Docx4J 错误 [Content_Types].xml 与 WebLogic 12c

Question

我想知道是否有人对设置有同样的问题：

1. WebLogic 12c
2. Docx4J 2.8.1
3. Java EE 6

我尝试使用 Docx4J 获取某个 Microsoft Word 2007 文档的内容，但出现如下错误：

当我尝试这样做时：

WordprocessingMLPackage package = WordprocessingMLPackage.load(new File((path));

它会抛出如下异常：

2013-06-05 15:29:12.0283 ERROR Thread-18 org.docx4j.jaxb.NamespacePrefixMapperUtils – name: com.sun.xml.internal.bind.namespacePrefixMapper value: org.docx4j.jaxb.NamespacePrefixMapperSunInternal@2b0bf3 .. trying RI.
javax.xml.bind.PropertyException: name: com.sun.xml.bind.namespacePrefixMapper value: org.docx4j.jaxb.NamespacePrefixMapper@2a3c7c
at org.eclipse.persistence.jaxb.JAXBMarshaller.setProperty(JAXBMarshaller.java:590)
at org.docx4j.jaxb.NamespacePrefixMapperUtils.tryUsingRI(NamespacePrefixMapperUtils.java:73)
at org.docx4j.jaxb.NamespacePrefixMapperUtils.getPrefixMapper(NamespacePrefixMapperUtils.java:64)
at org.docx4j.jaxb.Context.<clinit>(Context.java:56)
at org.docx4j.openpackaging.contenttype.ContentTypeManager.parseContentTypesFile(ContentTypeManager.java:666)
at org.docx4j.openpackaging.io.LoadFromZipNG.process(LoadFromZipNG.java:206)
at org.docx4j.openpackaging.io.LoadFromZipNG.get(LoadFromZipNG.java:193)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:301)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:245)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:195)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:178)
at org.docx4j.openpackaging.packages.WordprocessingMLPackage.load(WordprocessingMLPackage.java:172)
2013-06-05 15:29:12.0455 ERROR Thread-18 org.docx4j.jaxb.NamespacePrefixMapperUtils – JAXB: neither Reference Implementation nor Java 6 implementation present?
javax.xml.bind.PropertyException: name: com.sun.xml.bind.namespacePrefixMapper value: org.docx4j.jaxb.NamespacePrefixMapper@2a3c7c
at org.eclipse.persistence.jaxb.JAXBMarshaller.setProperty(JAXBMarshaller.java:590)
at org.docx4j.jaxb.NamespacePrefixMapperUtils.tryUsingRI(NamespacePrefixMapperUtils.java:73)
at org.docx4j.jaxb.NamespacePrefixMapperUtils.getPrefixMapper(NamespacePrefixMapperUtils.java:64)
at org.docx4j.jaxb.Context.<clinit>(Context.java:56)
at org.docx4j.openpackaging.contenttype.ContentTypeManager.parseContentTypesFile(ContentTypeManager.java:666)
at org.docx4j.openpackaging.io.LoadFromZipNG.process(LoadFromZipNG.java:206)
at org.docx4j.openpackaging.io.LoadFromZipNG.get(LoadFromZipNG.java:193)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:301)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:245)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:195)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:178)
at org.docx4j.openpackaging.packages.WordprocessingMLPackage.load(WordprocessingMLPackage.java:172)

如上所述，我使用的是 JDK 6，所以这应该是不可能的消息。 但是上面的消息被 Docx4J 内部抑制了，而是抛出了以下异常：

2013-06-05 15:46:38.0392 ERROR Thread-18 com.jonathan.business.catalog.impl.ProductCatalogServiceImpl – Bad [Content_Types].xml
org.docx4j.openpackaging.exceptions.InvalidFormatException: Bad [Content_Types].xml
at org.docx4j.openpackaging.contenttype.ContentTypeManager.parseContentTypesFile(ContentTypeManager.java:699)
at org.docx4j.openpackaging.io.LoadFromZipNG.process(LoadFromZipNG.java:206)
at org.docx4j.openpackaging.io.LoadFromZipNG.get(LoadFromZipNG.java:193)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:301)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:245)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:195)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:178)
at org.docx4j.openpackaging.packages.WordprocessingMLPackage.load(WordprocessingMLPackage.java:172)
Caused by: java.lang.NullPointerException
at org.docx4j.openpackaging.contenttype.ContentTypeManager.parseContentTypesFile(ContentTypeManager.java:666)
... 12 more
2013-06-05 15:46:38.0392 ERROR Thread-18 com.jonathan.business.catalog.impl.ProductCatalogServiceImpl – Bad [Content_Types].xml
org.docx4j.openpackaging.exceptions.InvalidFormatException: Bad [Content_Types].xml
at org.docx4j.openpackaging.contenttype.ContentTypeManager.parseContentTypesFile(ContentTypeManager.java:699)
at org.docx4j.openpackaging.io.LoadFromZipNG.process(LoadFromZipNG.java:206)
at org.docx4j.openpackaging.io.LoadFromZipNG.get(LoadFromZipNG.java:193)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:301)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:245)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:195)
at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:178)
at org.docx4j.openpackaging.packages.WordprocessingMLPackage.load(WordprocessingMLPackage.java:172)
Caused by: java.lang.NullPointerException
at org.docx4j.openpackaging.contenttype.ContentTypeManager.parseContentTypesFile(ContentTypeManager.java:666)
... 12 more

I tried this 正如 Docx4J 论坛中所建议的那样，但没有用。

This question 也没有答案。

Java 6 应该在内部拥有自己的 JAXB 实现，但到目前为止我已经尝试过：

1. 不在库中放入任何 jaxb jar
2. 放入 jaxb jar 版本：2.1.7、2.2.4，还有 2.2.6，都不起作用。

另外，如果它有任何帮助，如果我从 void main 运行它，同样的方法会起作用，如果它是从 WebLogic 服务器执行的，它就不起作用，所以我确信存在类加载问题。

Answer 1

据报道，要让 docx4j 与 Weblogic 12c 一起使用，您可以升级 eclipselink，或切换到 JAXB 参考实现。

要升级 Eclipselink，请参阅http://www.docx4java.org/forums/weblogic-f25/how-to-update-to-eclipselink-2-5-in-web-t1574.html

http://www.docx4java.org/forums/weblogic-f25/classcastexception-in-weblogic-12c-t1643.html#p5675 建议切换到 JAXB RI 是一种更好的方法，目前无论如何。

请注意，要将 Eclipselink JAXB 实现与 docx4j 一起使用，您应该使用 docx4j 3 beta 或更高版本。