public Register(){
JFrame regster =new JFrame("登陆"); //新建窗口
regster.addNotify(); // 连接到屏幕
regster.setVisible(true); // 显示窗口
regster.setSize(400, 300); //设置窗口大小
regster.setLocationRelativeTo(null); //窗口居中
regster.setDefaultCloseOperation(regster.EXIT_ON_CLOSE);//关闭窗口关闭程序
Container container=new Container();// 容器
container=regster.getContentPane(); // 内容返回 容器中
container.setLayout(null); // 为空
JLabel user=new JLabel("用户名："); //用户字体
JPanel userPanel=new JPanel(); // 仪表板
userPanel.add(user); // 用户 显示
userPanel.setBounds(40, 50, 60,20);
container.add(userPanel);
//用户 输入框
JTextField userFrame =new JTextField();
userFrame.setBounds(100, 50, 130, 20);
JLabel userprompt=new JLabel("请输入用户名 ");
FocusListener focusm=new focus(userFrame, userprompt); // 焦点
userFrame.addFocusListener(focusm); // 焦点监视
container.add(userFrame);
// 用户 提示
JPanel userpromptPanel=new JPanel();
userpromptPanel.add(userprompt);
userpromptPanel.setBounds(240, 50, 100, 20);
container.add(userpromptPanel);
//密码
JLabel password=new JLabel("密 码：");
JPanel passwordPanel=new JPanel();
passwordPanel.setBounds(40, 100, 60, 20);
passwordPanel.add(password);
container.add(passwordPanel);
// 密码输入框
JPasswordField passwordFrame =new JPasswordField();
passwordFrame.setBounds(100, 100, 130, 20);
//密码 提示
JLabel passwordprompt=new JLabel("请输入密码 ");
FocusListener focusm2=new focus2(passwordFrame, passwordprompt); // 焦点
passwordFrame.addFocusListener(focusm2); //焦点监视
container.add(passwordFrame);
// 密码放入
JPanel passwordpromptPanel=new JPanel();
passwordpromptPanel.add(passwordprompt);
passwordpromptPanel.setBounds(240, 100, 100, 20);
container.add(passwordpromptPanel);
//鼠标监视 创建
MouseListener mouse=new Mouse(userFrame,passwordFrame);
//按钮 确定
JButton confirm=new JButton("确定");
confirm.addMouseListener(mouse); // 鼠标监视
confirm.setBounds(50, 230, 60, 30);
container.add(confirm);
// 取消
JButton cancel=new JButton("取消");
cancel.setBounds(200, 230, 60, 30);
container.add(cancel);
}
// 焦点监视 用户
class focus extends FocusRegulator{
private JTextField userFrame; //用户输入框
private JLabel userprompt; //用户提示
public focus(JTextField userFrame,JLabel userprompt){
this.userFrame=userFrame;
this.userprompt=userprompt;
}
@Override
public void focusLost(FocusEvent e) {
// TODO Auto-generated method stub
if(userFrame.getText().length()>5&&userFrame.getText().length()<19){
if(Pattern.matches("[a-zA-Z]*", userFrame.getText().toString())){
System.out.println("符合要求");
userprompt.setText("符合要求");
}else{
userprompt.setText("不能有数字");
System.out.println("不能有数字");
}
}else{
userprompt.setText("请输入8-16位数");
System.out.println("请输入8-16位数");
}
System.out.println(userFrame.getText());
super.focusLost(e);
}
}
// 密码焦点监视
class focus2 extends FocusRegulator{
private JPasswordField passwordFrame; //密码输入框
private JLabel passwordprompt; //密码提示
public focus2(JPasswordField passwordFrame,JLabel passwordprompt){
this.passwordFrame=passwordFrame;
this.passwordprompt=passwordprompt;
}
@Override
public void focusLost(FocusEvent e) {
// TODO Auto-generated method stub
if(passwordFrame.getText().length()>5&&passwordFrame.getText().length()<19){
if(Pattern.matches("[0-9]*", passwordFrame.getText().toString())){
System.out.println("符合要求");
passwordprompt.setText("符合要求");
}else{
passwordprompt.setText("必须全为数字");
System.out.println("必须全为数字");
}
}else{
passwordprompt.setText("请输入8-16位数");
System.out.println("请输入8-16位数");
}
System.out.println(passwordFrame.getText());
super.focusLost(e);
}
}
// 鼠标监视
class Mouse extends MouseRegulator{
private JTextField userFrame; //用户名
private JPasswordField passwordFrame; // 密码
public Mouse(JTextField userFrame,JPasswordField passwordFrame){
this.userFrame=userFrame;
this.passwordFrame=passwordFrame;
}
@Override
public void mouseClicked(MouseEvent e) {
// TODO Auto-generated method stub
if(userFrame.getText().equals("zhangsan")&&
passwordFrame.getText().equals("88888888")){
new StudentInterface();
}
if(userFrame.getText().equals("laowang")&&
passwordFrame.getText().equals("88888888")){
new TeacherInterface();
}
super.mouseClicked(e);
}
}
public static void main(String[] args) {
new Register();
}
}