ERROR DefaultDispatcherErrorHandler:42 - Exception occurred during processing request: null

报错如下:

七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Server version:        Apache Tomcat/9.0.13
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Server built:          Nov 2 2018 14:27:55 UTC
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Server number:         9.0.13.0
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: OS Name:               Windows 10
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: OS Version:            10.0
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Architecture:          amd64
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Java Home:             D:\Program Files\MyEclipse 2017 CI\binary\com.sun.java.jdk8.win32.x86_64_1.8.0.v112\jre
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: JVM Version:           1.8.0_112-b15
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: JVM Vendor:            Oracle Corporation
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: CATALINA_BASE:         D:\Program Files\tomcat
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: CATALINA_HOME:         D:\Program Files\tomcat
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Dcatalina.base=D:\Program Files\tomcat
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Dcatalina.home=D:\Program Files\tomcat
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Dwtp.deploy=D:\Program Files\tomcat\webapps
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Djava.endorsed.dirs=D:\Program Files\tomcat\endorsed
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Djava.library.path=D:\Program Files\MyEclipse 2017 CI\binary\com.sun.java.jdk8.win32.x86_64_1.8.0.v112\bin;D:\Program Files\tomcat\bin
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Dfile.encoding=UTF-8
七月 05, 2019 8:50:13 下午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: Loaded APR based Apache Tomcat Native library [1.2.18] using APR version [1.6.5].
七月 05, 2019 8:50:13 下午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
七月 05, 2019 8:50:13 下午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true]
七月 05, 2019 8:50:13 下午 org.apache.catalina.core.AprLifecycleListener initializeSSL
信息: OpenSSL successfully initialized [OpenSSL 1.1.1  11 Sep 2018]
七月 05, 2019 8:50:13 下午 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler ["http-nio-8080"]
七月 05, 2019 8:50:13 下午 org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
信息: Using a shared selector for servlet write/read
七月 05, 2019 8:50:13 下午 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler ["ajp-nio-8009"]
七月 05, 2019 8:50:13 下午 org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
信息: Using a shared selector for servlet write/read
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 1138 ms
七月 05, 2019 8:50:13 下午 org.apache.catalina.core.StandardService startInternal
信息: Starting service [Catalina]
七月 05, 2019 8:50:13 下午 org.apache.catalina.core.StandardEngine startInternal
信息: Starting Servlet Engine: Apache Tomcat/9.0.13
七月 05, 2019 8:50:13 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory [D:\Program Files\tomcat\webapps\docs]
七月 05, 2019 8:50:14 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory [D:\Program Files\tomcat\webapps\docs] has finished in [395] ms
七月 05, 2019 8:50:14 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory [D:\Program Files\tomcat\webapps\ERP]
七月 05, 2019 8:50:18 下午 org.apache.catalina.core.ApplicationContext log
信息: No Spring WebApplicationInitializer types detected on classpath
七月 05, 2019 8:50:18 下午 org.apache.jasper.servlet.TldScanner scanJars
信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
七月 05, 2019 8:50:18 下午 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring root WebApplicationContext
20:50:18,636  INFO ContextLoader:307 - Root WebApplicationContext: initialization started
20:50:18,881  INFO XmlWebApplicationContext:578 - Refreshing Root WebApplicationContext: startup date [Fri Jul 05 20:50:18 CST 2019]; root of context hierarchy
20:50:19,008  INFO XmlBeanDefinitionReader:317 - Loading XML bean definitions from class path resource [applicationContext.xml]
20:50:19,986  INFO PropertySourcesPlaceholderConfigurer:172 - Loading properties file from class path resource [jdbc.properties]
20:50:20,193  INFO MLog:92 - MLog clients using log4j logging.
20:50:20,282  INFO C3P0Registry:216 - Initializing c3p0-0.9.2.1 [built 20-March-2013 10:47:27 +0000; debug? true; trace: 10]
ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only errors to the console.
20:50:23,605  INFO AbstractPoolBackedDataSource:522 - Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3, acquireRetryAttempts -> 30, acquireRetryDelay -> 1000, autoCommitOnClose -> false, automaticTestTable -> null, breakAfterAcquireFailure -> false, checkoutTimeout -> 0, connectionCustomizerClassName -> null, connectionTesterClassName -> com.mchange.v2.c3p0.impl.DefaultConnectionTester, dataSourceName -> 1hge1dda31hvnxerppg2vi|6d4f266, debugUnreturnedConnectionStackTraces -> false, description -> null, driverClass -> oracle.jdbc.driver.OracleDriver, factoryClassLocation -> null, forceIgnoreUnresolvedTransactions -> false, identityToken -> 1hge1dda31hvnxerppg2vi|6d4f266, idleConnectionTestPeriod -> 0, initialPoolSize -> 3, jdbcUrl -> jdbc:oracle:thin:@127.0.0.1:1521:ORCL, maxAdministrativeTaskTime -> 0, maxConnectionAge -> 0, maxIdleTime -> 0, maxIdleTimeExcessConnections -> 0, maxPoolSize -> 15, maxStatements -> 0, maxStatementsPerConnection -> 0, minPoolSize -> 3, numHelperThreads -> 3, preferredTestQuery -> null, properties -> {user=******, password=******}, propertyCycle -> 0, statementCacheNumDeferredCloseThreads -> 0, testConnectionOnCheckin -> false, testConnectionOnCheckout -> false, unreturnedConnectionTimeout -> 0, userOverrides -> {}, usesTraditionalReflectiveProxies -> false ]
20:50:27,377  INFO HibernateTransactionManager:357 - Using DataSource [com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3, acquireRetryAttempts -> 30, acquireRetryDelay -> 1000, autoCommitOnClose -> false, automaticTestTable -> null, breakAfterAcquireFailure -> false, checkoutTimeout -> 0, connectionCustomizerClassName -> null, connectionTesterClassName -> com.mchange.v2.c3p0.impl.DefaultConnectionTester, dataSourceName -> 1hge1dda31hvnxerppg2vi|6d4f266, debugUnreturnedConnectionStackTraces -> false, description -> null, driverClass -> oracle.jdbc.driver.OracleDriver, factoryClassLocation -> null, forceIgnoreUnresolvedTransactions -> false, identityToken -> 1hge1dda31hvnxerppg2vi|6d4f266, idleConnectionTestPeriod -> 0, initialPoolSize -> 3, jdbcUrl -> jdbc:oracle:thin:@127.0.0.1:1521:ORCL, maxAdministrativeTaskTime -> 0, maxConnectionAge -> 0, maxIdleTime -> 0, maxIdleTimeExcessConnections -> 0, maxPoolSize -> 15, maxStatements -> 0, maxStatementsPerConnection -> 0, minPoolSize -> 3, numHelperThreads -> 3, preferredTestQuery -> null, properties -> {user=******, password=******}, propertyCycle -> 0, statementCacheNumDeferredCloseThreads -> 0, testConnectionOnCheckin -> false, testConnectionOnCheckout -> false, unreturnedConnectionTimeout -> 0, userOverrides -> {}, usesTraditionalReflectiveProxies -> false ]] of Hibernate SessionFactory for HibernateTransactionManager
20:50:27,486  INFO ContextLoader:347 - Root WebApplicationContext: initialization completed in 8845 ms
20:50:28,139  INFO XmlConfigurationProvider:46 - Parsing configuration file [struts-default.xml]
20:50:28,335  INFO XmlConfigurationProvider:46 - Parsing configuration file [struts-plugin.xml]
20:50:28,350  INFO XmlConfigurationProvider:46 - Parsing configuration file [struts.xml]
20:50:28,356  INFO AbstractBeanSelectionProvider:46 - Choosing bean (spring) for (com.opensymphony.xwork2.ObjectFactory)
20:50:28,356  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.factory.ActionFactory)
20:50:28,357  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.factory.ResultFactory)
20:50:28,357  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.factory.ConverterFactory)
20:50:28,357  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.factory.InterceptorFactory)
20:50:28,358  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.factory.ValidatorFactory)
20:50:28,358  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.factory.UnknownHandlerFactory)
20:50:28,359  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.FileManagerFactory)
20:50:28,359  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.XWorkConverter)
20:50:28,359  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.CollectionConverter)
20:50:28,359  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.ArrayConverter)
20:50:28,359  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.DateConverter)
20:50:28,360  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.NumberConverter)
20:50:28,360  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.StringConverter)
20:50:28,360  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ConversionPropertiesProcessor)
20:50:28,361  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ConversionFileProcessor)
20:50:28,361  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ConversionAnnotationProcessor)
20:50:28,361  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.conversion.TypeConverterCreator)
20:50:28,362  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.conversion.TypeConverterHolder)
20:50:28,362  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.TextProvider)
20:50:28,362  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.LocaleProvider)
20:50:28,362  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.ActionProxyFactory)
20:50:28,363  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ObjectTypeDeterminer)
20:50:28,363  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (org.apache.struts2.dispatcher.mapper.ActionMapper)
20:50:28,363  INFO AbstractBeanSelectionProvider:46 - Choosing bean (jakarta) for (org.apache.struts2.dispatcher.multipart.MultiPartRequest)
20:50:28,363  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (org.apache.struts2.views.freemarker.FreemarkerManager)
20:50:28,365  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (org.apache.struts2.components.UrlRenderer)
20:50:28,366  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.validator.ActionValidatorManager)
20:50:28,366  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.util.ValueStackFactory)
20:50:28,366  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.util.reflection.ReflectionProvider)
20:50:28,366  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.util.reflection.ReflectionContextFactory)
20:50:28,367  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.util.PatternMatcher)
20:50:28,367  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (org.apache.struts2.util.ContentTypeMatcher)
20:50:28,368  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (org.apache.struts2.dispatcher.StaticContentLoader)
20:50:28,368  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.UnknownHandlerManager)
20:50:28,368  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (org.apache.struts2.views.util.UrlHelper)
20:50:28,368  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.util.TextParser)
20:50:28,368  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (org.apache.struts2.dispatcher.DispatcherErrorHandler)
20:50:28,368  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.security.ExcludedPatternsChecker)
20:50:28,368  INFO AbstractBeanSelectionProvider:46 - Choosing bean (struts) for (com.opensymphony.xwork2.security.AcceptedPatternsChecker)
20:50:28,397  INFO StrutsSpringObjectFactory:46 - Initializing Struts-Spring integration...
20:50:28,398  INFO SpringObjectFactory:46 - Setting autowire strategy to name
20:50:28,398  INFO StrutsSpringObjectFactory:46 - ... initialized Struts-Spring integration successfully
七月 05, 2019 8:50:29 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory [D:\Program Files\tomcat\webapps\ERP] has finished in [15,291] ms
七月 05, 2019 8:50:29 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory [D:\Program Files\tomcat\webapps\examples]
七月 05, 2019 8:50:30 下午 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
七月 05, 2019 8:50:30 下午 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
七月 05, 2019 8:50:30 下午 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: attributeAdded('StockTicker', 'async.Stockticker@105e9fef')
七月 05, 2019 8:50:30 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory [D:\Program Files\tomcat\webapps\examples] has finished in [660] ms
七月 05, 2019 8:50:30 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory [D:\Program Files\tomcat\webapps\host-manager]
七月 05, 2019 8:50:30 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory [D:\Program Files\tomcat\webapps\host-manager] has finished in [95] ms
七月 05, 2019 8:50:30 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory [D:\Program Files\tomcat\webapps\ROOT]
七月 05, 2019 8:50:30 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory [D:\Program Files\tomcat\webapps\ROOT] has finished in [68] ms
七月 05, 2019 8:50:30 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory [D:\Program Files\tomcat\webapps\Shop_war]
七月 05, 2019 8:50:30 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory [D:\Program Files\tomcat\webapps\Shop_war] has finished in [107] ms
七月 05, 2019 8:50:30 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["http-nio-8080"]
七月 05, 2019 8:50:30 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["ajp-nio-8009"]
七月 05, 2019 8:50:30 下午 org.apache.catalina.startup.Catalina start
信息: Server startup in 16755 ms
入库事件触发
20:53:09,416 ERROR DefaultDispatcherErrorHandler:42 - Exception occurred during processing request: null
java.lang.NullPointerException
    at com.erp.service.impl.GoodsServiceImpl.findById(GoodsServiceImpl.java:55)
    at com.erp.action.InputAction.insert(InputAction.java:57)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:870)
    at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1293)
    at ognl.ObjectMethodAccessor.callMethod(ObjectMethodAccessor.java:68)
    at com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethodWithDebugInfo(XWorkMethodAccessor.java:117)
    at com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethod(XWorkMethodAccessor.java:108)
    at ognl.OgnlRuntime.callMethod(OgnlRuntime.java:1369)
    at ognl.ASTMethod.getValueBody(ASTMethod.java:90)
    at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)
    at ognl.SimpleNode.getValue(SimpleNode.java:258)
    at ognl.Ognl.getValue(Ognl.java:494)
    at ognl.Ognl.getValue(Ognl.java:458)
    at com.opensymphony.xwork2.ognl.OgnlUtil$2.execute(OgnlUtil.java:309)
    at com.opensymphony.xwork2.ognl.OgnlUtil.compileAndExecute(OgnlUtil.java:340)
    at com.opensymphony.xwork2.ognl.OgnlUtil.getValue(OgnlUtil.java:307)
    at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:423)
    at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:287)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:250)
    at org.apache.struts2.interceptor.DeprecationInterceptor.intercept(DeprecationInterceptor.java:41)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:167)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)
    at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:76)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:229)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:229)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at org.apache.struts2.interceptor.DateTextFieldInterceptor.intercept(DateTextFieldInterceptor.java:125)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:253)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:139)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)
    at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)
    at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:564)
    at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:81)
    at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.orm.hibernate5.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:151)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    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:490)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    at org.apache.coyot
e.http11.Http11Processor.service(Http11Processor.java:408)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)
 

 

由于在Action中使用Service,但是没有注入,

<bean id="inputAction" class="com.erp.action.InputAction">
        <property name="inputService" ref="inputService"/>
        <property name="goodsService" ref="goodsService"/>
    </bean>

所以需要注入,并在action类中添加goodsService对应的get和set方法。

### HTTP 500 Internal Server Error in `/user/login` Path Solution An HTTP 500 Internal Server Error indicates that the server encountered an unexpected condition which prevented it from fulfilling the request. This can be caused by a variety of issues, including application errors, misconfigurations, or resource unavailability. For the specific case of encountering this error on the `/user/login` path: #### Application Code Review The first step involves reviewing the code responsible for handling login requests to ensure there are no logical errors or exceptions being thrown without proper handling[^1]. Common causes include null pointer dereferences, database connection failures, and incorrect API calls. #### Configuration Verification Verify all configurations related to user authentication services such as OAuth providers, session management settings, etc., ensuring they match expected values. Misconfigured parameters could lead to internal processing errors when attempting to authenticate users[^2]. #### Log Analysis Examine logs generated by both web servers (like Apache/Nginx) and application frameworks used within your project setup. Look specifically at entries logged around the time frame corresponding with failed attempts accessing `/user/login`. Logs often contain stack traces pointing directly towards what went wrong during execution flow[^3]. #### Dependency Checks Ensure dependencies required by the application function correctly. For instance, if using external APIs or databases, confirm these resources remain accessible and responsive under current network conditions. Unreachable endpoints might cause timeouts resulting in 500 responses. ```python try: # Attempt some operation potentially causing exception except Exception as e: logger.error(f"Error occurred while trying to log in: {e}") finally: # Cleanup actions here ```
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