Jul 09
9

Hello Struts2 Portlet

I’ve just completed a sample portlet using the new Struts 2 framework. Struts 2 is a really elegant, comprehensive framework that is much easier to use than Struts 1.x. What’s more is that Struts 2 works hand-in-hand with Spring so there’s a lot support built-in for it.

This sample portlet demonstrates using the new Struts form mechanism and shows how dependency injection comes naturally for Struts 2 actions. Take a look at the screencast to see what this new portlet does.

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This entry was posted on July 9, 2009 at 2:00 pm. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

Posted in Annoucements by Jeff Robinson 6 Comments

6 Responses to "Hello Struts2 Portlet"

  • Richard Perez says:
    July 21, 2009 at 8:05 am

    Hello Jeff. First of all thanks for your great work.

    I wanted to contact you because I’m having an issue with your struts sample portlets for Liferay.

    I can deploy them smoothly, but when I shutdown and restart my server, I get the following error:

    GRAVE: Portal class loader is not available to override the default Catalina web class loader

    And a failure to start context [/hellostruts2-portlet] because of previous errors.

    Any idea?

    Thanks is advance.

  • Jeff Robinson says:
    July 21, 2009 at 2:13 pm

    Richard:

    Thanks for your inquiry. First, can you tell me what server are you using (JBoss, Tomcat, etc.)?

    At first glance, the error seems to indicate a problem in your class loader file. The default one for Tomcat/Liferay is found in the META-INF folder in the war file in the context.xml file. In the zip file from my site, its currently set as:


    <context>
    <loader loaderClass="com.liferay.support.tomcat.loader.PortalClassLoader"
    />
    </context>

    Depending on your Liferay portal configuration, you should change this to use a class loader supported by your server.

  • DatNt says:
    December 7, 2009 at 10:56 pm

    Hi

    I have deployed your struts-portlet example code on Liferay-Tomcat smoothly. But the problem occurs when I deployed your example on Liferay-Glassfish.

    I haved tried many times, would you please check your code for Liferay(5.2.3)-Glassfish and suggest me.

    Thank you for your support.

  • Mohamed says:
    March 3, 2010 at 7:13 am

    Hi Jeff,
    I have errors when i deployed the Hello struts portlet on Liferay JBoss5.2.3.
    what is the loaderClass for jboss?
    thanks in advance

  • Jeff Robinson says:
    March 3, 2010 at 8:37 am

    Mohamed:

    I am unaware that JBOss even requires a class loader. Try removing the context.xml file altogether to see if that resolves your problem. If not, the you may need to consult the JBoss forums for further
    information.

  • Mohamed says:
    March 4, 2010 at 3:11 am

    Jeff,
    Thank you for response.
    It doesn’t resolve the problem.

    I follow this wiki (http://www.liferay.com/web/guest/community/wiki/-/wiki/Main/How%20to%20access%20the%20full%20Liferay%20API%20from%20a%20portlet%20application
    ) and I have same result.
    I think the problem is the liferay doesn’t load the liferay libs