fop生成pdf的中文乱码问题

    

         最近在做fop生成pdf的相关内容，出现了生成中文乱码的问题，在网上找了相关资料，终于解决了问题，在这里写出来和大家分享。
 
     错误就不展示了。解决办法
     
     一：中文字体包。  
    中文字体包一般以ttc或ttf作为后缀，如simkai.ttc楷体。可以到网上下载，也可以在本机C:\Windows\Fonts下查找。

    二：生成字体矩阵xml文件
    cid-fonts.pdf中给出了使用命令行的办法，觉得麻烦，再这里决定使用java程序生成，如下代码，其中"C:\\Windows\\Fonts\\simkai.ttf", "E:simkai.xml" 如下代码，分别是字体原路径和目标文件路径

import org.apache.fop.fonts.apps.TTFReader;


public class Fonts {
    public static void main(String args[]){
        String[] parameters = {
        "-ttcname",
        "simkai",
        "C:\\Windows\\Fonts\\simkai.ttf", "E:simkai.xml", };
        TTFReader.main(parameters);
        }

}

   运行上述代码后将会在e盘看到simkai.xml文件
    三：将字体登记
        建立一个fop.xml文件，代码如下
     

<?xml version="1.0"?>
<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="21cm"/>

  <!-- 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>
        <!--宋楷//-->
        <font metrics-url="conf/fonts/simkai.xml" kerning="yes" embed-url="conf/fonts/SIMKAI.ttf">
         <font-triplet name="simkai" style="normal" weight="normal" />
         <font-triplet name="simkai" style="normal" weight="bold" />
         <font-triplet name="simkai" style="italic" weight="normal" />
         <font-triplet name="simkai" 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="">
        <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="">
        <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>

       类结构图：
          

    四：在xsl文件中使用

<fo:block font-size="24pt" font-weight="bold" line-height="20mm" vertical-align="top"
            text-align-last="center" space-before.optimum="12pt" font-family="simkai">
            <xsl:value-of select="Title" />
        </fo:block >

      运行后效果