Spring MVC portlet actionmapping redirect (avoid rendermapping)

[iv4l]

Hi all, I am trying to solve this problem:

I got a portlet with different method

main method is a rendermapping

@RenderMapping
	public String showMovies(RenderRequest request, RenderResponse response, Model model) throws IOException{
            model.addAttribute("movies",movieService.getAll());
            return "movies/index"

}
in my index.jsp i got a renderurl to

@RenderMapping(params={"action=showAddMovieForm"})
	public String addMovieForm(RenderRequest request, RenderResponse response, Model model) throws IOException{
		System.out.println("method: " + new Object(){}.getClass().getEnclosingMethod().getName());
		model.addAttribute("movie", new Movie());
		return "movies/showAddMovieForm";
	}

and the relative showAddMovieForm.jsp

        // CUT  ...
	<portlet:renderURL var="addMovieUrl" escapeXml="false">
			<portlet:param name="action" value="addMovie" /> 
		</portlet:renderURL > 

		<form:form modelAttribute="movie" method="POST" action="${addMovieUrl}"  htmlEscape="false"  >
		 <table>
		  <tr>
		   <td><form:label path="title">Title:</form:label></td>	  
		   <td><form:input path="title"/> <form:errors path="title" cssClass="error"/></td>
		  </tr>
		 </table>
		  
		 <input type="submit" value="Add" />
		</form:form>
     // CUT ...

when i send the form the actionurl is handled by

	@ActionMapping(params={"action=addMovie"})
	public void addMovie(
			@ModelAttribute("movie") Movie movie,
			BindingResult result,
			ActionRequest request,
			ActionResponse response) throws IOException{
		
		movieValidator.validate(movie, result);
		
		if(result.hasErrors()){
			logger.error("result has errors");
			return; <-------------------------------------------- here i want to come back to showAddMovieForm (when it displays the error), and i want to do that avoding the annotation of this method in a rendermapping method 
		}else{
			logger.debug("result is error free");
		}
		
		movieService.add(movie);
		logger.debug("movie " + movie.getTitle() + " added" );
	
	}

automatically after the actionmapping annotated method the showMovies method si automatically called

someone have any idea how to solve this problem (read into the code of the last block) ?

thanks a lot


ps
this is how I can solve the problem using a rendermapping annotated method:

@RenderMapping(params={"action=addMovie"})
	public String addMovie(
			@ModelAttribute("movie") Movie movie,
			BindingResult result,
			RenderRequest request,
			RenderResponse response,
			Model model) throws IOException{	
		
		movieValidator.validate(movie, result);
		
		if(result.hasErrors()){
			logger.error("result has errors");
			return "movies/showAddMovieForm";
		}else{
			logger.debug("result is error free");
		}
		
		movieService.add(movie);
		logger.debug("movie " + movie.getTitle() + " added" );
		
		model.addAttribute("movies",movieService.getAll());
		
		return "movies/index";
	}

[adrian.steuerhaus]

	@ActionMapping(params={"action=addMovie"})
	public void addMovie(
			@ModelAttribute("movie") Movie movie,
			BindingResult result,
			ActionRequest request,
			ActionResponse response) throws IOException{
		
		movieValidator.validate(movie, result);
		
		if(result.hasErrors()){
			logger.error("result has errors");
			return; <-------------------------------------------- here i want to come back to showAddMovieForm (when it displays the error), and i want to do that avoding the annotation of this method in a rendermapping method 
		}else{
			logger.debug("result is error free");
		}
		
		movieService.add(movie);
		logger.debug("movie " + movie.getTitle() + " added" );
	
	}

Hi,

Try this:

	@ActionMapping(params={"action=addMovie"})
	public void addMovie(
			@ModelAttribute("movie") Movie movie,
			BindingResult result,
			ActionRequest request,
			ActionResponse response) throws IOException{
		
		movieValidator.validate(movie, result);
		
		if(result.hasErrors()){
			logger.error("result has errors");
                        
                            
                        response.setRenderParameter("action","showAddMovieForm"); 

			return; <-------------------------------------------- here i want to come back to showAddMovieForm (when it displays the error), and i want to do that avoding the annotation of this method in a rendermapping method 
		}else{
			logger.debug("result is error free");
		}
		
		movieService.add(movie);
		logger.debug("movie " + movie.getTitle() + " added" );
	
	}

Every time after action, portlet will enter in render phase. By default will enter in method annotated with @RenderMapping which is default. But if you set parameters for other annotated method @RenderMapping, portlet will know what method to call.

And use the action URL:

<portlet:actionURL var="addMovieUrl" escapeXml="false">
       <portlet:param name="action" value="addMovie" />
   </portlet:actionURL>