java - Jasper 报告 PDF 中的字符编码

Question

我正在尝试在 jasper 报告中使用自定义字体。 Myanmar3 是缅甸的标准字体。一切正常，但 ReportTitle 必须是 Myanmar Font with Myanmar3。Google 也将 Myanmar3 用于缅甸语言环境。

将报告导出为 html 文件时。它可以很好地显示报告标题。但是，导出的 PDF 文件无法正确显示。

在浏览器中。

PDF格式

public void report() throws Exception {
    List<SalesReport> saleReports = salesReportService.findSalesReport(new SalesReportCriteria());
    InputStream inputStream = new FileInputStream("report-template/saleReportTemplate.jrxml");
    String outputFilePdf = "D:/temp/BasicReport.pdf";
    String outputFileHtml = "D:/temp/BasicReport.html";
    Map paramMap = new HashMap();
    paramMap.put("ReportTitle", "\u1005\u101B\u1004\u103A\u1038\u1021\u1004\u103A\u1038\u1019\u103B\u102C\u1038\u1011\u100A\u103A\u101E\u103D\u1004\u103A\u1038\u1001\u103C\u1004\u103A\u1038");
    paramMap.put("TableDataSource", new JRBeanCollectionDataSource(saleReports));
    JasperDesign jasperDesign = JRXmlLoader.load(inputStream);
    JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);
    JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, paramMap, new JRBeanCollectionDataSource(saleReports));
    JasperExportManager.exportReportToPdfFile(jasperPrint, outputFilePdf);
    JasperExportManager.exportReportToHtmlFile(jasperPrint, outputFileHtml);
}

saleReportTemplate.jrxml

<?xml version="1.0" encoding="UTF-8"?>
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" 
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
              xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" 
              name="TableReport" pageWidth="842" pageHeight="595" orientation="Landscape" whenNoDataType="AllSectionsNoDetail" columnWidth="802" 
              leftMargin="20" rightMargin="20" topMargin="30" bottomMargin="30" isFloatColumnFooter="true" whenResourceMissingType="Empty" uuid="a255c602-4ff1-4db8-ab72-65b5c3ff9bdd">

    <property name="ireport.zoom" value="1.0"/>
    <property name="ireport.x" value="0"/>
    <property name="ireport.y" value="0"/>
    <style name="Myanmar3" isDefault="true" fontName="Myanmar3" fontSize="10" isBold="false" isItalic="false" isUnderline="false" isStrikeThrough="false"/>
    <style name="Table">
        <box leftPadding="0">
            <pen lineWidth="1.0" lineColor="#000000"/>
        </box>
    </style>
    <style name="TableHeader" mode="Opaque" backcolor="#808080"/>
    <style name="TableFooter" mode="Opaque" backcolor="#C0C0C0"/>
    <subDataset name="TableData" uuid="41cd3dac-2d22-41b9-9872-8fdb465d0f85">
        <field ... for table generation/>
    </subDataset>
    <parameter name="TableDataSource" class="net.sf.jasperreports.engine.JRDataSource"/>
    <parameter name="ReportTitle" class="java.lang.String" isForPrompting="false"/>
    <title>
        <band height="153">
            <textField isBlankWhenNull="true">
                <reportElement uuid="b44cb7c1-f7d5-467c-8982-b95f65dcb849" x="106" y="0" width="573" height="59"/>
                <textElement textAlignment="Center" verticalAlignment="Middle">
                    <font size="22" isBold="true" isPdfEmbedded="true"/>
                </textElement>
                <textFieldExpression><![CDATA[$P{ReportTitle}]]></textFieldExpression>
            </textField>
            <componentElement>
                -->other tag for table....
            </componentElement>
        </band>
    </title>
</jasperReport>

我已经添加了 MYANMAR3.TTF 文件并在 jasperreports-fonts-5.1.0.jar 中配置了 myanmar3 字体。

jasperreports_extension.properties

net.sf.jasperreports.extension.registry.factory.simple.font.families=net.sf.jasperreports.engine.fonts.SimpleFontExtensionsRegistryFactory
net.sf.jasperreports.extension.simple.font.families.dejavu=net/sf/jasperreports/fonts/fonts.xml
net.sf.jasperreports.extension.simple.font.families.myanmar3=net/sf/jasperreports/fonts/fonts.xml

字体.xml

...other default config.

<fontFamily name="Myanmar3">
    <normal>net/sf/jasperreports/fonts/myanmar3/MYANMAR3.TTF</normal>
    <bold>net/sf/jasperreports/fonts/myanmar3/MYANMAR3.TTF</bold>
    <italic>net/sf/jasperreports/fonts/myanmar3/MYANMAR3.TTF</italic>
    <boldItalic>net/sf/jasperreports/fonts/myanmar3/MYANMAR3.TTF</boldItalic>
    <pdfEncoding>Identity-H</pdfEncoding>
    <pdfEmbedded>true</pdfEmbedded>
</fontFamily>

我测试了这么多配置、引用和示例。但是，对 PDF 文件没有影响。

如果您有任何建议和提供，请告诉我。

Answer 1

这是iText的问题(测试版本 5.5.4)和 ttf 字体，itext 不支持连字，请参阅下面的评论

由于 jasper-reports 使用 itext 作为其库来呈现 pdf，因此您没有什么可以在 jasper 报告中解决此问题。

使用 仅 iText 的示例代码将呈现与 jasper 报告相同的输出

public class FontTest {

    /** The resulting PDF file. */
    public static final String RESULT = "pdf/fontTest.pdf";
    /** Test text. */
    public static final String TEST = "\u1005\u101B\u1004\u103A\u1038\u1021\u1004\u103A\u1038\u1019\u103B\u102C\u1038\u1011\u100A\u103A\u101E\u103D\u1004\u103A\u1038\u1001\u103C\u1004\u103A\u1038";

    public void createPdf(String filename) throws IOException, DocumentException {
        Document document = new Document();
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(filename));
        document.open();
        BaseFont bf = BaseFont.createFont(
            "lib/myanmar3.ttf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
        Font font = new Font(bf, 20);
        ColumnText column = new ColumnText(writer.getDirectContent());
        column.setSimpleColumn(36, 730, 569, 36);
        column.addElement(new Paragraph(TEST, font));
        column.go();
        document.close();
    }

    public static void main(String[] args) throws IOException, DocumentException {
        new FontTest().createPdf(RESULT);
    }
}

我已经发布了跟进 question在 itext部分了解为什么 itext 无法正确呈现字体。

这是@Bruno Lowagie的评论(iText 的原始开发者)是

"The behavior you see is caused by the fact that iText doesn't support ligatures. You need one of the next, unreleased versions of iText. We'll release beta versions next year but only to customers."