openpdf

主要依赖

        <dependency>
            <!-- 将 html 转换为 xml 工具库 -->
            <groupId>org.jsoup</groupId>
            <artifactId>jsoup</artifactId>
            <version>1.17.1</version>
        </dependency>

        <dependency>
            <!-- 第三方 openpdf 包装库,提供 html 转 pdf 功能 -->
            <groupId>org.xhtmlrenderer</groupId>
            <artifactId>flying-saucer-pdf-openpdf</artifactId>
            <version>9.3.1</version>
        </dependency>

测试代码

        // 获取 java 版本
        String version = System.getProperty("java.specification.version");

        // 获取系统类型
        String platform = System.getProperty("os.name", "");
        platform = platform.toLowerCase().contains("window") ? "win" : "linux";

        // 当前程序目录
        String current = System.getProperty("user.dir");

        System.out.println(String.format("current=%s", current));

        // html 文件路径
        File index = Paths.get(current, "..", "index.html").toFile();
        if (!index.exists()) {
            System.out.println(String.format("file not exist,file=%s", index.getAbsolutePath()));
            return;
        }

        try {
            Document document = Jsoup.parse(index, "UTF-8");
            // 补全标记
            document.outputSettings().syntax(Document.OutputSettings.Syntax.xml);

            ITextRenderer render = new ITextRenderer();
            ITextFontResolver fontResolver = render.getFontResolver();

            File[] fonts = Paths.get(current, "..", "fonts").toFile().listFiles();
            for (File item : fonts) {
                // 应该这样添加字体
                fontResolver.addFont(item.getAbsolutePath(), BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
            }

            SharedContext sharedContext = render.getSharedContext();
            sharedContext.setPrint(true);
            sharedContext.setInteractive(false);
            sharedContext.getTextRenderer().setSmoothingThreshold(0);

            // 自定义图片解析
            // sharedContext.setReplacedElementFactory(new ReplacedElementFactoryImpl());

            // 指定根目录,这里需要 URL 格式
            // file:/D:/work/linux-html2pdf-demo/openpdf-demo/../
            String baseUrl = Paths.get(current, "..").toUri().toURL().toString();
            render.setDocumentFromString(document.html(), baseUrl);
            render.layout();

            File file = Paths.get(current, String.format("java%s_%s.pdf", version, platform)).toFile();
            FileOutputStream stream = new FileOutputStream(file);
            render.createPDF(stream);
            stream.close();

            System.out.println(String.format("file=%s", file.getAbsolutePath()));
        } catch (IOException e) {
            throw new RuntimeException(e);
        }

效果预览

openpdf-demo/java1.8_win.pdf · yjihrp/linux-html2pdf-demo - Gitee.com

openpdf-demo/java11_linux.pdf · yjihrp/linux-html2pdf-demo - Gitee.com

测试结果

下一篇 4-LINUX HTML 转 PDF-PDFBOX