XML transformation in Java is an important skill for developers. XSLT (eXtensible Stylesheet Language Transformations) is a powerful tool capable of transforming XML data into different formats such as HTML, text or other XML files. In this article, PHP editor Xigua will introduce you to the basic concepts and usage of XSLT, helping you get started quickly and master the skills of XML conversion.
introduction
XSLT is a declarative language for specifying the transformation of an XML document into another representation. It uses XPath expressions to select XML elements and apply template rules to transform them. XSLT transformations are typically used in the following scenarios:
XSLT in Java
Using XSLT in Java involves the following steps:
Transf<strong class="keylink">ORM</strong>erFactory
to create a Transformer
object to perform the transformation. Transformer
object to transform the input XML document into the output format. Demo code
The following code demonstrates how to perform a simple XSLT transformation using Java:
import javax.xml.transform.Transformer; import javax.xml.transform.TransformerException; import javax.xml.transform.TransformerFactory; import javax.xml.transform.stream.StreamResult; import javax.xml.transform.stream.StreamSource; public class XSLTExample { public static void main(String[] args) throws TransformerException { // 加载 XSLT 样式表 TransformerFactory factory = TransformerFactory.newInstance(); Transformer transformer = factory.newTransformer(new StreamSource("stylesheet.xsl")); // 加载 XML 输入文档 StreamSource xmlSource = new StreamSource("input.xml"); // 执行转换并写入输出结果 StreamResult result = new StreamResult(System.out); transformer.transform(xmlSource, result); } }
XSLT stylesheet
XSLT stylesheets are written in XML and define transformation rules. The following is a simple XSLT stylesheet for converting XML data to HTML:
<?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="1.0" xmlns:xsl="Http://www.w3.org/1999/XSL/Transform"> <xsl:template match="/root"> <html> <head> <title>XSLT Example</title> </head> <body> <h1>Employee List</h1> <ul> <xsl:for-each select="employee"> <li><xsl:value-of select="name"/></li> </xsl:for-each> </ul> </body> </html> </xsl:template> </xsl:stylesheet>
pros and cons
XSLT XML transformation in Java has the following advantages:
Some disadvantages of XSLT include:
in conclusion
XSLT is a powerful tool for XML transformation in Java. It provides flexible and powerful conversion capabilities, making it suitable for various scenarios. By understanding the basics of XSLT and its application in Java, developers can leverage this language for their XML processing needs.
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