Archive for the ‘java’ Category

create a swing application

Friday, September 11th, 2009
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import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
 
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JApplet;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.WindowConstants;
 
public class Test3 extends JApplet {
 
	public void init() {
		Container contentPane = getContentPane();
 
		Icon icon = new ImageIcon(ClassLoader.getSystemResource("swing.gif")); 
		JLabel label = new JLabel(icon);
//		java.net.URL codebase = getClass().getResource("../swing.gif");
//		JLabel label = new JLabel(new ImageIcon(codebase));
 
		contentPane.setLayout(new FlowLayout());
		contentPane.add(label);
	}
 
	public static void main(String args[]) {
		final JFrame f = new JFrame();
		JApplet applet = new Test3();
 
		applet.init();
 
		f.setContentPane(applet.getContentPane());
		f.setBounds(100, 100, 308, 199);
		f.setTitle("An Application");
		f.setVisible(true);
 
		f.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
 
		f.addWindowListener(new WindowAdapter() {
			public void windowClosed(WindowEvent e) {
				System.exit(0);
			}
		});
	}
}

how to read a url

Tuesday, September 1st, 2009
String s = request.getRequestURL().toString();
URL url = new URL(s);
BufferedReader bf = new BufferedReader(new InputStreamReader(url.openStream()));

how to build .properties

Thursday, July 2nd, 2009
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if (null == transactionCodeConfig) {
	transactionCodeConfig = new Properties();
	transactionCodeConfig.load(Obj2XMLBuilderXSD.class
			.getResourceAsStream("/config/transactionCodeConfig.properties"));
	xsdMap = new HashMap();
	for (Iterator iterator = transactionCodeConfig.entrySet().iterator(); iterator.hasNext();) {
		Entry entry = (Entry) iterator.next();
		BufferedReader br = new BufferedReader(new InputStreamReader(
				Obj2XMLBuilderXSD.class.getResourceAsStream("/config/xsd/" + entry.getValue())));
		String aLine;
		StringBuffer xsdContent = new StringBuffer("");
		aLine = br.readLine();
		while (null != aLine) {
			xsdContent.append(aLine);
			aLine = br.readLine();
		}
		br.close();
		xsdMap.put(entry.getKey(), xsdContent.toString());
	}
}