HTTP Status 500 - Servlet.init() for servlet appServlet threw exception

type Exception report

message Servlet.init() for servlet appServlet threw exception

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet.init() for servlet appServlet threw exception

org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)

org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)

org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)

org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:442)

org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1082)

org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:623)

org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)

java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

java.lang.Thread.run(Unknown Source)

root cause

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'reservationController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.dt.dao.ReservationDao com.dt.controller.ReservationController.daoR; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.dt.dao.ReservationDao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:287)

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1106)

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)

org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)

org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)

org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)

org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)

org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)

org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)

org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)

org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:631)

org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:588)

org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:645)

org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:508)

org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:449)

org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:133)

javax.servlet.GenericServlet.init(GenericServlet.java:158)