xsl cdata-section-elements使用Xalan-J输出属性

时间:2009-06-30 18:24:35

标签: java xml xslt xalan

我正在尝试使用Xalan 2.7.1在XSLT的结果中输出CDATA部分。我已经在工具中将此XSL应用于XML,结果包含CDATA。在下面的方法中,结果中没有CDATA,也没有抛出异常。我觉得我在这里错过了一些东西。

的test.xml

<?xml version="1.0" encoding="UTF-8"?>
<parentelem>
    <childelem>Test text</childelem>
</parentelem>

test.xsl

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" encoding="UTF-8" cdata-section-elements="newchildelem" />
<xsl:template match="/">
<parentelem>
    <newchildelem><xsl:value-of select="/parentelem/childelem" /></newchildelem>
</parentelem>
</xsl:template>
</xsl:stylesheet>

Transform.java

import java.io.FileReader;
import java.io.StringWriter;

import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stax.StAXResult;
import javax.xml.transform.stax.StAXSource;

public class Transform {

    public static void main (String[] args){
    try {
        XMLStreamReader xmlReader = XMLInputFactory.newInstance().createXMLStreamReader(
            new FileReader("test.xml"));

        XMLStreamReader xslReader = XMLInputFactory.newInstance().createXMLStreamReader(
                new FileReader("test.xsl"));

        TransformerFactory transformerFactory = TransformerFactory.newInstance();
        Source xslSource = new StAXSource(xslReader);
        Source xmlSource = new StAXSource(xmlReader);
        Transformer transf = transformerFactory.newTransformer(xslSource);

        StringWriter xmlString = new StringWriter();
        XMLStreamWriter xmlWriter = XMLOutputFactory.newInstance().createXMLStreamWriter(
                xmlString);

        Result transformedXml = new StAXResult(xmlWriter);
        transf.transform(xmlSource, transformedXml);

        xmlWriter.flush();
        System.out.println(xmlString.toString());
    } catch (Exception e) {
        e.printStackTrace();
    }
}
}

控制台输出

<?xml version="1.0" encoding="UTF-8"?><parentelem><newchildelem>Test text</newchildelem></parentelem>

3 个答案:

答案 0 :(得分:1)

您是说要将CDATA作为元素的一部分输出?

<newchildelem><xsl:value-of select="/parentelem/childelem" /></newchildelem>

<newchildelem><xsl:text>&lt;![CDATA[
</xsl:text><xsl:value-of select="/parentelem/childelem" /><xsl:text>]]&gt</xsl:text></newchildelem>

或其他形式,但使用转义字符省略

<newchildelem><![CDATA[Test text]]></newchildelem>

或者我是否误解了这个问题?

答案 1 :(得分:1)

它适用于我,使用Xalan 2.7.1,不确定它为什么不适合你。

我简化了代码片段,但我认为没有任何功能差异,但无论如何都要尝试:

import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

import org.apache.xalan.Version;

public class Transform {

    public static void main(String[] args) throws Exception {
        System.out.println(Version.getVersion());
        Source xslSource = new StreamSource(Transform.class.getResourceAsStream("test.xsl"));
        Source xmlSource = new StreamSource(Transform.class.getResourceAsStream("test.xml"));

        Transformer transf = TransformerFactory.newInstance().newTransformer(xslSource);

        StreamResult transformedXml = new StreamResult(System.out);
        transf.transform(xmlSource, transformedXml);
    }
}

输出是:

Xalan Java 2.4.1
<?xml version="1.0" encoding="UTF-8"?>
<parentelem><newchildelem><![CDATA[Test text]]></newchildelem></parentelem>

奇怪的是,Xalan的Version.getVersion()返回2.4.1而不是2.7.1,而我肯定使用2.7.1。

答案 2 :(得分:0)

1)我猜结果我没有使用Xalan 2.7.1。 skaffman's回答中的代码让我考虑检查Version.getVersion(),签名是“XL TXE Java 1.0.7”。这在使用IBM java [IBM J9 VM(build 2.4,J2RE 1.6.0)]时似乎是默认值。

2)我从使用StAXSource和StAXResult切换到使用StreamSource和StreamResult,它工作正常(如在skaffman's回答中)。具体来说,从StAXResult到StreamResult的变化是有效的。在StreamResult中使用StAXSource也可以。