liferay 5.2.3, tomcat 6.0, liferay plugins sdk, liferay portal, webpage liferay, liferay portal suggesion, jsp, javax.portlet, import, theme display, Liferay portal kernel, class

Liferay Plugin Development training

Liferay Plugins sdk
 
Liferay Version 5.2.3 and  Tomcat  6.0 Tutorial

Liferay portlet tutorial


Liferay classes 

Liferay portal kernel.

 I need help in liferay portlet development




Samw :           With liferay 5.2.3, tomcat 6.0 and liferay plugins sdk, after deployed the portlet onto liferay portal, adding the portlet onto the webpage causes the following exceptions:

           

            

           

            Since portal-impl.jar can't be used in plugins development, should I copy some of the classes from portal-impl.jar into my current working directory and recompile it? or I have to use Hook on to it? I think Hook is a way to go, however your mileage may vary.

           

            Very appreciate for any suggestion and help in liferay portlet development tutorial.

           

            Thanks

           

            Sam

           

Mazhar Anwar            :           Hi Sam,

           

            Have you imported Portlet Preferences class in your jsp?

           

            add the following line in init.jsp.

           

            <%@ page import="javax.portlet.PortletPreferences" %>

           

            Hope it will solve your problem.

           

Sam w :          Hi Mazhar,

           

            How have you been? Hope you are well.

           

            Thanks a great help in liferay portlet development. You solved my trouble again. 

           

            What about the following errors:

           

            

           

            Very appreciate for your help in liferay tutorial.

           

            Thanks

           

            Sam

           

Mazhar Anwar            :           Hi Sam,

           

            I am doing good, Thanks 

           

            For your issues,

           

            You can use either liferay tag for theme or instantiate themeDisplay Object manually.

           

                        That is use

<liferay-theme:defineObjects />

           

            OR

           

            ThemeDisplay themeDisplay =(ThemeDisplay)renderRequest.getAttribute(WebKeys.THEME_DISPLAY);

           

            Use of Liferay Tag will be better as it will initialize all the objects and then you can directly use themeDisplay object anywhere in your jsp.

           

            You can remove "ThemeDisplay themeDisplay =(ThemeDisplay)renderRequest.getAttribute(WebKeys.THEME_DISPLAY);" from your code.

           

                        And if you want to use the above line you need to import following class in your init.jsp.

<%@ page import="com.liferay.portal.kernel.util.WebKeys" %>

           

                        For the second error, it seems you have not set currentURL String and using it.

You can replace the currentURL with "themeDisplay.getURLCurrent()".

           

            HTH 

           

Sam w :          Hi Mazhar,

           

            With this problem, I got a new error after included PortletPreferences and RenderRequest class in the ini.jsp file:

           

            Here is the the first few lines of the ini.jsp file:

           

            

           

            Any idea?

           

            Thank you very much.

           

            Sam.

           

Sam w             :           I've got all these resolved.

thanks for the great help all liferay developers.

           

            Sam