java - 关闭 GUI，但主程序应继续运行并打开一个新的

Question

我正在尝试实现以下目标:显示登录窗口，然后从工厂确定要打开的GUIclass(admin/dev/测试人员)。

我无法弹出第二个窗口；我尝试使用 dispose 来关闭程序，但不会将 main 运行到底。

主要:

public static void main(String[] args){
        LoginGui loginGuiWindow = null;
        DeveloperGui devGui = null;
        TesterGui tesGui = null;
        UserCntrl uc = new UserCntrl();
        try {
            loginGuiWindow = new LoginGui(uc);
        } catch (Exception e) {
            e.printStackTrace();
        }
        System.out.print("Checking instance of: ");
        if(loginGuiWindow.loggingResult > 0){
            System.out.print("Checking instance of: ");
            if (uc.user instanceof Developer) {
                System.out.println("is instanceOf developer");
                devGui = new DeveloperGui(uc);
            }
            if (uc.user instanceof Tester ) {
                System.out.println("is instanceOf tester");
                tesGui = new TesterGui(uc);
            }
        }
    }

LoginGui:

btnNewButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                int res;
                String nick = textUser.getText();
                String pass = textPassword.getText();
                if((res = uc.handleLogin(nick, pass)) > 0){
                    loggingResult = res;
                    uc.handleUi(res);
                    frame.setVisible(false);
                    frame.dispose();
                }
                else{
                    JOptionPane.showMessageDialog(frame,
                        "Wrong username or password.",
                        "Logging error",
                        JOptionPane.PLAIN_MESSAGE);
                }
            }
        });

Answer 1

当您显示窗口时，它不是阻塞调用，请在显示之前尝试 setModal(true)