您可以使用与defaultPreferences相同的标记中可用的属性

You can use a attribute available in same tag as defaultPreferences

<%
StringBundler sb = new StringBundler();
sb.append("<portlet-preferences >");
sb.append("<preference>");
sb.append("<name>");
sb.append("portletSetupShowBorders");
sb.append("</name>");
sb.append("<value>");
sb.append("false");
sb.append("</value>");
sb.append("</preference>");
sb.append("</portlet-preferences>");
%>


<liferay-portlet:runtime portletName="customSocialNotifications_WAR"  defaultPreferences="<%=sb.toString()%>"/>