通配符的匹配很全面, 但无法找到元素 ‘context:component-scan’ 的声明

最新推荐文章于 2023-02-19 14:54:25 发布

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最新推荐文章于 2023-02-19 14:54:25 发布

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本文链接：https://blog.youkuaiyun.com/weixin_42957571/article/details/120639006

在尝试启动SpringMVC应用程序时遇到Servlet初始化异常，具体为`javax.servlet.ServletException`。问题根源在于`springMVC.xml`配置文件的第7行存在XML语法错误，`cvc-complex-type.2.4.c`指出元素`context:component-scan`的声明未找到。解决方案是确保引入了完整的Spring命名空间定义。建议检查并更新XML配置文件，添加缺失的命名空间引用。

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例外情况

javax.servlet.ServletException: Servlet[SpringMVC]的Servlet.init（）引发异常
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:698)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:364)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:624)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
org.apache.coyote.AbstractProtocol $C o n n e c t i o n H a n d l e r . p r o c e s s (A b s t r a c t P r o t o c o l . j a v a : 831) o r g . a p a c h e . t o m c a t . u t i l . n e t . N i o E n d p o i n t$ SocketProcessor.doRun(NioEndpoint.java:1650)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
org.apache.tomcat.util.threads.ThreadPoolExecutor $W o r k e r . r u n (T h r e a d P o o l E x e c u t o r . j a v a : 659) o r g . a p a c h e . t o m c a t . u t i l . t h r e a d s . T a s k T h r e a d$ WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:748)
根本原因。

org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 7 in XML document from class path resource [springMVC.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 7; columnNumber: 71; cvc-complex-type.2.4.c: 通配符的匹配很全面, 但无法找到元素 ‘context:component-scan’ 的声明。
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:402)
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:338)
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:310)
org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:188)
org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:224)
org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:195)
org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125)
org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94)
org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130)
org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:671)
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:553)
org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:702)
org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:668)
org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:716)
org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:591)
org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:530)
org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:170)
javax.servlet.GenericServlet.init(GenericServlet.java:158)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:698)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:364)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:624)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
org.apache.coyote.AbstractProtocol $C o n n e c t i o n H a n d l e r . p r o c e s s (A b s t r a c t P r o t o c o l . j a v a : 831) o r g . a p a c h e . t o m c a t . u t i l . n e t . N i o E n d p o i n t$ SocketProcessor.doRun(NioEndpoint.java:1650)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
org.apache.tomcat.util.threads.ThreadPoolExecutor $W o r k e r . r u n (T h r e a d P o o l E x e c u t o r . j a v a : 659) o r g . a p a c h e . t o m c a t . u t i l . t h r e a d s . T a s k T h r e a d$ WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:748)
根本原因。

org.xml.sax.SAXParseException; lineNumber: 7; columnNumber: 71; cvc-complex-type.2.4.c: 通配符的匹配很全面, 但无法找到元素 ‘context:component-scan’ 的声明。
com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:204)
com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:135)
com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:396)
com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:327)
com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:284)
com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator $X S I E r r o r R e p o r t e r . r e p o r t E r r o r (X M L S c h e m a V a l i d a t o r . j a v a : 498) c o m . s u n . o r g . a p a c h e . x e r c e s . i n t e r n a l . i m p l . x s . X M L S c h e m a V a l i d a t o r . r e p o r t S c h e m a E r r o r (X M L S c h e m a V a l i d a t o r . j a v a : 3574) c o m . s u n . o r g . a p a c h e . x e r c e s . i n t e r n a l . i m p l . x s . X M L S c h e m a V a l i d a t o r . h a n d l e S t a r t E l e m e n t (X M L S c h e m a V a l i d a t o r . j a v a : 2130) c o m . s u n . o r g . a p a c h e . x e r c e s . i n t e r n a l . i m p l . x s . X M L S c h e m a V a l i d a t o r . s t a r t E l e m e n t (X M L S c h e m a V a l i d a t o r . j a v a : 816) c o m . s u n . o r g . a p a c h e . x e r c e s . i n t e r n a l . i m p l . X M L N S D o c u m e n t S c a n n e r I m p l . s c a n S t a r t E l e m e n t (X M L N S D o c u m e n t S c a n n e r I m p l . j a v a : 375) c o m . s u n . o r g . a p a c h e . x e r c e s . i n t e r n a l . i m p l . X M L D o c u m e n t F r a g m e n t S c a n n e r I m p l$ FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2786)
com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:605)
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:113)
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:507)
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:867)
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:796)
com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:142)
com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:247)
com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:339)
org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:77)
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadDocument(XmlBeanDefinitionReader.java:432)
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:390)
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:338)
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:310)
org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:188)
org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:224)
org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:195)
org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125)
org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94)
org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130)
org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:671)
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:553)
org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:702)
org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:668)
org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:716)
org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:591)
org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:530)
org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:170)
javax.servlet.GenericServlet.init(GenericServlet.java:158)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:698)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:364)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:624)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
org.apache.coyote.AbstractProtocol $C o n n e c t i o n H a n d l e r . p r o c e s s (A b s t r a c t P r o t o c o l . j a v a : 831) o r g . a p a c h e . t o m c a t . u t i l . n e t . N i o E n d p o i n t$ SocketProcessor.doRun(NioEndpoint.java:1650)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
org.apache.tomcat.util.threads.ThreadPoolExecutor $W o r k e r . r u n (T h r e a d P o o l E x e c u t o r . j a v a : 659) o r g . a p a c h e . t o m c a t . u t i l . t h r e a d s . T a s k T h r e a d$ WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:748)
):注意主要问题的全部 stack 信息可以在 server logs 里查看

Apache Tomcat/8.5.71

原因:spring.xml文件中的命名空间依赖型没有声明完整

解决:复制完整的命名空间

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-4.2.xsd">