请看FormScroller。它是一个简单的类，可以用来确保在使用Tab键切换到组件时组件是可见的。FormScroller可以与任何滚动窗格一起使用，并且不需要向表单上的每个组件添加FocusListener。
它提供了几个选项，允许您确实控制滚动的工作方式。

有两件事。
首先，JTextField#scrollRectToVisible被覆盖了，做了一些与其他组件略有不同的事情......很烦人......
其次，您需要转换字段相对于其父级的位置，然后使用父级的scrollRectToVisible方法，例如...

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Rectangle;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

public class ScrollFocusedField {

    public static void main(String[] args) {
        new ScrollFocusedField();
    }

    public ScrollFocusedField() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
                }

                FocusAdapter fh = new FocusAdapter() {

                    @Override
                    public void focusGained(FocusEvent e) {
                        JComponent comp = (JComponent) e.getComponent();
                        System.out.println("FocusGained");
                        Rectangle bounds = comp.getBounds();
                        bounds.setLocation(SwingUtilities.convertPoint(comp, bounds.getLocation(), comp.getParent()));

                        JComponent parent = (JComponent) comp.getParent();
                        parent.scrollRectToVisible(comp.getBounds());
                    }

                };

                JPanel panel = new JPanel(new GridBagLayout());
                GridBagConstraints gbc = new GridBagConstraints();
                for (int index = 0; index < 100; index++) {
                    gbc.fill = GridBagConstraints.NONE;
                    gbc.weightx = 0;
                    gbc.gridx = 0;
                    gbc.gridy = index;
                    panel.add(new JLabel(Integer.toString(index)), gbc);

                    JTextField field = new JTextField();
                    field.addFocusListener(fh);
                    gbc.fill = GridBagConstraints.HORIZONTAL;
                    gbc.weightx = 1;
                    gbc.gridx = 1;
                    panel.add(field, gbc);
                }

                JFrame frame = new JFrame("Testing");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.setLayout(new BorderLayout());
                frame.add(new JScrollPane(panel));
                frame.setSize(200, 400);
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);
            }
        });
    }

}

我用一个自定义的焦点遍历策略解决了这个问题，它 Package 了容器的原始遍历策略，并在请求下一个或上一个组件时对滚动请求进行排队：

private static class FocusTraversalPolicyAdapter extends FocusTraversalPolicy {
    FocusTraversalPolicy focusTraversalPolicy;

    FocusTraversalPolicyAdapter(FocusTraversalPolicy focusTraversalPolicy) {
        this.focusTraversalPolicy = focusTraversalPolicy;
    }

    @Override
    public Component getComponentAfter(Container container, Component component) {
        var nextComponent = focusTraversalPolicy.getComponentAfter(container, component);

        scrollToVisible(nextComponent);

        return nextComponent;
    }

    @Override
    public Component getComponentBefore(Container container, Component component) {
        var previousComponent = focusTraversalPolicy.getComponentBefore(container, component);

        scrollToVisible(previousComponent);

        return previousComponent;
    }

    @Override
    public Component getFirstComponent(Container container) {
        return focusTraversalPolicy.getFirstComponent(container);
    }

    @Override
    public Component getLastComponent(Container container) {
        return focusTraversalPolicy.getLastComponent(container);
    }

    @Override
    public Component getDefaultComponent(Container container) {
        return focusTraversalPolicy.getDefaultComponent(container);
    }

    void scrollToVisible(Component component) {
        var parent = component.getParent();

        if (parent instanceof JComponent) {
            SwingUtilities.invokeLater(() -> {
                ((JComponent)parent).scrollRectToVisible(SwingUtilities.convertRectangle(parent, component.getBounds(), parent));
            });
        }
    }
}

请注意，这依赖于现有行为，理论上将来可能会中断。

根据我之前的回答，一个更简单也可能更可靠的方法是定义一个自定义键盘焦点处理程序，每当组件接收到输入焦点时，管理器就会调度事件并将组件滚动到视图中：

public class ScrollingKeyboardFocusManager extends DefaultKeyboardFocusManager {
    @Override
    public boolean dispatchEvent(AWTEvent event) {
        var dispatched = super.dispatchEvent(event);

        if (dispatched && event.getID() == FocusEvent.FOCUS_GAINED) {
            var component = (Component)event.getSource();
            var parent = component.getParent();

            if (parent instanceof JComponent) {
                ((JComponent)parent).scrollRectToVisible(SwingUtilities.convertRectangle(parent, component.getBounds(), parent));
            }
        }

        return dispatched;
    }
}

焦点管理器可按如下方式安装：

KeyboardFocusManager.setCurrentKeyboardFocusManager(new ScrollingKeyboardFocusManager());