Erreur Projet Spring MVC

Bonjour à tous,

Je réalise un petit formulaire afin d'apprendre Spring MVC mais j'ai cette erreur:

Citation:

GRAVE: "Servlet.service()" pour la servlet jsp a gï¿½nï¿½rï¿½ une exception
javax.servlet.jsp.JspTagException: Neither BindingResult nor plain target object for bean name 'participant' available as request attribute
at org.springframework.web.servlet.tags.BindTag.doStartTagInternal(BindTag.java:120)
at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:77)
at org.apache.jsp.inscription_jsp._jspService(inscription_jsp.java:120)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)

Voici mon controlleur:
Code:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 public class HelloController extends SimpleFormController { private HelloService helloService; private ImplParticipantDao implParticipantDao; ...getter et setter... public HelloController() { setCommandClass(Participant.class); //Class setCommandName("participant"); //Nom du champs ! setSuccessView("encours"); // En cas de succes,l'action du formulaire ! setFormView("inscription"); //Nom de mon fichier ! } @Override protected ModelAndView onSubmit(Object command) throws Exception{ Participant participant =(Participant)command; ModelAndView mv = new ModelAndView(getSuccessView()); implParticipantDao.addParticipant(participant); mv.addObject("participant", helloService.addParticipant()); return mv; } }
applicatinContext.xml:
Code:

1 2 3 4 5 6 ...  <bean name="helloService" class="be.appl.metier.HelloService" /> <bean name="implParticipantDao" class="be.appl.concours.dao.ImplParticipantDao" /> ...
dispatcher-servlet.xml
Code:

1 2 3 4 5 ...<bean class="be.appl.controller.HelloController"> <property name="helloService" ref="helloService"/> <property name="implParticipantDao" ref="implParticipantDao"/> </bean>...
Je n'arrive même pas à accéder à mon formulaire JSP que voici:
Code:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 <h2>Inscription</h2> <spring:nestedPath path="participant"> <table width="600px" border="0"> <form action="" method="post"> <tr> <td width="300px">Name:</td> <spring:bind path="participant.nom"> <td><input type="text" name="${status.expression}" value="${status.value}" ></td> </spring:bind><br> </tr> <tr> <td>Prénom:</td> <spring:bind path="participant.prenom"> <td><input type="text" name="${status.expression}" value="${status.value}"></td> </spring:bind> </tr> <tr> <td>Login:</td> <spring:bind path="participant.login"> <td><input type="text" name="${status.expression}" value="${status.value}"></td> </spring:bind> </tr> <tr> <td>Mots de passe:</td> <spring:bind path="participant.mp"> <td><input type="text" name="${status.expression}" value="${status.value}"></td> </spring:bind> </tr> <tr> <td>Confirmer le mots de passse:</td> <spring:bind path="participant.mp"> <td><input type="text" name="${status.expression}" value="${status.value}"></td> </spring:bind> </tr> <tr> <td>Mail:</td> <spring:bind path="participant.mail"> <td><input type="text" name="${status.expression}" value="${status.value}"></td> </spring:bind> </tr> <tr> <td>Numéro du bureau:</td> <spring:bind path="participant.bureau"> <td><input type="text" name="${status.expression}" value="${status.value}"></td> </spring:bind> </tr> <tr> <td>Téléphone bureau:</td> <spring:bind path="participant.telephone"> <td><input type="text" name="${status.expression}" value="${status.value}"></td> </spring:bind> </tr><p></p> <tr> <td></td> <td> <input type="submit" value="Enregistrer"><input type="reset" value="Annuler"> </td> </tr> </form> </table> </spring:nestedPath>
Avez vous une idée ?

D'avance merci à tous