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嗨，我想在一个 pdf 中打印所有语言。我的代码如下。我无法在我的 pdf 中看到除英语以外的任何字符。请检查附件以获取生成的 pdf。

我不明白真正的问题出在哪里

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.charset.Charset;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.tool.xml.ElementList;
import com.itextpdf.tool.xml.XMLWorker;
import com.itextpdf.tool.xml.XMLWorkerFontProvider;
import com.itextpdf.tool.xml.css.StyleAttrCSSResolver;
import com.itextpdf.tool.xml.html.CssAppliers;
import com.itextpdf.tool.xml.html.CssAppliersImpl;
import com.itextpdf.tool.xml.html.Tags;
import com.itextpdf.tool.xml.parser.XMLParser;
import com.itextpdf.tool.xml.pipeline.css.CSSResolver;
import com.itextpdf.tool.xml.pipeline.css.CssResolverPipeline;
import com.itextpdf.tool.xml.pipeline.end.ElementHandlerPipeline;
import com.itextpdf.tool.xml.pipeline.html.HtmlPipeline;
import com.itextpdf.tool.xml.pipeline.html.HtmlPipelineContext;

public class ParseHtml7 {
    public static final String DEST = "arabic.pdf";
    public static final String HTML =  "<html><head></head><body style=\"font-size:12.0pt; font-family:Times New Roman\">"+ "<p>This is hindi language testपरीक्षण </p> "
            +"<p>This is tamil language test சோதனை </p>"
            +"<p>   This is maly language test ujian </p>"
            +"<p>   This is thai language test ทดสอบ&lt;/p>"
            +"<p>   This is viyatamese language test thử nghiệm</p>"
            +"<p>   This is khmer language test ការធ្វើតេស្ត&lt;/p>"
            +"<p>   This is arabic language test اختبار</p>"
            +"<p>   This is french language test tester</p>"
            +"<p>   This is russian language test контрольная работа</p>"
            +"<p>   This is korean language test 테스트&lt;/p>"
            +"<p>   This is japanese language test テスト&lt;/p>"
            +"  <p>This is chinese language test 测试</p>"
            +"</body></html>";

    public static void main(String\[\] args) throws IOException, DocumentException {
        File file = new File(DEST);
        //file.getParentFile().mkdirs();
        new ParseHtml7().createPdf(DEST);
    }

    /**
     * Creates a PDF with the words "Hello World"
     * @param file
     * @throws IOException
     * @throws DocumentException
     */
    public void createPdf(String file) throws IOException, DocumentException {
        // step 1
        Document document = new Document();
        // step 2
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(file));
        // step 3
        document.open();
        // step 4
        // Styles
        CSSResolver cssResolver = new StyleAttrCSSResolver();
        XMLWorkerFontProvider fontProvider = new XMLWorkerFontProvider(XMLWorkerFontProvider.DONTLOOKFORFONTS);
        //fontProvider.register("resources/fonts/NotoNaskhArabic-Regular.ttf");
        fontProvider.register("/Users/user/Downloads/MyFonts/FreeSans.ttf");
        fontProvider.register("/Users/user/Downloads/MyFonts/THSarabunNew.ttf");
        fontProvider.register("/Users/user/Downloads/MyFonts/Kh-Content.ttf");
        fontProvider.register("/Users/user/Downloads/MyFonts/THSarabunNew Italic.ttf");
        fontProvider.register("/Users/user/Downloads/MyFonts/THSarabunNew BoldItalic.ttf");
        fontProvider.register("/Users/user/Downloads/MyFonts/THSarabunNew Bold.ttf");
        fontProvider.register("/Users/user/Downloads/MyFonts/arial.ttf");
        fontProvider.register("/Users/user/Downloads/MyFonts/FreeSans.ttf");
        fontProvider.register( "/Users/user/Downloads/MyFonts/NotoSansCJKsc-Regular.otf");
        fontProvider.register( "/Users/user/Downloads/MyFonts/arialuni.ttf");
        CssAppliers cssAppliers = new CssAppliersImpl(fontProvider);
        // HTML
        HtmlPipelineContext htmlContext = new HtmlPipelineContext(cssAppliers);
        htmlContext.setTagFactory(Tags.getHtmlTagProcessorFactory());
        // Pipelines
        ElementList elements = new ElementList();
        ElementHandlerPipeline pdf = new ElementHandlerPipeline(elements, null);
        HtmlPipeline html = new HtmlPipeline(htmlContext, pdf);
        CssResolverPipeline css = new CssResolverPipeline(cssResolver, html);

        // XML Worker
        XMLWorker worker = new XMLWorker(css, true);
        XMLParser p = new XMLParser(worker);
        p.parse(new ByteArrayInputStream((HTML.toString().getBytes("UTF-8"))), Charset.forName("UTF-8"));

        PdfPTable table = new PdfPTable(1);
        PdfPCell cell = new PdfPCell();

        for (Element e : elements) {
            System.out.println(e);
            cell.addElement(e);
        }
        table.addCell(cell);
        document.add(table);
        // step 5
        document.close();
    }
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