JAVA利用XSLT进行格式转换，XML转成自己需要的XML、HTML等。

本文介绍了一种使用XSLT将XML文件转换为HTML的方法，并展示了如何通过Java程序读取、转换和输出XML文件。此外，还提供了一个示例程序，该程序能够将XML资源转换成所需的XML格式。

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package com.test;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.text.SimpleDateFormat;
import java.util.Date;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

import org.dom4j.DocumentException;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;

public class xmlVSxslTest {

/**
* ��
* @param args
* @throws Exception
*/
public static void main(String[] args)throws Exception{
//获取系统当前时间
SimpleDateFormat currDF=new SimpleDateFormat("yyyyMMddHHmmssSSS");
String fileName=currDF.format(new Date());
String xmlFile = "src/com/test/xml.xml";
String xslFile = "src/com/test/xsl.xsl";
String htmlFileName = "E:/"+fileName+".html";
String xmlFileName = "com/test/test0332xsl.xml";
String xslFileName = "com/test/input0332.xsl";
xmlVSxslTest.Transform(xmlFile, xslFile, htmlFileName);
//��԰�xml�ļ�ͨ��xslģ��ת��Ҫ��xml��ʽ�ļ�
String str = parseXmlResource(xmlFileName,"utf-8");
String src = returnXml(str, xslFileName, "utf-8");
//��src��뵽xml��
strChangeXML(src);
System.out.println(src);
}
/**
* ��xml�ļ�ת��Ϊhtml�ļ�
* @param xmlFileName ת��ļ��xml�ļ�·��
* @param xslFileName ת��ģ�壬xsl�ļ�·��
* @param htmlFileName ��ļ�·��Լ��ļ�
* @throws Exception
*/
public static void Transform(String xmlFileName, String xslFileName,String htmlFileName)throws Exception {
TransformerFactory tFac = TransformerFactory.newInstance();
Source xslSource = new StreamSource(xslFileName);
Transformer t = tFac.newTransformer(xslSource);
File xmlFile = new File(xmlFileName);
File htmlFile = new File(htmlFileName);
Source source = new StreamSource(xmlFile);
Result result = new StreamResult(htmlFile);
t.transform(source, result);
}
/**
* ��xml�ļ�
* @param resource xml��·��
* @param encoding �ַ��
* @return String ��Ҫ��xml�ַ�
* @throws Exception
*/
public static String parseXmlResource(String resource,String encoding)throws Exception{
//��ָ��еļ��еõ��ж�ȡָ��Դ
InputStream inputStream = xmlVSxslTest.class.getClassLoader().getResourceAsStream(resource);
//�õ�һ��µ��Դ��ֽ��
InputSource inputSource = new InputSource(inputStream);
//��ַ��
inputSource.setEncoding(encoding);
//��幤��API ��ʹӦ�ó��ô�XML�ļ��DOM��Ľ��
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
//��һ��ʵ��ĵ��ʹ�õ�ǰ��õĲ��
DocumentBuilder builder = factory.newDocumentBuilder();
//�ڸ��Դ��ݽ��Ϊһ��XML�ĵ��һ��µ�DOM �ļ��
Document document = builder.parse(inputSource);
//��һ��TransformerFactory��ʵ��
TransformerFactory tf = TransformerFactory.newInstance();
//��һ��µı�ѹ��ִ�и��Ƶ�Դ��Ľ��
Transformer t = tf.newTransformer();
//��
t.setOutputProperty("encoding", encoding);
//��һ��µ��ֽ��
ByteArrayOutputStream bos = new ByteArrayOutputStream();
//�ؼ�� document.getDocumentElement()��Ϊ�˲��ɵ�xml��ͷ��
//��һ��µ�DOM�ڵ��Դ
//�ĵ�Ԫ�ص��ӽڵ��
//��ֽ��һ��StreamResult
t.transform(new DOMSource(document.getDocumentElement()), new StreamResult(bos));
//��ת��Ϊ�ַ��ָ��ַ��뽫�ֽ�ת��ַ�
String xml = bos.toString(encoding);
return xml ;
}
/**
* ת��ļ��xmlͨ��xslת��
* @param xml ת��ļ�
* @param xsl ת��ģ��
* @param encoding �ַ��
* @return String ��ת��xml�ַ�
* @throws Exception
*/
public static String returnXml(String xml,String xsl,String encoding)throws Exception{
//��ȡ�ַ��
StringWriter stringWriter = new StringWriter();
//��ȡ��ӡ��Ϊ�ַ��ʽ
PrintWriter printWriter = new PrintWriter(stringWriter);
//��String,��ȡXML�ַ��Դ
Source srcSource = new StreamSource(new ByteArrayInputStream(xml.getBytes(encoding)));
//��ת��Ϊ��ӡ��
Result destResult = new StreamResult(printWriter);
//��ȡת��ģ��
ClassLoader cl = xmlVSxslTest.class.getClassLoader();
InputStream is = cl.getResourceAsStream(xsl);
Source xslSource = new StreamSource(is);
//��ת��
TransformerFactory transFact = TransformerFactory.newInstance();
//��ת��
Transformer trans = transFact.newTransformer(xslSource);
//ʵ��ת��
trans.transform(srcSource, destResult);
//��ת��ֵ�� ص��ַ��
String xmlParsed = stringWriter.toString();
//�رմ�ӡ��
printWriter.close();
return xmlParsed ;
}
//��ַ�string��ת��xml�ļ�
public static void strChangeXML(String str) throws IOException {
SimpleDateFormat currDF=new SimpleDateFormat("yyyyMMddHHmmssSSS");
String fileName=currDF.format(new Date());
SAXReader saxReader = new SAXReader();
org.dom4j.Document document;
try {
document = saxReader.read(new ByteArrayInputStream(str.getBytes("UTF-8")));
OutputFormat format = OutputFormat.createPrettyPrint();
XMLWriter writer = new XMLWriter(new FileWriter(new File("src/com/test/"+fileName+".xml")),format);
writer.write(document);
writer.close();
} catch (DocumentException e) {
e.printStackTrace();
}

}
}