问题帖子:java docx4j代码doc文件转pdf文件异常:Couldn‘t get [Content_Types].xml from ZipFile

            <!-- For DOCX to PDF Conversion using docx4j -->
            <dependency>
                <groupId>org.docx4j</groupId>
                <artifactId>docx4j-core</artifactId>
                <version>8.3.9</version>
            </dependency>
            <dependency>
                <groupId>org.docx4j</groupId>
                <artifactId>docx4j-export-fo</artifactId>
                <version>8.3.9</version>
            </dependency>
            <!--
  docx4j 需要一个 SLF4J 的日志实现。
  如果你的项目中已经有 slf4j-log4j12, logback-classic 或其他实现，则无需添加此项。
  如果没有，可以添加下面这个简单的实现。
-->
            <dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-simple</artifactId>
                <version>1.7.32</version>
                <scope>runtime</scope>
            </dependency>

import org.docx4j.Docx4J;
import org.docx4j.openpackaging.packages.WordprocessingMLPackage;
    
    
    /**
     * 使用 docx4j 将 DOCX 文件转换为 PDF 文件
     * @param docxFile 待转换的 Word 文档
     * @return 转换后生成的 PDF 文件
     * @throws Exception 转换过程中发生错误
     */
    private File convertDocxToPdf(File docxFile) throws Exception {
        if (docxFile == null || !docxFile.exists()) {
            throw new FileNotFoundException("用于转换的DOCX文件未找到: " + docxFile);
        }

        try {
            // 1. 加载 DOCX 文件
            WordprocessingMLPackage wordMLPackage = WordprocessingMLPackage.load(docxFile);

            // 2. 创建一个PDF文件的输出路径 (例如：将 "template.docx" 变为 "template.pdf")
            String pdfPath = docxFile.getAbsolutePath().replaceAll("\\.docx$", ".pdf")
                    .replaceAll("\\.doc$", ".pdf"); // 兼容 .doc
            File pdfFile = new File(pdfPath);

            // 3. 创建一个指向PDF文件的输出流
            try (OutputStream os = new FileOutputStream(pdfFile)) {
                // 4. 执行转换
                Docx4J.toPDF(wordMLPackage, os);
                os.flush();
            }

            log.info("成功将 {} 转换为 {}", docxFile.getName(), pdfFile.getName());
            return pdfFile;

        } catch (Exception e) {
            log.error("DOCX 转换为 PDF 时出错", e);
            throw new Exception("文档转换为PDF格式失败。", e);
        }
    }

org.docx4j.openpackaging.exceptions.Docx4JException: Couldn't get [Content_Types].xml from ZipFile
	at org.docx4j.openpackaging.io3.Load3.get(Load3.java:148)
	at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:572)
	at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:421)
	at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:298)
	at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:276)
	at org.docx4j.openpackaging.packages.WordprocessingMLPackage.load(WordprocessingMLPackage.java:170)
	at com.ruoyi.system.controller.SignInfoController.convertDocxToPdf(SignInfoController.java:892)
	at com.ruoyi.system.util.DocToPdfUtils.main(DocToPdfUtils.java:41)
Caused by: org.docx4j.openpackaging.exceptions.InvalidFormatException: Bad [Content_Types].xml
	at org.docx4j.openpackaging.contenttype.ContentTypeManager.parseContentTypesFile(ContentTypeManager.java:889)
	at org.docx4j.openpackaging.io3.Load3.get(Load3.java:146)
	... 7 common frames omitted
Caused by: java.lang.RuntimeException: javax.xml.bind.JAXBException: JAXB: Can't instantiate JAXB Reference Implementation
 - with linked exception:
[java.lang.ClassNotFoundException: org.docx4j.jaxb.ri.NamespacePrefixMapper]
	at org.docx4j.XmlUtils.marshaltoString(XmlUtils.java:941)
	at org.docx4j.XmlUtils.marshaltoString(XmlUtils.java:857)
	at org.docx4j.openpackaging.contenttype.ContentTypeManager.parseContentTypesFile(ContentTypeManager.java:869)
	... 8 common frames omitted
Caused by: javax.xml.bind.JAXBException: JAXB: Can't instantiate JAXB Reference Implementation
	at org.docx4j.jaxb.NamespacePrefixMapperUtils.tryUsingRI(NamespacePrefixMapperUtils.java:95)
	at org.docx4j.jaxb.NamespacePrefixMapperUtils.getPrefixMapper(NamespacePrefixMapperUtils.java:71)
	at org.docx4j.XmlUtils.marshaltoString(XmlUtils.java:889)
	... 10 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.docx4j.jaxb.ri.NamespacePrefixMapper
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:527)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:315)
	at org.docx4j.jaxb.NamespacePrefixMapperUtils.tryUsingRI(NamespacePrefixMapperUtils.java:79)
	... 12 common frames omitted
Exception in thread "main" java.lang.Exception: 文档转换为PDF格式失败。
	at com.ruoyi.system.controller.SignInfoController.convertDocxToPdf(SignInfoController.java:911)
	at com.ruoyi.system.util.DocToPdfUtils.main(DocToPdfUtils.java:41)
Caused by: org.docx4j.openpackaging.exceptions.Docx4JException: Couldn't get [Content_Types].xml from ZipFile
	at org.docx4j.openpackaging.io3.Load3.get(Load3.java:148)
	at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:572)
	at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:421)
	at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:298)
	at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:276)
	at org.docx4j.openpackaging.packages.WordprocessingMLPackage.load(WordprocessingMLPackage.java:170)
	at com.ruoyi.system.controller.SignInfoController.convertDocxToPdf(SignInfoController.java:892)
	... 1 more
Caused by: org.docx4j.openpackaging.exceptions.InvalidFormatException: Bad [Content_Types].xml
	at org.docx4j.openpackaging.contenttype.ContentTypeManager.parseContentTypesFile(ContentTypeManager.java:889)
	at org.docx4j.openpackaging.io3.Load3.get(Load3.java:146)
	... 7 more
Caused by: java.lang.RuntimeException: javax.xml.bind.JAXBException: JAXB: Can't instantiate JAXB Reference Implementation
 - with linked exception:
[java.lang.ClassNotFoundException: org.docx4j.jaxb.ri.NamespacePrefixMapper]
	at org.docx4j.XmlUtils.marshaltoString(XmlUtils.java:941)
	at org.docx4j.XmlUtils.marshaltoString(XmlUtils.java:857)
	at org.docx4j.openpackaging.contenttype.ContentTypeManager.parseContentTypesFile(ContentTypeManager.java:869)
	... 8 more
Caused by: javax.xml.bind.JAXBException: JAXB: Can't instantiate JAXB Reference Implementation
 - with linked exception:
[java.lang.ClassNotFoundException: org.docx4j.jaxb.ri.NamespacePrefixMapper]
	at org.docx4j.jaxb.NamespacePrefixMapperUtils.tryUsingRI(NamespacePrefixMapperUtils.java:95)
	at org.docx4j.jaxb.NamespacePrefixMapperUtils.getPrefixMapper(NamespacePrefixMapperUtils.java:71)
	at org.docx4j.XmlUtils.marshaltoString(XmlUtils.java:889)
	... 10 more
Caused by: java.lang.ClassNotFoundException: org.docx4j.jaxb.ri.NamespacePrefixMapper
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:527)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:315)
	at org.docx4j.jaxb.NamespacePrefixMapperUtils.tryUsingRI(NamespacePrefixMapperUtils.java:79)
	... 12 more