
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760)  
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869)  
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)  
    at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:672)  
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:638)  
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:686)  
    at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:554)  
    at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:499)  
    at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:172)  
    at javax.servlet.GenericServlet.init(GenericServlet.java:158)  
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)  
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)  
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)  
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5231)  
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5518)  
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)  
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)  
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)  
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)  
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)  
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)  
    at java.lang.Thread.run(Thread.java:748)  
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.park.client.service.UserService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: \{@org.springframework.beans.factory.annotation.Autowired(required=true)\}  
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1509)  
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1104)  
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1065)  
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:584)  
    ... 31 more

十月 19, 2018 10:47:14 下午 org.apache.catalina.core.ApplicationContext log  
严重: StandardWrapper.Throwable

**报错原因:spring.xml没有扫描到service接口的实现类，**