tomcat启动报错No UserDatabase component found under key UserDatabase

今天外地工厂在使用tomcat启动项目时,报了一个错误,错误如下:

ParseFatalErroratline1column1:Contentisnotallowedinprolog.
org.xml.sax.SAXParseException:Contentisnotallowedinprolog.
atcom.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195)
atcom.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:174)
atcom.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:388)
atcom.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1414)
atcom.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:1039)
atcom.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
atcom.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)

。。。。。。

LifecycleException: No UserDatabase component found under key UserDatabase
at org.apache.catalina.realm.UserDatabaseRealm.start(UserDatabaseRealm.java:261)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1037)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)
at org.apache.catalina.core.StandardService.start(StandardService.java:519)

。。。。。。

然后仔细检查了一下,所有配置文件,发现tomcat-user.xml文件异常,重新copy一个新的tomcat-user.xml覆盖就可以了,可能是由于服务非法关机导致文件异常!

 

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转载自zhangshufei8001.iteye.com/blog/2377251