在 Apache FOP 中，如何以编程方式设置字体库，并且仍然拥有中的字体？已加载？
我正在使用 Apache FOP 1.0。该代码在不同的服务器上运行，因此我将字体放在每个服务器的实例根目录中。我的计划是以编程方式设置字体库（到服务器实例根目录，加上“/fonts/”），并在我的 fop 配置文件中，设置相对于该字体库的字体路径。下面是创建 FopFactory 的代码片段：
private static final String FONT_BASE = System.getProperty("com.sun.aas.instanceRoot") + "/fonts/";
public FOPWrapperBean() throws Exception {
ClassLoader loader = this.getClass().getClassLoader();
InputStream fopStream = loader.getResourceAsStream("META-INF/fop.xconf");
logger.log(Level.FINE, "InputStream: {0}", fopStream.toString());
DefaultConfigurationBuilder cfgBuilder = new DefaultConfigurationBuilder();
Configuration cfg = cfgBuilder.build(fopStream);
this.fopFactory = FopFactory.newInstance();
this.fopFactory.setUserConfig(cfg);
fopFactory.getFontManager().setFontBaseURL("file://" + FONT_BASE);
logger.log(Level.FINE, "Font base url: {0}", fopFactory.getFontManager().getFontBaseURL());
fopStream.close();
}
fop.xconf 几乎完全是默认的。它包含
<base>.</base>
和
<fonts>
<directory>DejaVuTtf</directory>
</fonts>
（在 {instance-root}/fonts/DejaVuTtf 中有几种字体，如果我只给出绝对路径，我可以正确加载它们 - 但这不适用于拥有多个服务器，每个服务器可能有不同的字体实例根目录）。
如何使用以编程方式确定的路径加载字体？
谢谢！
I'm using Apache FOP 1.0. The code is running on different servers, so I put the fonts in each server's instance root. My plan is to set the font base programmatically (to the server instance root, plus "/fonts/"), and in my fop configuration file, set font paths relative to this font base. Here's the code snippet that makes the FopFactory:
private static final String FONT_BASE = System.getProperty("com.sun.aas.instanceRoot") + "/fonts/";
public FOPWrapperBean() throws Exception {
ClassLoader loader = this.getClass().getClassLoader();
InputStream fopStream = loader.getResourceAsStream("META-INF/fop.xconf");
logger.log(Level.FINE, "InputStream: {0}", fopStream.toString());
DefaultConfigurationBuilder cfgBuilder = new DefaultConfigurationBuilder();
Configuration cfg = cfgBuilder.build(fopStream);
this.fopFactory = FopFactory.newInstance();
this.fopFactory.setUserConfig(cfg);
fopFactory.getFontManager().setFontBaseURL("file://" + FONT_BASE);
logger.log(Level.FINE, "Font base url: {0}", fopFactory.getFontManager().getFontBaseURL());
fopStream.close();
}
fop.xconf is almost entirely default. It contains
<base>.</base>
and
<fonts>
<directory>DejaVuTtf</directory>
</fonts>
(There are several fonts in {instance-root}/fonts/DejaVuTtf , which I can load correctly if I just give an absolute path -- but that doesn't work with having multiple servers, each of which may have different instance root directories).
How do I load in a font with a programmatically-determined path?
Thanks!
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（3）
你的java代码应该可以正常工作，因为FONT_BASE是在运行时确定的，依赖于服务器——我们正在做一些与此非常相似的事情并且它工作正常。也许您的系统属性没有为您提供您认为的目录？
Your java code should work fine, since FONT_BASE is determined at runtime, dependent on the server - we are doing something very similar to this and it works fine. Perhaps your system property is not giving you the directory you think it is?
我决定在加载
fopStream之后和将其输入到DefaultConfigurationBuilder之前使用“预处理器”进行一些变量替换I decided to to use a "preprocessor" to do some variable replacement after loading the
fopStreamand before feeding it into theDefaultConfigurationBuilder我最终以我没有想到的明显方式解决了这个问题：使用系统字体目录。
I ended up solving this problem in the obvious way that didn't occur to me: use the system fonts directory.