0 Replies Latest reply on Oct 15, 2009 10:28 PM by socal_javaguy

Getting error when submitting form using SpringMVC and REST

socal_javaguy Oct 15, 2009 10:28 PM

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.