【问题标题】:How to add a Processing Instruction [jdom2]如何添加处理指令 [jdom2]
【发布时间】:2015-06-05 13:45:50
【问题描述】:

当有处理指令时

<?xml-stylesheet  type="application/xml"  href="catalog.xsl" ?>

jdom2 如何将它添加到现有的 XML 中

<?xml version="1.0" encoding="ISO-8859-1"?>

<catalog xmlns:foo="http://www.foo.org/" xmlns:bar="http://www.bar.org">
    <foo:cd>
        <title>Empire Burlesque</title>
        <artist>Bob Dylan</artist>
        <country>USA</country>
        <company>Columbia</company>
        <price>10.90</price>
        <bar:year>1985</bar:year>
    </foo:cd>
    <foo:cd>
        <title>Hide your heart</title>
        <artist>Bonnie Tyler</artist>
        <country>UK</country>
        <company>CBS Records</company>
        <price>9.90</price>
        <bar:year>1988</bar:year>
    </foo:cd>
    <foo:cd>
        <title>Greatest Hits</title>
        <artist>Dolly Parton</artist>
        <country>USA</country>
        <company>RCA</company>
        <price>9.90</price>
        <bar:year>1982</bar:year>
    </foo:cd>
</catalog>

只是为了完成示例,这里是 XSL

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:foo="http://www.foo.org/" xmlns:bar="http://www.bar.org">
<xsl:template match="/">
  <html>
  <body>
  <h2>My CD Collection</h2>
    <table border="1">
      <tr bgcolor="#9acd32">
        <th>Title</th>
        <th>Artist</th>
        <th>Country</th>
        <th>Company</th>
        <th>Price</th>
        <th>Year</th>
      </tr>
      <xsl:for-each select="catalog/foo:cd">
      <tr>
        <td><xsl:value-of select="title"/></td>
        <td><xsl:value-of select="artist"/></td>
        <td><xsl:value-of select="country"/></td>
        <td><xsl:value-of select="company"/></td>
        <td><xsl:value-of select="price"/></td>
        <td><xsl:value-of select="bar:year"/></td>
      </tr>
      </xsl:for-each>
    </table>
  </body>
  </html>
</xsl:template>
</xsl:stylesheet>

【问题讨论】:

  • XSL 在这里无关紧要。您必须使用哪些 Java 代码来处理 XML?

标签: java jdom-2


【解决方案1】:

类似

SAXBuilder builder = new SAXBuilder();
Document doc = (Document) builder.build(xmlFile);
ProcessingInstruction xsl = new ProcessingInstruction("xml-stylesheet","type='text/xsl' href='catalog.xsl'");
doc.addContent(0, xsl);

应该可以。请添加您的代码以获得与您的项目更匹配的答案。

【讨论】:

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