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https://issues.apache.org/struts/browse/WW-2897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=45064#action_45064
]
careprad commented on WW-2897:
------------------------------
we have resolved this problem,the root cause is the StrutsTilesListener,we have
retrotranslate all the relevant library files,but the StrutsTilesListener did
not work,so we change the code by ourself,this is the class:
public class MyStrutsTilesListener implements ServletContextListener
{
/**
* Log instance.
*/
protected static final Log LOG =
LogFactory.getLog(MyStrutsTilesListener.class);
private static final Map INIT;
static
{
INIT = new HashMap();
INIT.put(TilesContainerFactory.CONTAINER_FACTORY_INIT_PARAM,
StrutsTilesContainerFactory.class.getName());
}
/**
* Initialize the TilesContainer and place it
* into service.
*
* @param event The intercepted event.
*/
public void contextInitialized(ServletContextEvent event)
{
ServletContext servletContext = event.getServletContext();
try
{
TilesContainer container = createContainer(servletContext);
TilesAccess.setContainer(servletContext, container);
}
catch (TilesException e)
{
throw new IllegalStateException("Unable to instantiate container.");
}
}
/**
* Remove the tiles container from service.
*
* @param event The intercepted event.
*/
public void contextDestroyed(ServletContextEvent event) {
ServletContext servletContext = event.getServletContext();
try
{
TilesAccess.setContainer(servletContext, null);
}
catch (TilesException e) {
LOG.warn("Unable to remove tiles container from service.");
}
}
/**
* Creates a Tiles container.
*
* @param context The servlet context to use.
* @return The created container
* @throws TilesException If something goes wrong during creation.
*/
protected TilesContainer createContainer(ServletContext context)
throws TilesException
{
if(context.getInitParameter(TilesContainerFactory.CONTEXT_FACTORY_INIT_PARAM)
== null) {
context = decorate(context);
}
else
{
LOG.warn("Tiles container factory is explicitly set. Not injecting
struts configuration.");
}
TilesContainerFactory factory =
TilesContainerFactory.getFactory(context);
return factory.createContainer(context);
}
protected ServletContext decorate(ServletContext context)
{
return new ConfiguredServletContext(context, INIT);
}
}
as you see,there is no other code,but it just work,we still did not know how it
can do it!!
I must to point out our environment is wsad5,so its jdk is 14 implemented by
ibm,we retrotranslate the jar file with classpath=%wasruntime%/core.jar.I
think this is the right way.
But this problem cost our 2 days to resolve it.I am disappointed to the
struts2(this problem is one of the reason but not the only!).
> org.apache.struts2.tiles.StrutsTilesListener do not work
> --------------------------------------------------------
>
> Key: WW-2897
> URL: https://issues.apache.org/struts/browse/WW-2897
> Project: Struts 2
> Issue Type: Bug
> Components: Plugin - Tiles
> Affects Versions: 2.0.11.2
> Environment: websphere6.0 (jdk1.42),all the referenced jar is in the
> struts-2.0.11.2-all.zip downloaded from the official site.
> Reporter: careprad
> Priority: Blocker
>
> first of all,the reason is the exception on ServletDispatcherResult.doExecute:
> setLocation(location);
> javax.servlet.ServletContext servletContext =
> ServletActionContext.getServletContext();
> TilesContainer container =
> TilesAccess.getContainer(servletContext); //here get null
> container
> javax.servlet.http.HttpServletRequest request =
> ServletActionContext.getRequest();
> javax.servlet.http.HttpServletResponse response =
> ServletActionContext.getResponse();
> container.render(location, new Object[] {request, response});
> //here will throw the null pointer exception
> I traced the exception in the StrutsTilesListener ,it do not work at all,I
> suppose it is the static initialize method work in error:
> INIT.put(
> "org.apache.tiles.factory.TilesContainerFactory",
>
> (class$org$apache$struts2$tiles$StrutsTilesContainerFactory == null
> &&
> (class$org$apache$struts2$tiles$StrutsTilesContainerFactory =
> (new
> StrutsTilesContainerFactory[0]).getClass().getComponentType())
> == null
> ?
> class$org$apache$struts2$tiles$StrutsTilesContainerFactory
> :
> class$org$apache$struts2$tiles$StrutsTilesContainerFactory)
> .getName());
> this code is what I can't understand!and How can I get the source code of the
> pluggin?
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