HTTP 状态 500 – servlet [telusko] 的内部服务器错误消息 Servlet.init() 抛出异常

Question

类型异常报告
servlet [telusko] 的消息 Servlet.init() 抛出异常
说明 服务器遇到了阻止其完成请求的意外情况。

异常 javax.servlet.ServletException: Servlet.init() for servlet [telusko] 抛出异常 org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve .java:92) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) org.apache.coyote.http11.Http11Processor .service(Http11Processor.java:408) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:770) org.apache.tomcat.util .net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) org.apa che.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Thread.java:748) 根本原因

org.springframework.beans.factory.UnsatisfiedDependencyException：创建名为“indexController”的bean时出错：通过字段“fdao”表达的不满意依赖； 嵌套异常是 org.springframework.beans.factory.NoSuchBeanDefinitionException：没有可用的“com.telusko.tusk.dao.FeedbackDao”类型的合格 bean：预计至少有 1 个 bean 有资格作为自动装配候选。 依赖注解：{@org.springframework.beans.factory.annotation.Autowired(required=true)} org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:588) org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366) org.springframework.beans.factory.supportableCapwireBeansFactoryAutowireCapwireBeans.AbsFactoryAutowiredAnnotationBeanPostProcessor. java:1264) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.org.spring.framework.java:483) factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFac tory.java:306) org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) org.springframework beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryApplicationInitialization(AbstractApplicationContext.finishBeanFactoryApplicationInitialization) java:866) org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:668) org.springframework.web.servlet.FrameworkServlet. createWebApplicationContext(FrameworkServlet.java:634) org.springframework.web.servlet.FrameworkServlet.createWebApplicatio nContext(FrameworkServlet.java:682) org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:553) org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:494) org.springframework.web。 servlet.HttpServletBean.init(HttpServletBean.java:138) javax.servlet.GenericServlet.init(GenericServlet.java:158) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) org.apache.catalina。 Valve.ErrorReportValve.invoke(ErrorReportValve.java:92) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) org apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:770) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doR un(NioEndpoint.java:1415) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) java.util.concurrent。 ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Thread.java:748) 根本原因

org.springframework.beans.factory.NoSuchBeanDefinitionException：没有可用的“com.telusko.tusk.dao.FeedbackDao”类型的合格bean：预计至少有1个符合自动装配候选者的bean。 依赖注解：{@org.springframework.beans.factory.annotation.Autowired(required=true)} org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1486) org.springframework.beans.factory. support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1104) org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) org.springframework.beans.factory.annotation.AutowireProcessElementAnnotation.AutowireProcessElementAnnotation.AutowireProcessElementAnnotation.AutowireProcessElementAnnotation. java:585) org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.org.spring.framework) factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCap ableBeanFactory.java:1264) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapable3BeanFactory.java.org.4spring beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) org.springBeanframework.beans.factory.support.GetAbstractBeanFactory.do (AbstractBeanFactory.java:302) org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) org.springframework .context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866) org.springfra mework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:668) org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:第634话FrameworkServlet.java:494) org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:138) javax.servlet.GenericServlet.init(GenericServlet.java:158) org.apache.catalina.authenticator.AuthenticatorBase.invoke( AuthenticatorBase.java:490) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java :668) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight) .java:66) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:770) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415) org.apache.tomcat .util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) org .apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Thread.java:748) 注意服务器日志中提供了根本原因的完整堆栈跟踪.

Answer 1

貌似依赖注入框架无法注入某个bean

com.telusko.tusk.dao.FeedbackDao

这个类是否相应地进行了注释，例如使用@EJB 或@Component（如果您使用Spring）？