使用Dom4j构造XML入门实例

package dom4j;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;

public class Dom4jTest ...{

    
    public static void main(String[] args) throws IOException ...{
         String realpath=System.getProperty("user.dir")+File.separator+"src"+File.separator+"dom4j"+File.separator+"dom.xml";
           Document doc=DocumentHelper.createDocument();
           
           doc.addProcessingInstruction("xml-stylesheet", "type='text/xsl' href='students.xsl'");
           
           Element root=doc.addElement("students");
           Element eleStu=root.addElement("student");
           Element eleName=eleStu.addElement("name");
           Element eleAge=eleStu.addElement("age");
           
           eleName.setText("gao");
           eleAge.setText("27");
           
            //使用PrintWriter直接输入到console
//           PrintWriter writer=new PrintWriter(System.out);
//           doc.write(writer);
//           writer.close();
           
           
           OutputFormat format=new OutputFormat();
           format.setEncoding("gb2312");
          // XMLWriter writer=new XMLWriter(format);  //使用XMLWriter(可以自定义格式)直接输入到console
           XMLWriter writer=new XMLWriter(new FileWriter(realpath),format);//输出到文件
           writer.write(doc);
           writer.close();
           
    }

}