openhtmltopdf 支持自定义字体、粗体
一、支持自定义字体
private static void renderPDF(String html, OutputStream outputStream) throws Exception { try { PdfRendererBuilder builder = new PdfRendererBuilder(); addFont(builder, "D:\\font\\"); builder.useUnicodeBidiSplitter(new ICUBidiSplitter.ICUBidiSplitterFactory()); builder.useUnicodeBidiReorderer(new ICUBidiReorderer()); builder.defaultTextDirection(TextDirection.LTR); builder.useSVGDrawer(new BatikSVGDrawer()); builder.useObjectDrawerFactory(buildObjectDrawerFactory()); //这一段可以忽略、正则处理内容(没有优化) String h = html.replaceAll("<!--[\\w\\W\r\\n]*?-->", "").replaceAll("(?i)<img+([^>]*?[\\s\"])[(.*?)>]", "<img$1/>").replaceAll(" ", " ").replaceAll("(ng-bind=\"|ng-class=\"|ng-src=\"|ng-style=\")(.*?)\"", ""); builder.withHtmlContent(h, TestcaseRunner.class.getResource("/testcases/").toString()); builder.toStream(outputStream); builder.run(); } finally { outputStream.close(); } }
/** * 添加字体库 * @param builder * @param dir */ private static void addFont(PdfRendererBuilder builder, String dir) { File f = new File(dir); if (f.isDirectory()) { File[] files = f.listFiles(new FilenameFilter() { public boolean accept(File dir, String name) { String lower = name.toLowerCase(); // lower.endsWith(".otf") || 对otf库的字体支持有问题,暂时屏蔽 return lower.endsWith(".ttf") || lower.endsWith(".ttc"); } }); for (File subFile:files) { String fontFamily = subFile.getName().substring(0, subFile.getName().lastIndexOf(".")); builder.useFont(subFile, fontFamily); } } }
二、支持字体粗体
for (File subFile:files) { String fontFamily = subFile.getName().substring(0, subFile.getName().lastIndexOf("."));
//核心代码
//自定义规则 加粗的库 含有"_"
// 700 为bold对应的数值、默认为400
if(fontFamily.indexOf("_") > 0){ builder.useFont(subFile, fontFamily.substring(0, fontFamily.indexOf("_")), 700, FontStyle.NORMAL, true); }else{ builder.useFont(subFile, fontFamily); } }
斜体等类似
追溯源码,一种字体对应多个字体列表(常规、粗体、斜体、粗体_斜体)
根据字体名称_粗体_style 判断优先级,依次筛选