我已经环顾了这个问题，但我不知道如何解决它......许多答案都谈到了servlet配置错误，但没有说明如何修复它以及要更改什么。我的卡塔琳娜日志文件如下所示：
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/flowable-modeler]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:980)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1645)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287)
at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:809)
at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1553)
at org.apache.catalina.manager.HTMLManagerServlet.upload(HTMLManagerServlet.java:289)
at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:207)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:136)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:109)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:610)
at org.apache.catalina.valves.RequestFilterValve.process(RequestFilterValve.java:348)
at org.apache.catalina.valves.RemoteAddrValve.invoke(RemoteAddrValve.java:52)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:660)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:798)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'bootstrapper': Unsatisfied dependency expressed through field 'decisionTableService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'flowableDecisionTableService': Unsatisfied dependency expressed through field 'modelRepository'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'modelRepositoryImpl': Unsatisfied dependency expressed through field 'sqlSessionTemplate'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'SqlSessionTemplate' defined in class path resource [org/flowable/ui/modeler/conf/DatabaseConfiguration.class]: Unsatisfied dependency expressed through method 'SqlSessionTemplate' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/flowable/ui/modeler/conf/DatabaseConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.flowable.common.engine.api.FlowableException: couldn't deduct database type
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:584)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:370)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1336)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:572)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
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:759)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:548)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:386)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:157)
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:137)
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:91)
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:172)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5225)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 48 more
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'flowableDecisionTableService': Unsatisfied dependency expressed through field 'modelRepository'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'modelRepositoryImpl': Unsatisfied dependency expressed through field 'sqlSessionTemplate'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'SqlSessionTemplate' defined in class path resource [org/flowable/ui/modeler/conf/DatabaseConfiguration.class]: Unsatisfied dependency expressed through method 'SqlSessionTemplate' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/flowable/ui/modeler/conf/DatabaseConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.flowable.common.engine.api.FlowableException: couldn't deduct database type
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:584)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:370)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1336)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:572)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1135)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:581)
... 70 more
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'modelRepositoryImpl': Unsatisfied dependency expressed through field 'sqlSessionTemplate'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'SqlSessionTemplate' defined in class path resource [org/flowable/ui/modeler/conf/DatabaseConfiguration.class]: Unsatisfied dependency expressed through method 'SqlSessionTemplate' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/flowable/ui/modeler/conf/DatabaseConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.flowable.common.engine.api.FlowableException: couldn't deduct database type
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:584)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:370)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1336)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:572)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1135)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:581)
... 83 more
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'SqlSessionTemplate' defined in class path resource [org/flowable/ui/modeler/conf/DatabaseConfiguration.class]: Unsatisfied dependency expressed through method 'SqlSessionTemplate' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/flowable/ui/modeler/conf/DatabaseConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.flowable.common.engine.api.FlowableException: couldn't deduct database type
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:733)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:475)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1246)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1135)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:581)
... 96 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/flowable/ui/modeler/conf/DatabaseConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.flowable.common.engine.api.FlowableException: couldn't deduct database type
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:591)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1246)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
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.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1135)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:819)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:725)
... 109 more
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.flowable.common.engine.api.FlowableException: couldn't deduct database type
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:583)
... 122 more
Caused by: org.flowable.common.engine.api.FlowableException: couldn't deduct database type
at org.flowable.ui.modeler.conf.DatabaseConfiguration.sqlSessionFactory(DatabaseConfiguration.java:105)
at org.flowable.ui.modeler.conf.DatabaseConfiguration$$EnhancerBySpringCGLIB$$32055d85.CGLIB$sqlSessionFactory$3(<generated>)
at org.flowable.ui.modeler.conf.DatabaseConfiguration$$EnhancerBySpringCGLIB$$32055d85$$FastClassBySpringCGLIB$$ad2f42a2.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:365)
at org.flowable.ui.modeler.conf.DatabaseConfiguration$$EnhancerBySpringCGLIB$$32055d85.sqlSessionFactory(<generated>)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
... 123 more
08-Apr-2019 10：59：09.745 严重 [http-nio-8089-exec-22] org.apache.catalina.startup.HostConfig.deployWAR 部署 web 时出错 应用程序存档 [C：\Users\Marina\Downloads\apache-tomcat-8.5.39\webapps\flowable-modeler.war] java.lang.IllegalStateException： ContainerBase.addChild： start： org.apache.catalina.Lifecycle Exception： 无法启动组件 [标准引擎[卡塔琳娜]。标准主机[本地主机]。StandardContext[/flowable-modeler]] 在 org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java：758) 在 org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java：730) 在 org.apache.catalina.core.StandardHost.addChild(StandardHost.java：734) 在 org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java：980) 在 org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java：502) at org.apache.catalina.startup.HostConfig.check(HostConfig.java：1645) 在 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native 方法)在 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java：62) 在 java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java：43) at java.base/java.lang.reflect.Method.invoke(Method.java：566) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java：287) 在 java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java：809) 在 java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java：801) 在 org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java：1553) 在 org.apache.catalina.manager.HTMLManagerServlet.upload(HTMLManagerServlet.java：289) 在 org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java：207) at javax.servlet.http.HttpServlet.service(HttpServlet.java：661) at javax.servlet.http.HttpServlet.service(HttpServlet.java：742) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java：231) 在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java：166) 在 org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java：136) 在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java：193) 在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java：166) 在 org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java：52) 在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java：193) 在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java：166) 在 org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java：109) 在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java：193) 在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java：166) 在 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java：199) 在 org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java：96) 在 org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java：610) 在 org.apache.catalina.valves.RequestFilterValve.process(RequestFilterValve.java：348) 在 org.apache.catalina.valves.RemoteAddrValve.invoke(RemoteAddrValve.java：52) 在 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java：137) 在 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java：81) 在 org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java：660) 在 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java：87) 在 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java：343) 在 org.apache.coyote.http11.Http11Processor.service(Http11Processor.java：798) 在 org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java：66) 在 org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java：806) 在 org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java：1498) 在 org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java：49) 在 java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java：1128) 在 java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java：628) 在org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java：61) at java.base/java.lang.Thread.run(Thread.java：834)
在此之后，我有一系列此类警告：
08-Apr-2019 10:56:07.494 WARNING [http-nio-8089-exec-12] org.apache.catalina.webresources.Cache.getResource Unable to add the resource at [/WEB-INF/classes/application-default.properties] to the cache for web application [/flowable-modeler] because there was insufficient free space available after evicting expired cache entries - consider increasing the maximum size of the cache
08-Apr-2019 10:56:07.497 WARNING [http-nio-8089-exec-12] org.apache.catalina.webresources.Cache.getResource Unable to add the resource at [/WEB-INF/classes/application-default.xml] to the cache for web application [/flowable-modeler] because there was insufficient free space available after evicting expired cache entries - consider increasing the maximum size of the cache
08-Apr-2019 10:56:07.499 WARNING [http-nio-8089-exec-12] org.apache.catalina.webresources.Cache.getResource Unable to add the resource at [/WEB-INF/classes/application-default.xml] to the cache for web application [/flowable-modeler] because there was insufficient free space available after evicting expired cache entries - consider increasing the maximum size of the cache
08-Apr-2019 10:56:07.500 WARNING [http-nio-8089-exec-12] org.apache.catalina.webresources.Cache.getResource Unable to add the resource at [/WEB-INF/classes/application-default.xml] to the cache for web application [/flowable-modeler] because there was insufficient free space available after evicting expired cache entries - consider increasing the maximum size of the cache
我必须更改什么？
始终查看堆栈跟踪的底部以找到根本原因。在您的情况下，这是以下例外。它指向某个数据源连接，并在初始化时确定数据库类型。您可能需要检查配置中的数据库连接属性。
由以下原因引起：org.flowable.common.engine.api.FlowableException：无法推断数据库类型 at org.flowable.ui.modeler.conf.DatabaseConfiguration.sqlSessionFactory(DatabaseConfiguration.java：105) at org.flowable.ui.modeler.conf.DatabaseConfiguration$$EnhancerBySpringCGLIB$$32055d85.CGLIB$sqlSessionFactory$3() at org.flowable.ui.modeler.conf.DatabaseConfiguration$$EnhancerBySpringCGLIB$$32055d85$$FastClassBySpringCGLIB$$ad 2f42a2.invoke() at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java：228) at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java：365) at org.flowable.ui.modeler.conf.DatabaseConfiguration$$EnhancerBySpringCGLIB$$32055d85.sqlSessionFactory()