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import java.awt.Cursor;<br /> import java.awt.FlowLayout;<br /> import java.awt.event.MouseAdapter;<br /> import java.awt.event.MouseEvent;<br /> import java.io.IOException;<br /> import javax.swing.JFrame;<br /> import javax.swing.JLabel; </p> <p>/**<br /> * 超链接按钮。<br /> *<br /> * @author Elvis<br /> */<br /> public class LinkButton extends JLabel {<br /> private static final long serialVersionUID = 1L;<br /> private String text;<br /> private Cursor handCursor = new Cursor(Cursor.HAND_CURSOR); //建立一个光标为手指类型的鼠标</p> <p> public LinkButton() {<br /> addMouseListener(new MouseAdapter() {<br /> public void mouseClicked(MouseEvent e) {<br /> Runtime rt = Runtime.getRuntime();<br /> try {<br /> String cmd = "rundll32 url.dll,FileProtocolHandler http://ice.kane.blog.163.com";<br /> rt.exec(cmd);<br /> } catch (IOException e1) {<br /> e1.printStackTrace();<br /> }<br /> setClickedText();<br /> } </p> <p> //鼠标移入标签时,设置文本样式事件<br /> public void mouseEntered(MouseEvent e) {<br /> setHandCursor();<br /> setMoveInText();<br /> } </p> <p> //鼠标移出标签时,设置文本样式事件<br /> public void mouseExited(MouseEvent e) {<br /> setDefaultCursor();<br /> setMoveOutText();<br /> }<br /> });<br /> } </p> <p> //设置初始样式<br /> public void setText(String text) {<br /> String content = "<html><font color=blue>" + text + "</font></html>";<br /> this.text = text;<br /> super.setText(content);<br /> } </p> <p> //设置鼠标单击样式<br /> private void setClickedText() {<br /> String content = "<html><font color=green><u>" + text + "</u></font></html>";<br /> super.setText(content);<br /> } </p> <p>//设置鼠标移入样式<br /> private void setMoveInText(){<br /> String content="<html><font color=red><u>"+text+"</u></font></html>";<br /> super.setText(content);<br /> }</p> <p>//设置鼠标移出样式<br /> private void setMoveOutText(){<br /> String content="<html><font color=blue>"+text+"</font></html>";<br /> super.setText(content);<br /> }</p> <p> //设置光标为手指<br /> private void setHandCursor() {<br /> this.setCursor(handCursor);<br /> }<br /> //设置光标为默认<br /> private void setDefaultCursor() {<br /> this.setCursor(null);<br /> }<br /> public static void main(String[] args) {<br /> JFrame f = new JFrame();<br /> f.setSize(400, 400);<br /> f.setLayout(new FlowLayout());<br /> LinkButton btn = new LinkButton();<br /> btn.setText("注册帐号");<br /> f.add(btn);<br /> f.setVisible(true);<br /> f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);<br /> }<br /> }
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