Question

我正在使用FOP以编程方式创建PDF。

但是我不能更改默认字体...我想使用特定的字体。因此，我下载了该字体的ttf文件，但无法使文本以该字体显示。

这是我的Java类，它加载conf文件并使用xsl文件。

public File createPDFFile(ByteArrayOutputStream xmlSource) throws IOException, SAXException {
        File file = File.createTempFile("" + System.currentTimeMillis(), EXTENSION);
        URL url = new File(this.getClass().getResource("/UserId.xsl").getFile()).toURI().toURL();
        // creation of transform source
        StreamSource transformSource = new StreamSource(url.openStream());
        // create an instance of fop factory
        FopFactory fopFactory = FopFactory.newInstance(new File(this.getClass().getResource("/conf.xconf").getFile()));
        // a user agent is needed for transformation
        FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
        // to store output
        ByteArrayOutputStream pdfoutStream = new ByteArrayOutputStream();
        StreamSource source = new StreamSource(new ByteArrayInputStream(xmlSource.toByteArray()));
        Transformer xslfoTransformer;
        try {
            TransformerFactory transfact = TransformerFactory.newInstance();

            xslfoTransformer = transfact.newTransformer(transformSource);
            // Construct fop with desired output format
            Fop fop;
            try {
                fop = fopFactory.newFop(MimeConstants.MIME_PDF, foUserAgent, pdfoutStream);
                // Resulting SAX events (the generated FO)
                // must be piped through to FOP
                Result res = new SAXResult(fop.getDefaultHandler());

                // Start XSLT transformation and FOP processing
                try {
                    // everything will happen here..
                    xslfoTransformer.transform(source, res);

                    // if you want to save PDF file use the following code
                    OutputStream out = new java.io.FileOutputStream(file);
                    out = new java.io.BufferedOutputStream(out);
                    FileOutputStream str = new FileOutputStream(file);
                    str.write(pdfoutStream.toByteArray());
                    str.close();
                    out.close();
                } catch (TransformerException e) {
                    e.printStackTrace();
                    return null;
                }
            } catch (FOPException e) {
                e.printStackTrace();
                return null;
            }
        } catch (TransformerConfigurationException e) {
            e.printStackTrace();
            return null;
        } catch (TransformerFactoryConfigurationError e) {
            e.printStackTrace();
            return null;
        }
        return file;
    }

然后在我的配置中：

....
<fonts>
           <font embed-url="ChaletNewYorkNineteenEighty.ttf">
              <font-triplet name="Chalet" style="normal" weight="normal"/>
              <font-triplet name="Chalet" style="normal" weight="bold"/>
            </font>
....

在我的XLS中：

<fo:block border="solid 0.1mm black" font-family="Chalet" font-size="8pt" font-weight="normal">

但是在输出中始终使用标准字体，在控制台中，我得到以下信息：

WARN  org.apache.fop.apps.FOUserAgent - Font "Chalet,normal,700" not found. Substituting with "any,normal,700".

Answer 1

您的embed-url似乎不正确。

相对URL相对于font-base属性（或基础）进行解析（如果有） https://xmlgraphics.apache.org/fop/2.1/fonts.html#register

Answer 2

Chalet字体未在conf.xconf文件中声明为字体样式style="normal"和字体粗细weight="700"。但是您尝试在XLS模板中将Chalet和font-weight="700"的字体与style="normal"和Chalet一起使用。因此，出现此错误

WARN org.apache.fop.apps.FOUserAgent-找不到字体“ Chalet，normal，700”。替换为“ any，normal，700”

使用style="normal"和weight="700"配置<fonts> <font embed-url="ChaletNewYorkNineteenEighty.ttf"> <font-triplet name="Chalet" style="normal" weight="normal"/> <font-triplet name="Chalet" style="normal" weight="700"/> <font-triplet name="Chalet" style="normal" weight="bold"/> </font> ......... </fonts>字体

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如何在Java中的Apache FOP中使用自定义字体

2 个答案: