org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘sqlSessionFactory’ defined in file [D:\apache-tomcat-8.0.22\webapps\xinghe-platform-web\WEB-INF\classes\spring\applicationContext-dao.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: ‘URL [jar:file:/D:/apache-tomcat-8.0.22/webapps/xinghe-platform-web/WEB-INF/lib/xinghe-base-0.0.1-SNAPSHOT.jar!/com/xinghe/edu/auth/model/mapper/AuthChildrenGroupMapper.xml]’; nested exception is org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 3; columnNumber: 39; 文档根元素 “mapper” 必须匹配 DOCTYPE 根 “configuration”。 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1566) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) at org.springframework.beans.factory.support.AbstractBeanFactory 1.getObject(AbstractBeanFactory.java:303)atorg.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)atorg.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)atorg.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)atorg.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:743)atorg.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)atorg.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)atorg.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)atorg.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)atorg.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)atcom.auth.spring.listener.SpringLoaderListener.contextInitialized(SpringLoaderListener.java:24)atorg.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4729)atorg.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5167)atorg.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)atorg.apache.catalina.core.ContainerBase StartChild.call(ContainerBase.java:1409) at org.apache.catalina.core.ContainerBase StartChild.call(ContainerBase.java:1399)atjava.util.concurrent.FutureTask.run(UnknownSource)atjava.util.concurrent.ThreadPoolExecutor.runWorker(UnknownSource)atjava.util.concurrent.ThreadPoolExecutor Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: ‘URL [jar:file:/D:/apache-tomcat-8.0.22/webapps/xinghe-platform-web/WEB-INF/lib/xinghe-base-0.0.1-SNAPSHOT.jar!/com/xinghe/edu/auth/model/mapper/AuthChildrenGroupMapper.xml]’; nested exception is org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 3; columnNumber: 39; 文档根元素 “mapper” 必须匹配 DOCTYPE 根 “configuration”。 at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:468) at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:343) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1625) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1562) … 22 more Caused by: org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 3; columnNumber: 39; 文档根元素 “mapper” 必须匹配 DOCTYPE 根 “configuration”。 at org.apache.ibatis.parsing.XPathParser.createDocument(XPathParser.java:259) at org.apache.ibatis.parsing.XPathParser.(XPathParser.java:125) at org.apache.ibatis.builder.xml.XMLMapperBuilder.(XMLMapperBuilder.java:78) at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:464) … 25 more Caused by: org.xml.sax.SAXParseException; lineNumber: 3; columnNumber: 39; 文档根元素 “mapper” 必须匹配 DOCTYPE 根 “configuration”。 at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source) at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source) at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.rootElementSpecified(Unknown Source) at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.handleStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl ContentDriver.scanRootElementHook(UnknownSource)atcom.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl FragmentContentDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl PrologDriver.next(UnknownSource)atcom.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(UnknownSource)atcom.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(UnknownSource)atcom.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(UnknownSource)atcom.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(UnknownSource)atcom.sun.org.apache.xerces.internal.parsers.XMLParser.parse(UnknownSource)atcom.sun.org.apache.xerces.internal.parsers.DOMParser.parse(UnknownSource)atcom.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(UnknownSource)atorg.apache.ibatis.parsing.XPathParser.createDocument(XPathParser.java:257)…28more14:07:20,853ERRORContextLoader:331−Contextinitializationfailedorg.springframework.beans.factory.BeanCreationException:Errorcreatingbeanwithname‘sqlSessionFactory′definedinfile[D:\apache−tomcat−8.0.22\webapps\xinghe−platform−web\WEB−INF\classes\spring\applicationContext−dao.xml]:Invocationofinitmethodfailed;nestedexceptionisorg.springframework.core.NestedIOException:Failedtoparsemappingresource:‘URL[jar:file:/D:/apache−tomcat−8.0.22/webapps/xinghe−platform−web/WEB−INF/lib/xinghe−base−0.0.1−SNAPSHOT.jar!/com/xinghe/edu/auth/model/mapper/AuthChildrenGroupMapper.xml]′;nestedexceptionisorg.apache.ibatis.builder.BuilderException:Errorcreatingdocumentinstance.Cause:org.xml.sax.SAXParseException;lineNumber:3;columnNumber:39;文档根元素“mapper”必须匹配DOCTYPE根“configuration”。atorg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1566)atorg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)atorg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)atorg.springframework.beans.factory.support.AbstractBeanFactory 1.getObject(AbstractBeanFactory.java:303) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:743) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) at com.auth.spring.listener.SpringLoaderListener.contextInitialized(SpringLoaderListener.java:24) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4729) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5167) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase StartChild.call(ContainerBase.java:1409)atorg.apache.catalina.core.ContainerBase StartChild.call(ContainerBase.java:1399) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor Worker.run(UnknownSource)atjava.lang.Thread.run(UnknownSource)Causedby:org.springframework.core.NestedIOException:Failedtoparsemappingresource:‘URL[jar:file:/D:/apache−tomcat−8.0.22/webapps/xinghe−platform−web/WEB−INF/lib/xinghe−base−0.0.1−SNAPSHOT.jar!/com/xinghe/edu/auth/model/mapper/AuthChildrenGroupMapper.xml]′;nestedexceptionisorg.apache.ibatis.builder.BuilderException:Errorcreatingdocumentinstance.Cause:org.xml.sax.SAXParseException;lineNumber:3;columnNumber:39;文档根元素“mapper”必须匹配DOCTYPE根“configuration”。atorg.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:468)atorg.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:343)atorg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1625)atorg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1562)…22moreCausedby:org.apache.ibatis.builder.BuilderException:Errorcreatingdocumentinstance.Cause:org.xml.sax.SAXParseException;lineNumber:3;columnNumber:39;文档根元素“mapper”必须匹配DOCTYPE根“configuration”。atorg.apache.ibatis.parsing.XPathParser.createDocument(XPathParser.java:259)atorg.apache.ibatis.parsing.XPathParser.(XPathParser.java:125)atorg.apache.ibatis.builder.xml.XMLMapperBuilder.(XMLMapperBuilder.java:78)atorg.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:464)…25moreCausedby:org.xml.sax.SAXParseException;lineNumber:3;columnNumber:39;文档根元素“mapper”必须匹配DOCTYPE根“configuration”。atcom.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(UnknownSource)atcom.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(UnknownSource)atcom.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(UnknownSource)atcom.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(UnknownSource)atcom.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(UnknownSource)atcom.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.rootElementSpecified(UnknownSource)atcom.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.handleStartElement(UnknownSource)atcom.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(UnknownSource)atcom.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(UnknownSource)atcom.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl ContentDriver.scanRootElementHook(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl FragmentContentDriver.next(UnknownSource)atcom.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl PrologDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source) at org.apache.ibatis.parsing.XPathParser.createDocument(XPathParser.java:257) … 28 more 十二月 15, 2015 2:07:20 下午 org.apache.catalina.core.StandardContext listenerStart 严重: Exception sending context initialized event to listener instance of class com.auth.spring.listener.SpringLoaderListener org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘sqlSessionFactory’ defined in file [D:\apache-tomcat-8.0.22\webapps\xinghe-platform-web\WEB-INF\classes\spring\applicationContext-dao.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: ‘URL [jar:file:/D:/apache-tomcat-8.0.22/webapps/xinghe-platform-web/WEB-INF/lib/xinghe-base-0.0.1-SNAPSHOT.jar!/com/xinghe/edu/auth/model/mapper/AuthChildrenGroupMapper.xml]’; nested exception is org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 3; columnNumber: 39; 文档根元素 “mapper” 必须匹配 DOCTYPE 根 “configuration”。 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1566) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) at org.springframework.beans.factory.support.AbstractBeanFactory 1.getObject(AbstractBeanFactory.java:303)atorg.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)atorg.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)atorg.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)atorg.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:743)atorg.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)atorg.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)atorg.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)atorg.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)atorg.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)atcom.auth.spring.listener.SpringLoaderListener.contextInitialized(SpringLoaderListener.java:24)atorg.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4729)atorg.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5167)atorg.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)atorg.apache.catalina.core.ContainerBase StartChild.call(ContainerBase.java:1409) at org.apache.catalina.core.ContainerBase StartChild.call(ContainerBase.java:1399)atjava.util.concurrent.FutureTask.run(UnknownSource)atjava.util.concurrent.ThreadPoolExecutor.runWorker(UnknownSource)atjava.util.concurrent.ThreadPoolExecutor Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: ‘URL [jar:file:/D:/apache-tomcat-8.0.22/webapps/xinghe-platform-web/WEB-INF/lib/xinghe-base-0.0.1-SNAPSHOT.jar!/com/xinghe/edu/auth/model/mapper/AuthChildrenGroupMapper.xml]’; nested exception is org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 3; columnNumber: 39; 文档根元素 “mapper” 必须匹配 DOCTYPE 根 “configuration”。 at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:468) at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:343) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1625) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1562) … 22 more Caused by: org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 3; columnNumber: 39; 文档根元素 “mapper” 必须匹配 DOCTYPE 根 “configuration”。 at org.apache.ibatis.parsing.XPathParser.createDocument(XPathParser.java:259) at org.apache.ibatis.parsing.XPathParser.(XPathParser.java:125) at org.apache.ibatis.builder.xml.XMLMapperBuilder.(XMLMapperBuilder.java:78) at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:464) … 25 more Caused by: org.xml.sax.SAXParseException; lineNumber: 3; columnNumber: 39; 文档根元素 “mapper” 必须匹配 DOCTYPE 根 “configuration”。 at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source) at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source) at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.rootElementSpecified(Unknown Source) at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.handleStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl ContentDriver.scanRootElementHook(UnknownSource)atcom.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl FragmentContentDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source) at org.apache.ibatis.parsing.XPathParser.createDocument(XPathParser.java:257) … 28 more
发生此错误的原因：mybatis的映射文件 *Mapper.xml文件头错误，我是直接从sql-map-config.xml文件中复制过来的，如下：
很明显，DOCTYPE 是 configuration ，而这个文件中的根节点是 mapper，互相不匹配，所以产生了这个错误；
解决办法修改为以下内容：
总结
在写一些代码或配置的时候，经常可能从别的地方复制一个过来改改，这样是比较方便快捷，但如果忘记了改某个位置，就可能产生一些奇奇怪怪的错误！
