struts2.0验证框架出现 Document root element "validators", must match DOCTYPE root "struts".

: Document root element"validators", must match DOCTYPE root"struts". at (null:5:13) org.xml.sax.SAXParseException: Document root element"validators", 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 2011-5-1 20:58:59 com.opensymphony.xwork2.validator.AnnotationActionValidatorManager loadFile 严重: Caught exception while loading file org/action/StrutsAction-validation.xml Document root element"validators", must match DOCTYPE root"struts". - file:///D:/Program%20Files/Java/tools/apache-tomcat-6.0.16/bin/org/action/StrutsAction-validation.xml:5:13     at com.opensymphony.xwork2.util.DomHelper.parse(DomHelper.java:123)     at com.opensymphony.xwork2.validator.ValidatorFileParser.parseActionValidatorConfigs(ValidatorFileParser.java:54)     at com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.loadFile(AnnotationActionValidatorManager.java:361)     at

 

 

     错误原因：验证框架配置文件标签错误原来为：      <?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">         应为：<?xml version="1.0"encoding="UTF-8"?>   <!DOCTYPE validators PUBLIC          "-//OpenSymphony Group//XWork Validator 1.0.2//EN"          "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">

现总结验证框架经常注意问题

校验文件没有问题： 1.校验Action必须继承ActionSupport 2.校验文件命名 Action类名-validation.xml 或 Action类名-Action请求名-validation.xml 3.校验文件必须同Action类在同一目录下。