Question

这是我的登录代码。我的代码运行正常，直到它到达需要将屏幕切换到我的主页的部分。显示＆＃34;您已登录！＆＃34;消息它结束了程序。有任何想法吗？我正在使用NetBeans 7.3.1

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
    boolean valid = false;

    String user = txtUser.getText();

    String pass = txtPass.getText();



    try {

        Scanner sc = new Scanner(new File("file.txt"));

        while(sc.hasNextLine()){

            String[] line = sc.nextLine().split("#");                

            if(line[0].equals(user) && line[1].equals(pass)){

                valid = true;

            }

        }        

    } catch (FileNotFoundException ex) {}



    if(valid == true){
        JOptionPane.showMessageDialog(null, "You are now logged in!");
        System.out.println("You are a user!");
        //Doesn't run
        HomePage adm = new HomePage();
        adm.setVisible(true);
        this.dispose();

    }else{
        JOptionPane.showMessageDialog(null, "Your username or password is incorrect!");
    }

Answer 1

检查您在 this.dispose（）中正确处理的内容。您可能正在处理JFrame或包含其余UI组件的其他组件

Gui在登录代码后崩溃

1 个答案: