如何在Liferay 7或Liferay DXP中获取屏幕名称

import com.liferay.portal.kernel.theme.ThemeDisplay;
import com.liferay.portal.kernel.util.WebKeys;
import com.liferay.portal.model.Layout;
import javax.servlet.http.HttpServletRequest;

// 获取HttpServletRequest对象
HttpServletRequest request = (HttpServletRequest) actionRequest.getHttpServletRequest();

// 通过HttpServletRequest对象获取ThemeDisplay对象
ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);

// 通过ThemeDisplay对象获取当前页面的布局对象Layout
Layout layout = themeDisplay.getLayout();

// 获取屏幕名称
String screenName = layout.getFriendlyURL();

System.out.println("屏幕名称：" + screenName);