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我試圖在liferay上添加一個新的IFrame portlet，點擊鏈接。我已經在一些問題上實現了它。在Liferay頁面重新加載期間添加Portlet實例
首先，我使用Liferay的SDK創建一個portlet和定製的默認view.jsp：
<portlet:renderURL var="pageDisp">
<portlet:param name="jspPage" value="/view.jsp" />
</portlet:renderURL>
<a href="<%=pageDisp%>&clink=g">Google</a> <br />
<a href="<%=pageDisp%>&clink=y">Yahoo</a> <br />
<a href="<%=pageDisp%>&clink=d">Daily Tech</a> <br />
<a href="<%=pageDisp%>&clink=w">Wired</a> <br />
改變portlet.xml從
<portlet-class>com.liferay.util.bridges.mvc.MVCPortlet</portlet-class>
到
<portlet-class>test.LinksPortlet</portlet-class>
我已經實現後續在LinksPortlet荷蘭國際集團代碼：
public void render(RenderRequest request, RenderResponse response) throws PortletException, java.io.IOException {
log("LinksPortlet:render");
try {
ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(com.liferay.portal.kernel.util.WebKeys.THEME_DISPLAY);
LayoutTypePortlet layoutTypePortlet = themeDisplay.getLayoutTypePortlet();
List<Portlet> portletList = layoutTypePortlet.getPortlets();
for(Portlet p : portletList) {
log(p.getPortletId());
log(p);
log(p.getDisplayName());
log(p.getInitParams());
}
String c = request.getParameter("clink");
log(c);
if(c != null && (c.equals("g") || c.equals("y") || c.equals("d") || c.equals("w"))) {
String portletId = layoutTypePortlet.addPortletId(Long.parseLong(request.getRemoteUser()), PortletKeys.IFRAME, "column-2", -1);
log("portletId: "+portletId);
long companyId = themeDisplay.getCompanyId();
long ownerId = PortletKeys.PREFS_OWNER_ID_DEFAULT;
int ownerType = PortletKeys.PREFS_OWNER_TYPE_LAYOUT;
Layout layout = themeDisplay.getLayout();
PortletPreferences prefs = PortletPreferencesLocalServiceUtil.getPreferences(companyId, ownerId, ownerType, layout.getPlid(), portletId);
Locale locale = new Locale("en", "US");
prefs.setValue("portlet-setup-use-custom-title", "true");
if(c.equals("g")) {
prefs.setValue("src","http://www.google.com");
prefs.setValue("portlet-setup-title-" + LocaleUtil.toLanguageId(locale), "Google");
}
else if(c.equals("y")) {
prefs.setValue("src","http://www.yahoo.com");
prefs.setValue("portlet-setup-title-" + LocaleUtil.toLanguageId(locale), "Yahoo");
}
else if(c.equals("d")) {
prefs.setValue("src", "http://www.dailytech.com");
prefs.setValue("portlet-setup-title-" + LocaleUtil.toLanguageId(locale), "Daily Tech");
}
else if(c.equals("w")) {
prefs.setValue("src", "http://www.wired.com");
prefs.setValue("portlet-setup-title-" + LocaleUtil.toLanguageId(locale), "Wired");
}
PortletPreferencesLocalServiceUtil.updatePreferences(ownerId, ownerType, layout.getPlid(), portletId, prefs);
portletList = layoutTypePortlet.getPortlets();
for(Portlet p : portletList) {
if(p.getPortletId().equals(portletId)) {
break;
}
}
LayoutLocalServiceUtil.updateLayout(layout.getGroupId(), layout.isPrivateLayout(), layout.getLayoutId(), layout.getTypeSettings());
}
}
catch(Exception e) {
log("LinksPortlet:doView:Exception");
e.printStackTrace();
}
super.render(request, response);
}
與上述實施的問題是，在重新加載頁面後，屏幕上出現了新的portlet： http://www.go-ahead.in/books/1.JPG http://www.go-ahead.in/books/2.JPG http://www.go-ahead.in/books/3.JPG
的原因的問題是，新的portlet在佈局渲染開始後添加。是否可以自定義或添加一個鉤子來執行我在頁面/佈局加載期間執行的操作。我遇到了添加portlet的liferay的源代碼LayoutAction.java。有沒有辦法添加一個post鉤子來添加portlet而不修改liferay的源代碼？
我使用的是Liferay 6.0.5。
在此先感謝。