Docx4j将html转换为docx

Question

当我将HTML转换为docx时，我遇到了新的问题，它会引发异常：

org.xml.sax.SAXParseException；lineNumber: 4；columnNumber: 73；引用实体"nbsp“，但未声明

正如我所理解的，这是因为docx4j认为我的文件是XML，并希望将其转换为docx，但是在XML中只有5个预定义实体，而像nbsp这样的实体没有在XML中定义。如何使docx4j在不声明doctype中的实体nbsp的情况下将转换成文档？

它是docx4j的不正确工作还是它的局限性？

这是我的代码：

package ru.simplexsoftware.constructorOfDocuments.web.rest;
import org.docx4j.convert.in.xhtml.XHTMLImporterImpl;
import org.docx4j.openpackaging.exceptions.Docx4JException;
import org.docx4j.openpackaging.exceptions.InvalidFormatException;
import org.docx4j.openpackaging.packages.WordprocessingMLPackage;
import org.docx4j.openpackaging.parts.WordprocessingML.NumberingDefinitionsPart;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.HttpRequestHandler;
import ru.simplexsoftware.constructorOfDocuments.dao.TemplateDao;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.xml.bind.JAXBException;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;


public class DocxFileDownloadServlet implements HttpRequestHandler {

@Autowired
TemplateDao templateDao;
@Override
public void handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    String parameter = request.getParameter("documentId");

    Long documentId = Long.parseLong(parameter);

    WordprocessingMLPackage wordMLPackage = null;
    try {
        wordMLPackage = WordprocessingMLPackage.createPackage();
    } catch (InvalidFormatException e) {
        e.printStackTrace();
    }

    NumberingDefinitionsPart ndp = null;
    try {
        ndp = new NumberingDefinitionsPart();
    } catch (InvalidFormatException e) {
        e.printStackTrace();
    }
    try {
        wordMLPackage.getMainDocumentPart().addTargetPart(ndp);
    } catch (InvalidFormatException e) {
        e.printStackTrace();
    }
    try {
        ndp.unmarshalDefaultNumbering();
    } catch (JAXBException e) {
        e.printStackTrace();
    }

    XHTMLImporterImpl xHTMLImporter = new XHTMLImporterImpl(wordMLPackage);
    xHTMLImporter.setHyperlinkStyle("Hyperlink");

    String htmlString=templateDao.get(documentId).html;
    htmlString = htmlString.replaceAll("<br>","<br/>");
    InputStream stream = new ByteArrayInputStream(htmlString.getBytes(StandardCharsets.UTF_8.name()));
    // Convert the XHTML, and add it into the empty docx we made
    try {
        wordMLPackage.getMainDocumentPart().getContent().addAll(
                xHTMLImporter.convert(htmlString, null));
    } catch (Docx4JException e) {
        e.printStackTrace();
    }

    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();

    try {
        wordMLPackage.save(outputStream);
    } catch (Docx4JException e) {
        e.printStackTrace();
    }


    response.setContentType("application/msword");
    response.getOutputStream().write(outputStream.toString().getBytes("UTF-8"));
    response.flushBuffer();

}
}

Answer 1

您可以尝试使用AltChunkType类型将HTML字符串插入docx段落中。

wordMLPackage.getMainDocumentPart().addAltChunk(AltChunkType.Xhtml, htmlString .getBytes());