如何通過代碼添加嵌套的portlet（liferay）

Question

我們在liferay中有一些名爲嵌套的portlet。我想通過代碼動態添加這個portlet。有誰知道添加嵌套portlet的代碼，並在其中添加其他portlet嗎？

謝謝！

Answer 1

完整的例子我假設你想要使用另一個portlet動作處理程序將嵌套的portlet添加到當前頁面。 （如果從使用的渲染動作，你不會看到嵌套的Portlet，直到頁面的下一個視圖）

將這些方法添加到您的代碼

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); 
} 

如果你想，很可能你會，加嵌套portlet到另一個頁面或不從portlet，您可以查找佈局和用戶，而不是從ThemeDisplay獲取它們。