如何通过代码添加嵌套portlet(liferay)

Question

我们在 liferay 中有一个叫做嵌套 portlet 的东西。我想通过代码动态添加此 portlet。有谁知道添加嵌套 portlet 并在其中添加其他 portlet 的代码吗？

谢谢 ！！！

Answer 1

对于完整的示例，我假设您想要使用另一个 portlet 操作处理程序将嵌套 portlet 添加到当前页面。 （如果在渲染操作中使用，则在页面的下一个视图之前您不会看到嵌套的 portlet）

将这些方法添加到您的代码中

private static String addPortlet(final long p_userId, final Layout p_layout, final String p_portletId, final String p_columnId, final int p_position, final boolean p_checkPermission)
                throws PortalException, SystemException
{
    if (p_layout.isTypePortlet()) {
        final LayoutTypePortlet layoutTypePortlet = (LayoutTypePortlet) p_layout.getLayoutType();

        final String portletId = layoutTypePortlet.addPortletId(p_userId, p_portletId, p_columnId, p_position, p_checkPermission);
        if (portletId != null) {
            final String rootPortletId = PortletConstants.getRootPortletId(portletId);
            final String portletPrimaryKey = PortletPermissionUtil.getPrimaryKey(p_layout.getPlid(), portletId);
            ResourceLocalServiceUtil.addResources(p_layout.getCompanyId(), p_layout.getGroupId(), 0, rootPortletId, portletPrimaryKey, true, true, true);
            LayoutLocalServiceUtil.updateLayout(p_layout.getGroupId(), p_layout.isPrivateLayout(), p_layout.getLayoutId(), p_layout.getTypeSettings());
        }
        return portletId;
    }

    return null;
}

private static void addNestedPortlet(final PortletRequest p_request) throws PortalException, SystemException {
    final ThemeDisplay themeDisplay = (ThemeDisplay) p_request.getAttribute(WebKeys.THEME_DISPLAY);
    final Layout layout = themeDisplay.getLayout();
    long userId = themeDisplay.getUserId();

    //create nested portlet and add it to "column-1"
    final String nestedPortletId = addPortlet(userId, layout, "118", "column-1", -1, false);

    //this will be used to target nested portlet's columns
    final String nestedColumnPrefix = "_" + nestedPortletId + "__";

    //default page layout (used by nested portlet) has two columns
    //we'll add two portlets (in this example two iframe portlets), one portlet to each column
    addPortlet(userId, layout, "48", nestedColumnPrefix + "column-1", -1, false);
    addPortlet(userId, layout, "48", nestedColumnPrefix + "column-2", -1, false);
}

如果您愿意（而且可能愿意）将嵌套 portlet 添加到另一个页面或不从 portlet 添加嵌套 portlet，您可以查找 Layout 和 User，而不是从 ThemeDisplay 获取它们。