在java代码中,用xslt处理xml文件

用java处理xml文件的方法很多,很多人觉得用起来有点复杂.所以这里提供一个在java代码中引用xslt文件处理xml文件的方法.

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLDecoder;

import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamSource;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.io.DocumentResult;
import org.dom4j.io.DocumentSource;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;

public class Jom4jForXmltoXslt {
/**
* 利用xslt文件转换xml
* @author Administrator
* @parame document,styleSheet
*/
public static Document transformDocument(Document document,File styleSheet)
throws TransformerException
{
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer(new StreamSource(styleSheet));

DocumentSource source = new DocumentSource(document);
DocumentResult result = new DocumentResult();
transformer.transform(source, result);

Document transformedDoc = result.getDocument();

return transformedDoc;
}
/**
* 读取需要转换的xml文件
* @return Document
* @throws UnsupportedEncodingException
* @throws FileNotFoundException
*/
public Document getRoleXML() throws UnsupportedEncodingException, FileNotFoundException
{
InputStream is=null;
URL url=this.getClass().getClassLoader().getResource("resources.xml");
if(url==null) return null;
String path = url.getFile();
path = URLDecoder.decode(path,"UTF-8");
is = new FileInputStream(new File(path));
System.out.println("读到的menuConfig.xml位置在："+path);
SAXReader reader = new SAXReader();

try {
return reader.read(is);
} catch (DocumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}
public static void main(String args[]) throws IOException
{
try {
Document doc = new Jom4jForXmltoXslt().getRoleXML();
Document resultDoc = Jom4jForXmltoXslt.transformDocument(doc, new File("transfer-menu-before.xslt"));

OutputFormat format = OutputFormat.createPrettyPrint();
format.setEncoding("GBK");

XMLWriter writer = new XMLWriter(new FileWriter(new File("output.xml")),format);
writer.write(resultDoc);
writer.close();
System.out.println("用xslt转换xml文件成功!");

} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (TransformerException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}