使用Java解析XML文件（一）——JDOM篇

JDOM是一种解析XML的Java工具包,官方地址：http://www.jdom.org/，目前版本为1.1。

尽管JDOM 在性能测试时表现不佳，在测试 10M 文档时内存溢出 ，但是他API比较简单，容易上手。


import java.io.File;


import java.io.FileWriter;


import java.io.IOException;




import org.jdom.Document;


import org.jdom.Element;


import org.jdom.JDOMException;


import org.jdom.input.SAXBuilder;


import org.jdom.output.Format;


import org.jdom.output.XMLOutputter;






public class DOMCreator ...{






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




Document table = new Document(new Element(Constants.DATA_TABLE));


Element row = new Element(Constants.DATA_ROW);


Element item = new Element(Constants.DATA_ITEM);


item.setText("data");


row.setContent(item);


table.getRootElement().setContent(row);




Format format = Format.getPrettyFormat();


XMLOutputter outputter = new XMLOutputter(format);


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


outputter.output(table, writer);


writer.close();




SAXBuilder builder = new SAXBuilder();


Document document = builder.build(new File("sample.xml"));


XMLOutputter domstream = new XMLOutputter();


domstream.output(document, System.out);


}


}

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";


}