iText + HTMLWorker - 如何更改默认字体？ [英] iText + HTMLWorker - How to change default font?
问题描述
我必须从HTML源代码创建一个PDF文件。目前，我正在处理与输出文件中的特殊（波兰语）字符有关的问题，正是由于缺少这些字符。
I have to create a PDF file from a HTML source. Currently, I'm coping with problem concerning special (polish) characters in the output file, precisely with their lack.
HTML源代码：
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<table width="100%" border="0.5" align="center" cellpadding="0" style="border-collapse:collapse; border:1px solid black; font-family:Arial, Helvetica, sans-serif; font-size:16px">
<tr>
<td align="center" ><b>Test: ąęłóćńśŁÓŃĆŻŹąśżźłęó</b></td>
</tr>
</table>
Java源代码：
Document document = new Document(PageSize.A4, 38, 38, 50, 38);
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("iTextExample.pdf"));
document.open();
HTMLWorker htmlWorker = new HTMLWorker(document);
htmlWorker.parse(new StringReader(readFileAsString("index.html")));
document.close();
public static String readFileAsString(String filePath) throws IOException {
DataInputStream dis = new DataInputStream(new FileInputStream(filePath));
try {
long len = new File(filePath).length();
if (len > Integer.MAX_VALUE) {
throw new IOException("File " + filePath + " too large, was " + len + " bytes.");
}
byte[] bytes = new byte[(int) len];
dis.readFully(bytes);
return new String(bytes, "UTF-8");
} finally {
dis.close();
}
}
我的问题是：如何更改默认字体（Helvetica）到例如。 Arial Bold在整个PDF文档中？
我测试了许多与StyleSheet连接的示例，但没有一个工作。我必须更改默认字体，因为没有波兰字符 - 这是我希望的解决方案。
I've tested many examples connected with StyleSheet and none of them worked. I have to change a default font, because there's no polish characters - that's the solution I hope is going to work.
感谢任何帮助！
编辑：
My FontProvider:
class defaultFontProvider extends FontFactoryImp {
private String _default;
public defaultFontProvider(String def) {
_default = def;
}
public Font getFont(String fontName, String encoding, boolean embedded, float size, int style, BaseColor color, boolean cached) {
if (fontName == null || size == 0) {
fontName = _default;
}
return super.getFont(fontName, encoding, embedded, size, style, color, cached);
}
}
上面的代码嵌入 arial .ttf 这是确定的，但是如何使它成为整个文档的默认字体（而不是Helvetica）。
The code above embeds arial.ttf which is OK, but how do I make it the default font (instead of Helvetica) for the whole document.
然后..
Map<String,Object> providers = new HashMap<String, Object>();
defaultFontProvider dfp = new defaultFontProvider("arial.ttf");
providers.put(HTMLWorker.FONT_PROVIDER, dfp);
HTMLWorker htmlWorker = new HTMLWorker(document);
htmlWorker.setProviders(providers);
推荐答案
在样式标签中，也许你可以使用CSS3更改字体：
In your style tag, perhaps you can use CSS3 to change the font:
<style>
@font-face {
font-family: myFont;
src: url(Filename);
}
</style>
不确定这是否是您要求的。
Not sure if this is what you were asking.
这篇关于iText + HTMLWorker - 如何更改默认字体？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
