使用Java解析XML文件（二）——DOM4J篇

Dom4j是一个易用的、开源的库，用于XML，XPath和XSLT解析。它应用于Java平台，采用了Java集合框架并完全支持DOM，SAX和JAXP。官方网址：http://www.dom4j.org/。

Dom4J在很多方面拥有更强大的功能，鼎鼎有名的Hibernate也使用它来做XML配置文件的解析。


import java.io.FileWriter;


import java.io.IOException;




import org.dom4j.Document;


import org.dom4j.DocumentException;


import org.dom4j.DocumentHelper;


import org.dom4j.Element;


import org.dom4j.io.OutputFormat;


import org.dom4j.io.SAXReader;


import org.dom4j.io.XMLWriter;






public class DOMCreator ...{






public static void main(String[] args) throws IOException, DocumentException ...{




Document table = DocumentHelper.createDocument();


Element root = table.addElement(Constants.DATA_TABLE);


Element row = root.addElement(Constants.DATA_ROW);


Element item = row.addElement(Constants.DATA_ITEM);


item.addText("data");




OutputFormat format = OutputFormat.createPrettyPrint();


FileWriter writer = new FileWriter("dom4j.xml");


XMLWriter outputter = new XMLWriter(writer, format);


outputter.write(table);


outputter.close();




SAXReader reader = new SAXReader();


Document document = reader.read("dom4j.xml");


XMLWriter domstream = new XMLWriter(System.out, format);


domstream.write(document);


domstream.close();


}


}

常量声明文件：




public interface Constants ...{




public static String DATA_TABLE = "Table";


public static String DATA_ROW = "Row";


public static String DATA_ITEM = "Item";


}

dom4j的详细介绍可参阅：http://xhy0422.javaeye.com/blog/50235

示例可参阅http://blog.csdn.net/yedian/archive/2007/12/19/1954194.aspx