无法在 JBoss 7 中使用 docx4j

Question

我能够使用 docx4j ( http://www.docx4java.org )成功创建一个简单的项目。这个简单的项目成功地创建并写入了 .docx 文档。现在我试图在一个更大的项目中完成同样的事情。这个更大的项目是一个在 JBoss AS 7.1 中运行的 web 应用程序。但是，在我的第一个与 docx4j 相关的代码行中：

WordprocessingMLPackage wmlp = WordprocessingMLPackage.createPackage();

它遇到了一个错误：

java.lang.NoClassDefFoundError: Could not initialize class org.docx4j.jaxb.Context
    at org.docx4j.openpackaging.parts.JaxbXmlPart.<init>(JaxbXmlPart.java:79) [docx4j-2.8.1.jar:]
    at org.docx4j.openpackaging.parts.JaxbXmlPartXPathAware.<init>(JaxbXmlPartXPathAware.java:64) [docx4j-2.8.1.jar:]
    at org.docx4j.openpackaging.parts.WordprocessingML.DocumentPart.<init>(DocumentPart.java:157) [docx4j-2.8.1.jar:]
    at org.docx4j.openpackaging.parts.WordprocessingML.MainDocumentPart.<init>(MainDocumentPart.java:76) [docx4j-2.8.1.jar:]
    at org.docx4j.openpackaging.packages.WordprocessingMLPackage.createPackage(WordprocessingMLPackage.java:432) [docx4j-2.8.1.jar:]
    at org.docx4j.openpackaging.packages.WordprocessingMLPackage.createPackage(WordprocessingMLPackage.java:421) [docx4j-2.8.1.jar:]
    at foo.servlets.bar.DocxServlet.doGet(DocxServlet.java:101) [classes:]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:734) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]
    at foo.includes.other.ServletNameSetFilter.doFilter(ServletNameSetFilter.java:83) [fooClasses.jar:]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]
    at foo.includes.other.HtmlEscapeFilter.doFilter(HtmlEscapeFilter.java:67) [fooClasses.jar:]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]
    at foo.includes.other.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:64) [fooClasses.jar:]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:]
    at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final]
    at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:]
    at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:505) [jbossweb-7.0.13.Final.jar:]
    at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:445) [jbossweb-7.0.13.Final.jar:]
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:]
    at java.lang.Thread.run(Thread.java:636) [rt.jar:1.6.0_20]

此外，当我停止并重新启动我的服务器而不重建我的 EAR 时，这个错误不会出现，而是我从同一个方法调用 (createPackage()) 中得到一个 NoSuchElementException：

我相信这与 JBoss 有自己的 JAXB 实现有关，但 JAXBContext 是在 docx4j 库中初始化的。这是代码（来自http://www.docx4java.org/trac/docx4j/browser/trunk/docx4j/src/main/java/org/docx4j/jaxb/Context.java）：

jc = JAXBContext.newInstance("org.docx4j.wml:" +
                "org.docx4j.dml:org.docx4j.dml.chart:org.docx4j.dml.chartDrawing:org.docx4j.dml.compatibility:org.docx4j.dml.diagram:org.docx4j.dml.lockedCanvas:org.docx4j.dml.picture:org.docx4j.dml.wordprocessingDrawing:org.docx4j.dml.spreadsheetdrawing:org.docx4j.dml.diagram2008:" +
                // All VML stuff is here, since compiling it requires WML and DML (and MathML), but not PML or SML
                "org.docx4j.vml:org.docx4j.vml.officedrawing:org.docx4j.vml.wordprocessingDrawing:org.docx4j.vml.presentationDrawing:org.docx4j.vml.spreadsheetDrawing:org.docx4j.vml.root:" +
                "org.opendope.xpaths:org.opendope.conditions:org.opendope.questions:org.opendope.components:org.opendope.SmartArt.dataHierarchy:" +
                "org.docx4j.math:" +
                "org.docx4j.sharedtypes:org.docx4j.bibliography",classLoader );
log.info("loaded " + jc.getClass().getName() + " .. loading others ..");

jcThemePart = jc; //JAXBContext.newInstance("org.docx4j.dml",classLoader );
jcDocPropsCore = JAXBContext.newInstance("org.docx4j.docProps.core:org.docx4j.docProps.core.dc.elements:org.docx4j.docProps.core.dc.terms",classLoader );
jcDocPropsCustom = JAXBContext.newInstance("org.docx4j.docProps.custom",classLoader );
jcDocPropsExtended = JAXBContext.newInstance("org.docx4j.docProps.extended",classLoader );
jcXmlPackage = JAXBContext.newInstance("org.docx4j.xmlPackage",classLoader );
jcRelationships = JAXBContext.newInstance("org.docx4j.relationships",classLoader );
jcCustomXmlProperties = JAXBContext.newInstance("org.docx4j.customXmlProperties",classLoader );
jcContentTypes = JAXBContext.newInstance("org.docx4j.openpackaging.contenttype",classLoader );

jcSectionModel = JAXBContext.newInstance("org.docx4j.model.structure.jaxb",classLoader );

jcXmlDSig = JAXBContext.newInstance("org.plutext.jaxb.xmldsig",classLoader );

从我观察到的情况来看，似乎我可能需要放置一个 jaxb.properties 文件，指定在上面每个 JAXBContext 实例中列出的每个包中使用哪个 jaxb 实现。这样对吗？有什么我想念的吗？

Answer 1

请查看docx4j JBOSS 部署论坛

例如，来自其中一篇文章：

我的 Serializer 和 Xalan jar 的版本。按照指示，我每个都有 2.7.1，但我的应用程序服务器（JBoss 5.1.0）在根 lib/endorsed 文件夹中有不同的版本（未编号：serializer.jar 和 xalan.jar），该文件夹覆盖了这些版本。当我用 2.7.1 版本替换这些罐子时，它工作得很好。

请告诉我们其中的建议是否适合您。