package Chapter12;

import org.jdom.Document;
import org.jdom.Element;
import org.jdom.input.SAXBuilder;
import org.jdom.output.Format;
import org.jdom.output.XMLOutputter;

public class XMLExtractor {
	
	public static String getXMLContent( String filename )
	{
	 	SAXBuilder sb = new SAXBuilder();
	    try
	    {        
			Document doc = sb.build(filename);                 // 生成文檔對(duì)象
			Element root = doc.getRootElement();               // 獲取根節(jié)點(diǎn)
			String str1 = root.getAttributeValue("comment");   // 獲取根節(jié)點(diǎn)的comment屬性
			System.out.println("根節(jié)點(diǎn)說(shuō)明 : " + str1);
			
			String str2 = root.getChild("Listener").getAttributeValue("className"); // 獲取Listner節(jié)點(diǎn)的className屬性
			System.out.println("Listener 節(jié)點(diǎn) className 屬性 : " + str2);
			String str3 = root.getChild("Service").getAttributeValue("name");       // 獲取Service節(jié)點(diǎn)的name屬性
			System.out.println("Service  節(jié)點(diǎn)  Name     屬性 : " + str3);

			XMLOutputter xmlOut = new XMLOutputter(Format.getPrettyFormat());       // 生成XML的輸出對(duì)象 
			String outStr = xmlOut.outputString(root);        // 輸出根節(jié)點(diǎn)內(nèi)容字符串          
			System.out.println("");			
			System.out.println(outStr);                       // 輸出根節(jié)點(diǎn)內(nèi)容
			return outStr;
			
	    }catch(Exception e)
	    {
	        e.printStackTrace();
	        return "";
	    }
	}
	
	 public static void main(String[] args){
		 getXMLContent("D:\\workshop\\docs\\server.xml");
	}
}