Java 异常启动过滤器 struts2 无法加载配置。文档根元素“package”，必须匹配DOCTYPE根“struts”
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时间：2020-08-13 15:03:31 来源:igfitidea点击:
Exception starting filter struts2 Unable to load configuration. Document root element "package", must match DOCTYPE root "struts"
提问by Suneel Chowdary
When I started a Struts2 application in Eclipse I've gotten the exception, please help me on this.
当我在 Eclipse 中启动 Struts2 应用程序时出现异常，请帮助我解决这个问题。
The exception is:
例外是：
Mar 12, 2014 8:46:45 AM org.apache.catalina.core.StandardContext filterStart
SEVERE: Exception starting filter struts2
Unable to load configuration. - file:/D:/IMP/JunoWorjspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/Struts2Starter/WEB-INF/classes/struts.xml:10:52
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:502)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:57)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4001)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4651)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)
at org.apache.catalina.core.StandardService.start(StandardService.java:519)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: Unable to load configuration. - file:/D:/IMP/JunoWorjspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/Struts2Starter/WEB-INF/classes/struts.xml:10:52
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:446)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:490)
... 20 more
Caused by: Unable to load file:/D:/IMP/JunoWorjspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/Struts2Starter/WEB-INF/classes/struts.xml - file:/D:/IMP/JunoWorjspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/Struts2Starter/WEB-INF/classes/struts.xml:10:52
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles(XmlConfigurationProvider.java:1022)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadDocuments(XmlConfigurationProvider.java:165)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.init(XmlConfigurationProvider.java:132)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:225)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
... 22 more
Caused by: Document root element "package", must match DOCTYPE root "struts". - file:/D:/IMP/JunoWorjspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/Struts2Starter/WEB-INF/classes/struts.xml:10:52
at com.opensymphony.xwork2.util.DomHelper.parse(DomHelper.java:119)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles(XmlConfigurationProvider.java:1017)
... 26 more
Caused by: org.xml.sax.SAXParseException: Document root element "package", must match DOCTYPE root "struts".
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195)
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:131)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:384)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:318)
at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.rootElementSpecified(XMLDTDValidator.java:1621)
at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.handleStartElement(XMLDTDValidator.java:1900)
at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(XMLDTDValidator.java:764)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:400)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDriver.scanRootElementHook(XMLNSDocumentScannerImpl.java:626)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3095)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:921)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:807)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:107)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:395)
at com.opensymphony.xwork2.util.DomHelper.parse(DomHelper.java:117)
... 27 more
Mar 12, 2014 8:46:45 AM org.apache.catalina.core.StandardContext start
SEVERE: Error filterStart
Mar 12, 2014 8:46:45 AM org.apache.catalina.core.StandardContext start
SEVERE: Context [/Struts2Starter] startup failed due to previous errors
struts.xmlfile:
struts.xml文件：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<package name="default" extends="struts-default" >
<action name="getTutorial" class="com.suneel.actions.TutorialAction">
<result name="success">/success.jsp</result>
<result name="failure">/error.jsp</result>
</action>
</package>
My Libraries are:
我的图书馆是：
asm-3.3, asm-commons-3.3, asm-tree-3.3, commons-fileupload-1.3, commons-io-2.0.1, commons-lang3-3.1, commons-logging-1.1.3,
freemarker-2.3.19, javassist-3.11.0.GA, ognl-3.0.6,
log4j-1.2.17, struts2-core-2.3.15.1, xwork-core-2.3.15.1
asm-3.3、asm-commons-3.3、asm-tree-3.3、commons-fileupload-1.3、commons-io-2.0.1、commons-lang3-3.1、commons-logging-1.1.3、
freemarker-2.3.19、 javassist-3.11.0.GA、ognl-3.0.6、
log4j-1.2.17、struts2-core-2.3.15.1、xwork-core-2.3.15.1
My web.xmlis:
我的web.xml是：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>Struts2Starter</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
采纳答案by Roman C
There should be strutstag according to the struts-2.0.dtd
应该有struts标签根据struts-2.0.dtd
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="default" extends="struts-default" >
<action name="getTutorial" class="com.suneel.actions.TutorialAction">
<result name="success">/success.jsp</result>
<result name="failure">/error.jsp</result>
</action>
</package>
</struts>
回答by sathya
It May Help You!!!
可以帮到你！！！
Struts.xml file must have struts tag...
Struts.xml 文件必须有 struts 标签...
add Struts tag before package.
在打包前添加 Struts 标签。
<struts>
<package name="default" extends="struts-default" >
<action name="getTutorial" class="com.suneel.actions.TutorialAction">
<result name="success">/success.jsp</result>
<result name="failure">/error.jsp</result>
</action>
</package>
</struts
web.xml-->
web.xml-->
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>Struts2Starter</display-name>
<welcome-file-list>
<welcome-file>UR_FILE.html</welcome-file>
</welcome-file-list>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
回答by ankit
the default namespace is "/" so when you hit page in address bar // slash is there so to avoid this you have to write filling code
默认命名空间是“/”，所以当你在地址栏中点击页面时 // 斜线在那里，所以为了避免这种情况，你必须编写填充代码
<struts>
<package name="default" extends="struts-default" >
<action name="getTutorial" class="com.suneel.actions.TutorialAction">
<result name="success">success.jsp</result>
<result name="failure">error.jsp</result>
</action>
</package>
</struts
