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org.xml.sax.SAXException:错误处理[jar:file:{app}/WEB-INF/lib/jsf-impl-2.9.jar!/META-INF/mojarra_ext.taglib.xml@47,31]

taglib jsf-2

2

would_like_to_be_anon · 技术社区 · 11 年前

当我们部署到tomcat中时,JSF应用程序工作正常,但是,当我们访问UI中的第一个页面时,就会出现这个错误。之后,在其他页面中看不到该错误。

以下是我们使用的jsf依赖项:

<dependency>
            <groupId>com.sun.faces</groupId>
            <artifactId>jsf-api</artifactId>
            <version>2.2.9</version>
            <type>jar</type>
        </dependency>
        <dependency>
            <groupId>com.sun.faces</groupId>
            <artifactId>jsf-impl</artifactId>
            <version>2.2.9</version>
            <type>jar</type>
        </dependency>

这是错误堆栈跟踪:

SEVERE: Error Loading Library: jar:file:../.metadata/.plugins/org.eclipse.wst.server.core/tmp1/wtpwebapps/{app}/WEB-INF/lib/jsf-impl-2.2.9.jar!/META-INF/mojarra_ext.taglib.xml
java.io.IOException: Error parsing [jar:file:../.metadata/.plugins/org.eclipse.wst.server.core/tmp1/wtpwebapps/{app}/WEB-INF/lib/jsf-impl-2.2.9.jar!/META-INF/mojarra_ext.taglib.xml]: 
    at com.sun.facelets.compiler.TagLibraryConfig.create(TagLibraryConfig.java:410)
    at com.sun.facelets.compiler.TagLibraryConfig.loadImplicit(TagLibraryConfig.java:431)
    at com.sun.facelets.compiler.Compiler.initialize(Compiler.java:87)
    at com.sun.facelets.compiler.Compiler.compile(Compiler.java:104)
    at com.sun.facelets.impl.DefaultFaceletFactory.createFacelet(DefaultFaceletFactory.java:197)
    at com.sun.facelets.impl.DefaultFaceletFactory.getFacelet(DefaultFaceletFactory.java:144)
    at com.sun.facelets.impl.DefaultFaceletFactory.getFacelet(DefaultFaceletFactory.java:95)
    at com.sun.facelets.FaceletViewHandler.buildView(FaceletViewHandler.java:517)
    at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:567)
    at com.sun.faces.lifecycle.RenderResponsePhase.execute(Unknown Source)
    at com.sun.faces.lifecycle.Phase.doPhase(Unknown Source)
    at com.sun.faces.lifecycle.LifecycleImpl.render(Unknown Source)
    at javax.faces.webapp.FacesServlet.service(Unknown Source)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at com.bphx.cool.jsf.CustomHeaderFilter.doFilter(CustomHeaderFilter.java:51)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:611)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:744)
Caused by: org.xml.sax.SAXException: Error Handling [jar:file:../.metadata/.plugins/org.eclipse.wst.server.core/tmp1/wtpwebapps/{app}/WEB-INF/lib/jsf-impl-2.2.9.jar!/META-INF/mojarra_ext.taglib.xml@47,31]
    at com.sun.facelets.compiler.TagLibraryConfig$LibraryHandler.error(TagLibraryConfig.java:376)
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:137)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:437)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:368)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:325)
    at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.rootElementSpecified(XMLDTDValidator.java:1599)
    at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.handleStartElement(XMLDTDValidator.java:1877)
    at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(XMLDTDValidator.java:742)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1370)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$ContentDriver.scanRootElementHook(XMLDocumentScannerImpl.java:1290)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3130)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:880)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:649)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:333)
    at javax.xml.parsers.SAXParser.parse(SAXParser.java:195)
    at com.sun.facelets.compiler.TagLibraryConfig.create(TagLibraryConfig.java:407)
    ... 31 more

我可以做什么来防止此错误日志?

2 回复 | 直到 11 年前

1

4

Art Fedorychak 11 年前

恕我直言,我认为选择的答案并不能解决这个问题。至少它没有解决我的问题。

引发此异常的类( com.sun.facelets.compiler.TagLibraryConfig$LibraryHandler )来自一个独立的Facelet实现。如果您调试此问题,您将看到此错误的根本原因是XML的根元素与DTD不匹配(提示: XMLDTDValidator.rootElementSpecified ).

鉴于TagLibraryConfig只存在于独立的Facelets中,您可能会遇到与我相同的问题。发生的情况是,当旧Facelet的TagLibraryConfig扫描类路径时 META-INF/**/*.taglib.xml 它拿起了Mojarra的 META-INF/mojarra_ext.taglib.xml 这与旧的DTD不完全兼容(例如,版本属性当时不存在)。它记录了失败并愉快地继续。

避免此错误的最佳方法是开始使用JSF2.x中内置的Facelets。

然而,如果您一直使用Facelets1.x(例如,因为您使用的是RichFaces3.x),并且对忽略此异常的含义感到好奇,那么您应该知道,标记库所做的只是提供了三个Mojarra特定的标记:

regexValidator 哪些重复 f:validateRegex 自JSF 2.0以来可用
creditcardValidator 执行基本的信用卡号格式验证和Luhn检查
focus 渲染一个小脚本,将焦点设置在任意元素上。

如果你不需要这些标签,那么忽略这个错误是非常安全的。我考虑了一些从日志中删除它的方法,但每个解决方案(关闭记录器、自定义上下文类加载器或自定义 FaceletViewHandler )对于这样一个不重要的问题,要么有缺点,要么看起来像是过度了。

2

3

BalusC 11 年前

原因:org.xml.sax.SAXException:错误处理[jar:file:../.metadata/.plugins/org.eclipse.wst.server.core/tmp1/wtpwebapps/{app}/WEB-INF/lib/jsf-impl-2.9.jar!/META-INF/mojarra_ext.taglib.xml@47,31]

错误出现在第47行第31行 /META-INF/mojarra_ext.taglib.xml 中的文件 jsf-impl-2.2.9.jar 文件如果您使用ZIP工具打开JAR并浏览第47行附近的taglib文件,那么您将看到:

44    <facelet-taglib xmlns="http://xmlns.jcp.org/xml/ns/javaee"
45                    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
46                    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facelettaglibrary_2_2.xsd"
47                    version="2.2">
48        <namespace>http://mojarra.dev.java.net/mojarra_ext</namespace>
49        <tag>

这是与 version="2.2" 。这表明存在版本冲突。首先,您需要确保 /WEB-INF/faces-config.xml webapp的文件按照JSF 2.2正确声明,而不是更早的版本:

<?xml version="1.0" encoding="UTF-8"?>
<faces-config
    xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd"
    version="2.2">
    <!-- Config here -->
</faces-config>

您还需要确保 /WEB-INF/lib 不包含任何Facelets1.x JAR文件。包裹 com.sun.facelets.* 在堆栈跟踪中,建议在运行时类路径中存在Facelets1.x,这在使用JSF2.x时是不正确的,因为它已经与Facelets2.x捆绑在包中 com.sun.faces.facelets.* .