Swing 實現超連結 開啟網頁
阿新 • • 發佈：2019-02-04
1、建立一個超連結的JLabel，// 主要是使用下面方法，僅適用於JdK1.6及以上版本
Desktop.getDesktop().browse(
new URL("http://www.baidu.com").toURI());
import java.awt.Cursor; import java.awt.Desktop; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; public class LinkLabel extends JLabel { private String text, url; private boolean isSupported; public LinkLabel(String text, String url) { this.text = text; this.url = url; try { this.isSupported = Desktop.isDesktopSupported() && Desktop.getDesktop().isSupported(Desktop.Action.BROWSE); } catch (Exception e) { this.isSupported = false; } setText(false); addMouseListener(new MouseAdapter() { public void mouseEntered(MouseEvent e) { setText(isSupported); if (isSupported) setCursor(new Cursor(Cursor.HAND_CURSOR)); } public void mouseExited(MouseEvent e) { setText(false); } public void mouseClicked(MouseEvent e) { try { Desktop.getDesktop().browse( new java.net.URI(LinkLabel.this.url)); } catch (Exception ex) { } } }); } private void setText(boolean b) { if (!b) setText("<html><font color=blue><u>" + text); else setText("<html><font color=red><u>" + text); } public static void main(String[] args) { JFrame jf = new JFrame("一個超連結實現的例子"); JPanel jp = new JPanel(); jp.add(new LinkLabel("訪問eRedLab", "http://hi.baidu.com/eRedLab")); jf.setContentPane(jp); jf.pack(); jf.setVisible(true); } }
2、 使用Runtime.getRuntime().exec
import java.awt.*; import javax.swing.*; import java.awt.event.*; import java.io.*; class JButtonDemo { JFrame mainFrame; JButton simpleButton; public JButtonDemo() { mainFrame = new JFrame("JButtonDemo"); simpleButton = new JButton("百度搜索"); mainFrame.getContentPane().add(simpleButton); simpleButton.addActionListener(new ActionListener() {// 新增動作偵聽器,當按鈕被按下時執行這裡的程式碼以開啟網頁 public void actionPerformed(ActionEvent e) { try { Runtime.getRuntime() .exec("cmd /c start http://www.baidu.com"); } catch (IOException ee) { ee.printStackTrace(); } } }); simpleButton.setCursor(new Cursor(Cursor.HAND_CURSOR)); mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); mainFrame.pack(); mainFrame.setLocationRelativeTo(null); mainFrame.setVisible(true); } public static void main(String[] args) { new JButtonDemo(); } }