XML 实用工具类

XML 实用工具类

JSP教程-Java与XML

package com.elink.util;

/*

*

Company: 凌科软件 www.elingke.com

* @author liubaojun

* @version 1.0

* Created on 2004-11-29

* 来源于 elinkBSP 部分源代码

*/

import java.io.*;

import java.util.*;

import javax.xml.parsers.*;

import javax.xml.transform.*;

import javax.xml.transform.dom.*;

import javax.xml.transform.stream.*;

import org.w3c.dom.*;

import org.xml.sax.*;

public class XmlUtil

{

public static synchronized Document newDocument()

{

Document doc = null;

try

{

DocumentBuilder db = DocumentBuilderFactory.newInstance().

newDocumentBuilder();

doc = db.newDocument();

}

catch (Exception e)

{

LogUtil.logException( e );

}

return doc;

}

public static synchronized Element createRootElement()

{

Element rootElement = null;

try

{

DocumentBuilder db = DocumentBuilderFactory.newInstance().

newDocumentBuilder();

Document doc = db.newDocument();

rootElement = doc.getDocumentElement();

}

catch (Exception e)

{

e.printStackTrace();

}

return rootElement;

}

public static synchronized Element getRootElement(String fileName)

{

if (fileName == null || fileName.length() == 0)

{

return null;

}

try

{

Element rootElement = null;

FileInputStream fis = new FileInputStream(fileName);

rootElement = getRootElement(fis);

fis.close();

return rootElement;

}

catch (Exception e)

{

return null;

}

}

public static synchronized Element getRootElement(InputStream is)

{

if (is == null)

{

return null;

}

Element rootElement = null;

try

{

DocumentBuilder db = DocumentBuilderFactory.newInstance().

newDocumentBuilder();

Document doc = db.parse(is);

rootElement = doc.getDocumentElement();

}

catch (Exception e)

{

e.printStackTrace();

}

return rootElement;

}

public static synchronized Element getRootElement(InputSource is)

{

if (is == null)

{

return null;

}

Element rootElement = null;