[jboss-user] [JBoss Web Services Users] - Getting error when submitting form using SpringMVC and REST

Thu Oct 15 22:28:18 EDT 2009

Hello there,

Created an online form in JSP using SpringMVC tag libraries. The controller for my form is a RESTful web service (JBoss RESTEasy). 

The RESTful web service has two calls:

(1) http://localhost:8080/myapp/applications/new

This brings up the online form in the browser (this works).

(2) http://localhost:8080/myapp/applications/create

This saves the form data to a database (handles submit). This is where it breaks.

Followed the conventions from the sample demo petclinic app which comes with the Spring Framework. 

Online form:

  | <%@ page contentType="text/html;charset=UTF-8" language="java"%>
  | <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
  | <%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
  | <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
  | 
  | <html>
  | <body>
  | <form:form modelAttribute="application" method="POST" action="create">
  | 	<table>
  | 	<tr>
  | 	  <td>Name:</td>
  | 	  <td><form:input path="name" size="30" maxlength="80"/></td>
  | 	</tr>
  | 	<tr>
  | 	  <td>Description:</td>
  | 	  <td><form:input path="description" size="30" maxlength="80"/></td>
  | 	</tr>
  | 	<tr>
  | 	  <td>Image URL:</td>
  | 	  <td><form:input path="imgUrl" size="30" maxlength="80"/></td>
  | 	</tr>
  | 	</table>
  | 	<input type="submit" value="Save" />
  | </form:form>
  | </body>
  | </html>
  | 

The RESTful web service which serves as form controller:

  | @Controller
  | @Path(ApplicationsResource.APPLICATION_URL)
  | public class ApplicationsResource
  | {
  | 	private final Logger log = LoggerFactory.getLogger(ApplicationsResource.class);
  | 
  | 	public static final String APPLICATION_URL = "/applications";
  | 
  | 	@Autowired
  | 	private ApplicationManager applicationManager;
  | 
  | 	@POST
  | 	@Path("create")
  | 	@Produces(MediaType.TEXT_HTML)
  | 	@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
  | 	public void getNewApplication(@Context HttpServletRequest request, @ModelAttribute Application app)
  | 	{
  | 		log.info("ApplicationsResource - Inside getNewApplication() method.");
  | 		String contentType = request.getContentType();
  | 		log.info("Content-Type:" + contentType);
  | 		
  | 		try
  | 		{
  | 			if ("POST".equalsIgnoreCase(request.getMethod()))
  | 			{
  | 				if (app != null)
  | 				{
  | 					applicationManager.save(app);
  | 					log.info("Added application: " + app.getName());
  | 				}
  | 				else
  | 				{
  | 					log.info("Application not added");
  | 				}
  | 			}
  | 		}
  | 		catch (Exception e)
  | 		{
  | 			log.info("Exception: ", e);
  | 			throw new WebApplicationException(Response.status(RestError.SERVER_ERROR_HTTP_RESP).
  | type("application/json;charset=utf-8").
  | entity(new ErrorOutput(RestError.SERVER_ERROR_CODE, RestError.SERVER_ERROR_MSG, e.toString())).build());
  | 		}
  | 	}
  | 	
  | 	@InitBinder
  | 	public void setAllowedFields(WebDataBinder dataBinder)
  | 	{
  | 		dataBinder.setDisallowedFields(new String[] {"id"});
  | 	}
  | 
  | 	@GET
  | 	@Path("new")
  | 	@Produces( { MediaType.TEXT_HTML })
  | 	public ModelAndView getNewApplicationForm()
  | 	{
  | 		log.info("ApplicationsResource - Inside getNewApplicationForm");
  | 		ModelAndView mv = new ModelAndView("/applications/applications_new");
  | 		mv.addObject("application", new Application());
  | 		return mv;
  | 	}
  | }
  | 

Exception thrown when I click on submit:

  | Failed executing POST /applications/create
  | 
  | org.jboss.resteasy.spi.BadRequestException: 
  | 
  | Could not find message body reader for type: 
  | 
  | class com.myapp.domain.Application 
  | 
  | of content type: application/x-www-form-urlencoded
  | 	at org.jboss.resteasy.core.MessageBodyParameterInjector$1.createReaderNotFound(MessageBodyParameterInjector.java:73)
  | 	at org.jboss.resteasy.core.messagebody.ReaderUtility.doRead(ReaderUtility.java:105)
  | 	at org.jboss.resteasy.core.messagebody.ReaderUtility.doRead(ReaderUtility.java:93)
  | 	at org.jboss.resteasy.core.MessageBodyParameterInjector.inject(MessageBodyParameterInjector.java:120)
  | 	at org.jboss.resteasy.core.MethodInjectorImpl.injectArguments(MethodInjectorImpl.java:93)
  | 

Does anyone know why I am getting this exception?

Would really appreciate it if someone could help me with this issue...

Happy programming and thank you for taking the time to read this.

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