[原创]求解决异常的方法
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*/ 作者： xuxiangxun E-mail：xu_xiang_xun1987@sina.com QQ：371434406
*/ 时间： 2007-10-19 编程论坛首发
*/ 声明： 尊重作者劳动，转载请保留本段文字
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各位高手，我做了一个Struts的小程序，使用Apache提供的连接池，四层结构两个接口，两个工厂，其中一个是
插件。但是在启动TomeCat5.0的容器时，抛出了一个异常，我实在不能解决，希望哪位高手来看一看啊
2007-10-19 19:38:17 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2007-10-19 19:38:17 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 2634 ms
2007-10-19 19:38:18 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2007-10-19 19:38:18 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/5.0.28
2007-10-19 19:38:18 org.apache.catalina.core.StandardHost start
信息: XML validation disabled
2007-10-19 19:38:18 org.apache.catalina.core.StandardHost getDeployer
信息: Create Host deployer for direct deployment ( non-jmx )
2007-10-19 19:38:18 org.apache.catalina.core.StandardHostDeployer install
信息: Processing Context configuration file URL file:D:\Program Files\Tomcat 5.0.28\conf\Catalina\localhost\balancer.xml
2007-10-19 19:38:19 org.apache.catalina.core.StandardHostDeployer install
信息: Processing Context configuration file URL file:D:\Program Files\Tomcat 5.0.28\conf\Catalina\localhost\admin.xml
2007-10-19 19:38:20 org.apache.struts.util.PropertyMessageResources <init>
信息: Initializing, config='org.apache.struts.util.LocalStrings', returnNull=true
2007-10-19 19:38:20 org.apache.struts.util.PropertyMessageResources <init>
信息: Initializing, config='org.apache.struts.action.ActionResources', returnNull=true
2007-10-19 19:38:21 org.apache.struts.util.PropertyMessageResources <init>
信息: Initializing, config='org.apache.webapp.admin.ApplicationResources', returnNull=true
2007-10-19 19:38:23 org.apache.catalina.core.StandardHostDeployer install
信息: Processing Context configuration file URL file:D:\Program Files\Tomcat 5.0.28\conf\Catalina\localhost\manager.xml
2007-10-19 19:38:23 org.apache.catalina.core.StandardHostDeployer install
信息: Installing web application at context path from URL file:D:\Program Files\Tomcat 5.0.28\webapps\ROOT
2007-10-19 19:38:24 org.apache.catalina.core.StandardHostDeployer install
信息: Installing web application at context path /tomcat-docs from URL file:D:\Program Files\Tomcat 5.0.28\webapps\tomcat-docs
2007-10-19 19:38:24 org.apache.catalina.core.StandardHostDeployer install
信息: Installing web application at context path /jsp-examples from URL file:D:\Program Files\Tomcat 5.0.28\webapps\jsp-examples
2007-10-19 19:38:24 org.apache.catalina.core.StandardHostDeployer install
信息: Installing web application at context path /servlets-examples from URL file:D:\Program Files\Tomcat 5.0.28\webapps\servlets-examples
2007-10-19 19:38:25 org.apache.catalina.core.StandardHostDeployer install
信息: Installing web application at context path /webdav from URL file:D:\Program Files\Tomcat 5.0.28\webapps\webdav
2007-10-19 19:38:25 org.apache.catalina.core.StandardHostDeployer install
信息: Installing web application at context path /MyWeb.myeclipse.bak from URL file:D:\Program Files\Tomcat 5.0.28\webapps\MyWeb.myeclipse.bak
2007-10-19 19:38:25 org.apache.struts.util.PropertyMessageResources <init>
信息: Initializing, config='org.apache.struts.util.LocalStrings', returnNull=true
2007-10-19 19:38:25 org.apache.struts.util.PropertyMessageResources <init>
信息: Initializing, config='org.apache.struts.action.ActionResources', returnNull=true
2007-10-19 19:38:26 org.apache.struts.util.PropertyMessageResources <init>
信息: Initializing, config='com.yourcompany.struts.ApplicationResources', returnNull=true
2007-10-19 19:38:27 org.apache.catalina.core.StandardHostDeployer install
信息: Installing web application at context path /MyWeb from URL file:D:\Program Files\Tomcat 5.0.28\webapps\MyWeb
2007-10-19 19:38:28 org.apache.struts.util.PropertyMessageResources <init>
信息: Initializing, config='org.apache.struts.util.LocalStrings', returnNull=true
2007-10-19 19:38:28 org.apache.struts.util.PropertyMessageResources <init>
信息: Initializing, config='org.apache.struts.action.ActionResources', returnNull=true
2007-10-19 19:38:29 org.apache.commons.digester.Digester error
严重: Parse Error at line 9 column 43: Attribute "value" is required and must be specified for element type "set-property".
org.xml.sax.SAXParseException: Attribute "value" is required and must be specified for element type "set-property".
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.addDTDDefaultAttrsAndValidate(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.handleStartElement(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.emptyElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.commons.digester.Digester.parse(Digester.java:1548)
at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:1006)
at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:955)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:470)
at javax.servlet.GenericServlet.init(GenericServlet.java:211)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1029)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:862)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4013)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4357)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:823)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:277)
at org.apache.catalina.core.StandardHost.install(StandardHost.java:832)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:701)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:432)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:983)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:349)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1091)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:789)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1083)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:478)
at org.apache.catalina.core.StandardService.start(StandardService.java:480)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:2313)
at org.apache.catalina.startup.Catalina.start(Catalina.java:556)
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:585)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:287)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:425)
2007-10-19 19:38:30 org.apache.struts.util.PropertyMessageResources <init>
信息: Initializing, config='com.yourcompany.struts.ApplicationResources', returnNull=true
2007-10-19 19:38:30 org.apache.struts.validator.ValidatorPlugIn initResources
信息: Loading validation rules file from '/WEB-INF/validator-rules.xml'
2007-10-19 19:38:31 org.apache.struts.validator.ValidatorPlugIn initResources
信息: Loading validation rules file from '/WEB-INF/validation.xml'
2007-10-19 19:38:31 org.apache.coyote.http11.Http11Protocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2007-10-19 19:38:32 org.apache.jk.common.ChannelSocket init
信息: JK2: ajp13 listening on /0.0.0.0:8009
2007-10-19 19:38:33 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/170 config=D:\Program Files\Tomcat 5.0.28\conf\jk2.properties
2007-10-19 19:38:33 org.apache.catalina.startup.Catalina start
信息: Server startup in 15412 ms
