我们还可以添加些什么来解决此错误[关闭]

HTTP状态500 –内部服务器错误 类型异常报告

Servlet [spring]的消息Servlet.init()抛出异常

描述服务器遇到意外情况,阻止其满足请求。

例外

javax.servlet.ServletException:Servlet [spring]的Servlet.init()抛出异常     org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)     org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)     org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)     org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)     org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367)     org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)     org.apache.coyote.AbstractProtocol $ ConnectionHandler.process(AbstractProtocol.java:860)     org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun(NioEndpoint.java:1598)     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.UnsatisfiedDependencyException:创建名称为'studentEnrollmentController'的bean时出错:通过字段'studentDao'表示的不满足的依赖关系;嵌套的异常是org.springframework.beans.factory.BeanCreationException:创建在ServletContext资源[/WEB-INF/spring-servlet.xml]中定义的名称为dao的bean时出错:设置bean属性时无法解析对bean jt的引用'模板';嵌套的异常是org.springframework.beans.factory.BeanCreationException:创建在ServletContext资源[/WEB-INF/spring-servlet.xml]中定义的名称为'jt'的bean时出错:设置bean属性时无法解析对bean'ds'的引用'数据源';嵌套的异常是org.springframework.beans.factory.BeanCreationException:创建在ServletContext资源[/WEB-INF/spring-servlet.xml]中定义的名称为“ ds”的bean时出错:设置属性值时出错;嵌套的异常是org.springframework.beans.PropertyBatchUpdateException;嵌套的PropertyAccessExceptions(1)是: PropertyAccessException 1:org.springframework.beans.MethodInvocationException:属性'driverClassName'抛出异常;嵌套的异常是java.lang.IllegalStateException:无法加载JDBC驱动程序类[org.h2.Driver]     org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor $ AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596)     org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)     org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)     org.springframework.beans.factory.support.AbstractBeanFactory.lambda $ doGetBean $ 0(AbstractBeanFactory.java:320)     org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)     org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)     org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)     org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:845)     org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877)     org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)     org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:701)     org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:667)     org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:715)     org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:590)     org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:529)     org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:169)     javax.servlet.GenericServlet.init(GenericServlet.java:158)     org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)     org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)     org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)     org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)     org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367)     org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)     org.apache.coyote.AbstractProtocol $ ConnectionHandler.process(AbstractProtocol.java:860)     org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun(NioEndpoint.java:1598)     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.BeanCreationException:创建在ServletContext资源[/WEB-INF/spring-servlet.xml]中定义的名称为dao的bean时出错:设置bean属性“ template”时无法解析对bean“ jt”的引用;嵌套的异常是org.springframework.beans.factory.BeanCreationException:创建在ServletContext资源[/WEB-INF/spring-servlet.xml]中定义的名称为'jt'的bean时出错:设置bean属性时无法解析对bean'ds'的引用'数据源';嵌套的异常是org.springframework.beans.factory.BeanCreationException:创建在ServletContext资源[/WEB-INF/spring-servlet.xml]中定义的名称为“ ds”的bean时出错:设置属性值时出错;嵌套的异常是org.springframework.beans.PropertyBatchUpdateException;嵌套的PropertyAccessExceptions(1)是: PropertyAccessException 1:org.springframework.beans.MethodInvocationException:属性'driverClassName'抛出异常;嵌套的异常是java.lang.IllegalStateException:无法加载JDBC驱动程序类[org.h2.Driver]     org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:314)     org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:110)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1681)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1433)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)     org.springframework.beans.factory.support.AbstractBeanFactory.lambda $ doGetBean $ 0(AbstractBeanFactory.java:320)     org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)     org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)     org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)     org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277)     org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1251)     org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1171)     org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor $ AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593)     org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)     org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)     org.springframework.beans.factory.support.AbstractBeanFactory.lambda $ doGetBean $ 0(AbstractBeanFactory.java:320)     org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)     org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)     org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)     org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:845)     org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877)     org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)     org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:701)     org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:667)     org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:715)     org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:590)     org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:529)     org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:169)     javax.servlet.GenericServlet.init(GenericServlet.java:158)     org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)     org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)     org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)     org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)     org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367)     org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)     org.apache.coyote.AbstractProtocol $ ConnectionHandler.process(AbstractProtocol.java:860)     org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun(NioEndpoint.java:1598)     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.BeanCreationException:创建在ServletContext资源[/WEB-INF/spring-servlet.xml]中定义的名称为'jt'的bean时出错:设置bean属性'dataSource'时无法解析对bean'ds'的引用;嵌套的异常是org.springframework.beans.factory.BeanCreationException:创建在ServletContext资源[/WEB-INF/spring-servlet.xml]中定义的名称为“ ds”的bean时出错:设置属性值时出错;嵌套的异常是org.springframework.beans.PropertyBatchUpdateException;嵌套的PropertyAccessExceptions(1)是: PropertyAccessException 1:org.springframework.beans.MethodInvocationException:属性'driverClassName'抛出异常;嵌套的异常是java.lang.IllegalStateException:无法加载JDBC驱动程序类[org.h2.Driver]     org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:314)     org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:110)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1681)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1433)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)     org.springframework.beans.factory.support.AbstractBeanFactory.lambda $ doGetBean $ 0(AbstractBeanFactory.java:320)     org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)     org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)     org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)     org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:303)     org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:110)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1681)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1433)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)     org.springframework.beans.factory.support.AbstractBeanFactory.lambda $ doGetBean $ 0(AbstractBeanFactory.java:320)     org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)     org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)     org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)     org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277)     org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1251)     org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1171)     org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor $ AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593)     org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)     org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)     org.springframework.beans.factory.support.AbstractBeanFactory.lambda $ doGetBean $ 0(AbstractBeanFactory.java:320)     org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)     org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)     org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)     org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:845)     org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877)     org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)     org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:701)     org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:667)     org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:715)     org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:590)     org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:529)     org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:169)     javax.servlet.GenericServlet.init(GenericServlet.java:158)     org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)     org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)     org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)     org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)     org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367)     org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)     org.apache.coyote.AbstractProtocol $ ConnectionHandler.process(AbstractProtocol.java:860)     org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun(NioEndpoint.java:1598)     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.BeanCreationException:创建在ServletContext资源[/WEB-INF/spring-servlet.xml]中定义的名称为“ ds”的bean时出错:设置属性值时出错;嵌套的异常是org.springframework.beans.PropertyBatchUpdateException;嵌套的PropertyAccessExceptions(1)是: PropertyAccessException 1:org.springframework.beans.MethodInvocationException:属性'driverClassName'抛出异常;嵌套的异常是java.lang.IllegalStateException:无法加载JDBC驱动程序类[org.h2.Driver]     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1718)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1433)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)     org.springframework.beans.factory.support.AbstractBeanFactory.lambda $ doGetBean $ 0(AbstractBeanFactory.java:320)     org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)     org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)     org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)     org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:303)     org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:110)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1681)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1433)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)     org.springframework.beans.factory.support.AbstractBeanFactory.lambda $ doGetBean $ 0(AbstractBeanFactory.java:320)     org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)     org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)     org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)     org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:303)     org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:110)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1681)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1433)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)     org.springframework.beans.factory.support.AbstractBeanFactory.lambda $ doGetBean $ 0(AbstractBeanFactory.java:320)     org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)     org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)     org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)     org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277)     org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1251)     org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1171)     org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor $ AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593)     org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)     org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)     org.springframework.beans.factory.support.AbstractBeanFactory.lambda $ doGetBean $ 0(AbstractBeanFactory.java:320)     org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)     org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)     org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)     org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:845)     org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877)     org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)     org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:701)     org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:667)     org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:715)     org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:590)     org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:529)     org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:169)     javax.servlet.GenericServlet.init(GenericServlet.java:158)     org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)     org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)     org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)     org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)     org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367)     org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)     org.apache.coyote.AbstractProtocol $ ConnectionHandler.process(AbstractProtocol.java:860)     org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun(NioEndpoint.java:1598)     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)