使用FOP将xsl-fo转pdf

第三步骤：将生成的fo文件转成pdf。【由于.xsl文件不能识别中文，我在root路径下，给root添加了一个属性，font-family，让其可以识别中文。其余需要修改的属性或者样式，需要你自己修改该.xsl文件】
font-family=“？？？” ，？？？的值就是你设置的字体名称。
可以放在fop.xml配置文件中
fop.xml的配置文件内容如下：

<?xml version="1.0"?><!-- $Id: fop.xml 901793 2012-12-21 bin.yin $ --><!-- NOTE: This is the version of the configuration --><fop version="1.0">  <!-- Base URL for resolving relative URLs -->  <base>.</base>  <!-- Source resolution in dpi (dots/pixels per inch) for determining the size of pixels in SVG and bitmap images, default: 72dpi -->  <source-resolution>72</source-resolution>  <!-- Target resolution in dpi (dots/pixels per inch) for specifying the target resolution for generated bitmaps, default: 72dpi -->  <target-resolution>72</target-resolution>  <!-- Default page-height and page-width, in case value is specified as auto -->  <default-page-settings height="29.7cm" width="40cm"/>  <!-- Information for specific renderers -->  <!-- Uses renderer mime type for renderers -->  <renderers>    <renderer mime="application/pdf">      <filterList>        <!-- provides compression using zlib flate (default is on) -->        <value>flate</value>      </filterList>      <fonts>        <!-- embedded fonts -->        <!--        This information must exactly match the font specified        in the fo file. Otherwise it will use a default font.        For example,        <fo:inline font-family="Arial" font-weight="bold" font-style="normal">            Arial-normal-normal font        </fo:inline>        for the font triplet specified by:        <font-triplet name="Arial" style="normal" weight="bold"/>        If you do not want to embed the font in the pdf document        then do not include the "embed-url" attribute.        The font will be needed where the document is viewed        for it to be displayed properly.        possible styles: normal | italic | oblique | backslant        possible weights: normal | bold | 100 | 200 | 300 | 400                          | 500 | 600 | 700 | 800 | 900        (normal = 400, bold = 700)        -->        <font metrics-url="conf/fonts/arial.xml" kerning="yes" embed-url="conf/fonts/arial.ttf">          <font-triplet name="Arial" style="normal" weight="normal"/>          <font-triplet name="Arial" style="italic" weight="normal"/>        </font>        <font metrics-url="conf/fonts/arialb.xml" kerning="yes" embed-url="conf/fonts/arialb.ttf">          <font-triplet name="Arial" style="normal" weight="bold"/>          <font-triplet name="Arial" style="italic" weight="bold"/>        </font>        <font metrics-url="conf/fonts/SimHei.xml" kerning="yes" embed-url="conf/fonts/SimHei.ttf">          <font-triplet name="SimHei" style="normal" weight="normal"/>          <font-triplet name="SimHei" style="normal" weight="bold"/>          <font-triplet name="SimHei" style="italic" weight="normal"/>          <font-triplet name="SimHei" style="italic" weight="bold"/>        </font>        <font metrics-url="conf/fonts/SimSun.xml" kerning="yes" embed-url="conf/fonts/SimSun.ttc">          <font-triplet name="SimSun" style="normal" weight="normal" />          <font-triplet name="SimSun" style="normal" weight="bold" />          <font-triplet name="SimSun" style="italic" weight="normal" />          <font-triplet name="SimSun" style="italic" weight="bold" />        </font>        <!--新宋体//-->        <font metrics-url="conf/fonts/NSimSun.xml" kerning="yes" embed-url="conf/fonts/SimSun.ttc">          <font-triplet name="NSimSun" style="normal" weight="normal" />          <font-triplet name="NSimSun" style="normal" weight="bold" />          <font-triplet name="NSimSun" style="italic" weight="normal" />          <font-triplet name="NSimSun" style="italic" weight="bold" />        </font>        <font metrics-url="conf/fonts/Code39Seven.xml" kerning="yes" embed-url="conf/fonts/Code39Seven.ttf">          <font-triplet name="Code39Seven" style="normal" weight="normal" />        </font>      </fonts>      <!-- This option lets you specify additional options on an XML handler -->      <!--xml-handler namespace="http://www.w3.org/2000/svg">        <stroke-text>false</stroke-text>      </xml-handler-->    </renderer>    <renderer mime="application/postscript">      <!-- This option forces the PS renderer to rotate landscape pages -->      <!--auto-rotate-landscape>true</auto-rotate-landscape-->      <!-- This option lets you specify additional options on an XML handler -->      <!--xml-handler namespace="http://www.w3.org/2000/svg">        <stroke-text>false</stroke-text>      </xml-handler-->    </renderer>    <renderer mime="image/png">      <!--transparent-page-background>true</transparent-page-background-->    </renderer>    <renderer mime="image/tiff">      <!--transparent-page-background>true</transparent-page-background-->      <!--compression>CCITT T.6</compression-->    </renderer>    <renderer mime="text/xml">    </renderer>    <!-- RTF does not have a renderer    <renderer mime="text/rtf">    </renderer>    -->  </renderers></fop>

配置文件中的各种字体需要我们自己生成，可参考：
https://www.ibm.com/developerworks/cn/xml/x-fop/
这篇文章有点老，但是字体部分我们可以借鉴。

主体代码很简单：

public void convertFO2PDF(File fo, File pdf) throws Exception {        // Construct driver        FopFactory factory = FopFactory.newInstance();        factory.setUserConfig("conf/fop.xml");        OutputStream out = null;        out = new FileOutputStream(pdf);        out = new BufferedOutputStream(out);        Fop fop = factory.newFop(MimeConstants.MIME_PDF, out);        TransformerFactory transformerFactory = TransformerFactory.newInstance();        Transformer transformer = transformerFactory.newTransformer();        Source source = new StreamSource(fo);        Result res = new SAXResult(fop.getDefaultHandler());        transformer.transform(source, res);        out.close();    }

调用该方法就行。最终就可以得到你想要的pdf文件了。

上图为效果图 还是很不错吧。