ant编译web工程部署到tomcat出错

[11:47:03,859]ERROR org.apache.commons.digester.Digester:1472 - Parse Fatal Error at line 2 column 9
: The processing instruction target matching "[xX][mM][lL]" is not allowed.
org.xml.sax.SAXParseException: The processing instruction target matching "[xX][mM][lL]" is not allo
wed.
        at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unkno
wn Source)
        at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(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.XMLScanner.reportFatalError(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLScanner.scanPIData(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanPIData(Unknown
 Source)
        at com.sun.org.apache.xerces.internal.impl.XMLScanner.scanPI(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDispatcher.dispatch(
Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unkno
wn 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.AbstractSAXParser.parse(Unknown Source)
        at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1561)
        at org.apache.catalina.startup.ContextConfig.applicationWebConfig(ContextConfig.java:351)
        at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:1041)
        at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:260)
        at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:4143)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
        at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:809)
        at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:698)
        at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:472)
        at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1122)
        at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:310)
        at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1021)
        at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)
        at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)
        at org.apache.catalina.core.StandardService.start(StandardService.java:450)
        at org.apache.catalina.core.StandardServer.start(StandardServer.java:709)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:551)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)

 

原因：这是由于XML文件或Schema XSD文件内容有空格造成的，在编译生成web.xml文件时，注意换行及空格。