javaSwing利用多線程制作登錄窗體

1、利用多線程制作登錄窗體      import javax.swing.*;import java.awt.*;import java.awt.event.*;public class LoginForm extends JFrame implementsRunnable,ActionListener/創(chuàng)建面板 panelMain panelLeft, panelRight panelRightTop , panelRightBottomprivate JPanel panelMain ,panelLeft , panelRight , panelRig

2、htTop , panelRightBottom ;/顯示圖標(biāo)的 JLabelprivate JLabel labImage ;/聲明用戶名與密碼文本框private JTextField userName ;private JPasswordField password ;/聲明用戶名與密碼提示標(biāo)簽 JLabelprivate JLabel labUserName ;private JLabel labPassword ;/聲明按鈕private JButton btnLogin , btnQuit ;/聲明進度條 , 取值范圍為 1,30private JProgressBar progr

3、ess ;/聲明多線程組件Threadthread ;public LoginForm(super (;this .initForm(;private void initForm(/初如化 LoginFormthis .setSize(350, 220;this .setTitle(" 系統(tǒng)登錄 " ;this .setResizable(false ;this .setLocationRelativeTo(null ;this .setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE;/初始化面板panelMain =new JPane

4、l(new GridLayout(1,2;panelLeft =new JPanel(; /加到 panelMain 的左側(cè)panelRight =new JPanel(new GridLayout(2,1;/加到 panelMain 的右側(cè) panelRightTop =new JPanel(;/加到 panelMain 的右上側(cè)panelRightBottom =new JPanel(new GridLayout(3,2;/加到 panelMain 的 右下側(cè)/初始化 Label和文本框this . userName =new JTextField(;this . password =ne

5、w JPasswordField(;this . labUserName =new JLabel(" 用 戶 : ",JLabel. RIGHT ;this . labPassword =new JLabel(" 密 碼 : ",JLabel. RIGHT ;this . labUserName .setLabelFor(this . userName ;this . labPassword .setLabelFor(this . password ;/初始化按鈕this . btnLogin =new JButton(" 登錄 (L"

6、;this . btnLogin .setMnemonic('L' ;this . btnQuit =new JButton(" 退出 (Q"this . btnQuit .setMnemonic('Q' ;/設(shè)計默認(rèn)按鈕為 btnLoginthis .getRootPane(.setDefaultButton(btnLogin ;this . btnLogin .addActionListener(this ;this . btnQuit .addActionListener(this ;/初始一個圖像標(biāo)簽labImage =new JLa

7、bel(new ImageIcon("./Images/login.jpg"/初始化進度條this . progress =new JProgressBar(1,30;this . progress .setBorderPainted(false ;this . progress .setStringPainted(true ;this . progress .setString("" ;/將對應(yīng)的組件添加到面板中/1.將 img 添加到 panelLeft 中panelLeft .add(labImage ;panelRight .add(panelR

8、ightTop ;/標(biāo)簽 , 文本框與按鈕添加到面板中panelRightBottom .add(labUserName ;panelRightBottom .add(userName ;panelRightBottom .add(labPassword ;panelRightBottom .add(password ;panelRightBottom .add(btnLogin ;panelRightBottom .add(btnQuit ;panelRight .add(panelRightBottom ;panelMain .add(panelLeft ;panelMain .add(p

9、anelRight ;/將 panelMain 添加到 JFrame 中this .add(panelMain ;this .add(this . progress , BorderLayout.SOUTH ;/多線程thread =new Thread(this ;public void run( / TODO Auto-generated method stub/設(shè)置鼠標(biāo)形狀this .setCursor(Cursor.getPredefinedCursor (Cursor.WAIT_CURSOR;for (int i=0;i<30;i+try thread . sleep (100

10、; catch (InterruptedException e / TODO Auto-generated catch blocke.printStackTrace(;this . progress .setValue(i+1;if (i=0this . progress .setString(" 正在確認(rèn)用戶身份 ." ;else if (i=10this . progress .setString(" 正在讀取系統(tǒng)資料 ." ;else if (i=20this . progress .setString(" 正在資源初始化 ."

11、 ; /end of forMainFormmain=new MainForm(;main.setVisible(true ;this .dispose(;public void actionPerformed(ActionEvent e / TODO Auto-generated method stubif (e.getSource(=btnLogin /驗證用戶身份 , 此處硬編程實現(xiàn) , 以后可以調(diào)用 JavaBean 完成if (this . userName .getText(.equals("admin" &&String.valueOf (passwo rd .getPas