Java 如何仅在成功登录后连接到另一个JFrame

我已经创建了一个登录页面，只想在成功登录后将其链接到另一个Jframe

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         

   if(jTextField1.getText().length()==0)
       JOptionPane.showMessageDialog(null,"insert username");
   else if(jPasswordField1.getPassword().length==0)
       JOptionPane.showMessageDialog(null,"insert password");
   else{
       String user = jTextField1.getText();
       char[] pass = jPasswordField1.getPassword();
       String pwd = String.copyValueOf(pass);
       if(validate_login(user,pwd))
           JOptionPane.showMessageDialog(null,"Correct User");
       else
           JOptionPane.showMessageDialog(null, "Incorrect User or Password!");
   }
} 

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我希望有一行代码将我带到一个新的JFrame

好吧，只需创建一个

JFrame

对象并设置其基本属性：

 JFrame frame = new JFrame("your title");
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 //Create components and put them in the frame.
 frame.getContentPane().add(/* ... */);
 //Size the frame.
 frame.pack();
 //Show
 frame.setVisible(true);

现在由您决定如何处理原始窗口。如果要关闭它，请执行以下操作：

 //suppose "origFrame" is your original JFframe
 origFrame.dispatchEvent(new WindowEvent(frame, WindowEvent.WINDOW_CLOSING));