某些HTML实体(箭头)未在PDF(iText)中呈现 [英] Certain HTML entities (arrows) are not rendered in PDF (iText)
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问题描述
我尝试使用XMLWorker和iText在HTML中渲染⇒ ⇔ € © →. PDF中仅显示版权和欧元符号.我使用了dafault字体和Arial，但没有成功.
I tried to render ⇒ ⇔ € © → in the HTML with the XMLWorker and iText. Only the copyright and euro symbol appear in the PDF. I used the dafault font and Arial but without success.
是否有一种方法可以渲染这些实体?有没有一种替代方法可以在文本中显示箭头?
Is there a way to get those entities rendered? Is there an alterantive way to render arrows in text?
推荐答案
您可以在 ParseHtml3中看到示例，它对我有用:
As you can see in the ParseHtml3 example, it works for me:
这是我创建PDF的代码:
This is my code to create the PDF:
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
String str = "<html><head></head><body style=\"font-size:12.0pt; font-family:Arial\">"+
"<p>Special symbols: ← ↓ ↔ ↑ → € ©</p>" +
"</body></html>";
XMLWorkerHelper worker = XMLWorkerHelper.getInstance();
InputStream is = new ByteArrayInputStream(str.getBytes());
worker.parseXHtml(writer, document, is);
// step 5
document.close();
}
请注意，所有实体均以小写形式编写.
Note that all entities are written in lower-case.
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