package testXMLDemo;
import org.dom4j.*;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.List;
/**
 * DOM4J 讀寫XML
 * Created by Cindy on 2016/9/16.
 */
public class dom4JDemo {

    /**
     * 生成XML檔案
 
*/
public static void   generateDocument(){
        Document document = DocumentHelper.createDocument();     //建立文件物件
Element catalogElement=document.addElement("catalog");   //建立元素
Element journalElement=catalogElement.addElement("journal");
Element articleElement=journalElement.addElement("article");
Element titleElement=articleElement.addElement("title"
 
);
titleElement.setText("Java Configuration with XML Schema");  //設定元素內容值
Element authorElement=articleElement.addElement("author");
Element firstElement=authorElement.addElement("first");
firstElement.addText("Han");
Element lastElement=authorElement.addElement("last");
lastElement.addText("Cindy");
 
        try{
            XMLWriter output =new XMLWriter(new FileWriter(new File("D:/catalog.xml")));  //建立輸出物件
output.write(document);  //將文件物件寫入輸出物件中
output.close();
} catch (IOException e) {
           System.out.println(e.getMessage());
}

    }

    /**
     * 讀取XML檔案
* @throws DocumentException
     */
public static void getXML() throws DocumentException {
        SAXReader reader=new SAXReader();
Document document=reader.read(new File("src/sys-config.xml"));   //獲取文件物件
Element node=document.getRootElement();          //獲得根節點
Element dbinfoElement=node.element("db-info");    //獲得元素節點
Element drivernameElement=dbinfoElement.element("driver-name");
Element urlElement=dbinfoElement.element("url");
Element usernameElement=dbinfoElement.element("user-name");
Element passwordElement=dbinfoElement.element("password");
String drivername=drivernameElement.getText();   //獲得節點內容
String url=urlElement.getText();
String username=usernameElement.getText();
String password=passwordElement.getText();
System.out.println(drivername);
System.out.println(url);
System.out.println(username);
System.out.println(password);}
    public static void main(String [] args) throws DocumentException {
        //generateDocument();
getXML();
}
}