DOM4J操作

 

用JAVA实现对xml文件的操作   DOM4J解析
1：导入dom4j包
2：实现读写功能

package com.viita; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.UnsupportedEncodingException; import java.util.Iterator; import java.util.List; 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 TestDom4j {     // 写入xml文件     public void write() throws Exception {         // TODO Auto-generated method stub         Document doc = DocumentHelper.createDocument();         Element config = doc.addElement("config");// 添加根节点         Element database = config.addElement("database");// 添加子节点         // 为节点再次添加子节点，并赋值         database.addElement("driver").setText("sun.jdbc.odbc.JdbcOdbcDriver");         database.addElement("uri").addComment("this is note").setText(                 "jdbc:odbc:test");         Element pageSet = config.addElement("pageSet"); // 添加子节点         pageSet.addElement("pageSize").addAttribute("default", "5")                 .addAttribute("common", "10").addAttribute("super", "20")                 .setText("15");// 为子结点添加属性并赋值         // 输出         OutputFormat format = OutputFormat.createPrettyPrint();         XMLWriter out = new XMLWriter(new FileOutputStream("c:/super.xml"),                 format);         out.write(doc);         out.close();     }          //xml文件的读取     public void readIterator(Element root) {         // TODO Auto-generated method stub         Iterator it = root.elementIterator();         while(it.hasNext())         {             Element temp = (Element)it.next();             System.out.println(temp.getName()+" "+temp.getText());             this.readIterator(temp);         }     }          public void read() {         // TODO Auto-generated method stub         SAXReader reader = new SAXReader();         try {             Document doc = reader.read("c:/super.xml");                          Element root = doc.getRootElement();                          this.readIterator(root);         } catch (Exception e) {             // TODO Auto-generated catch block             e.printStackTrace();         }     }              public static void main(String[] args) throws Exception {         TestDom4j dom = new TestDom4j();         //dom.write();         dom.read();     } }