Neither BindingResult nor plain target object for bean name 'user' available as request attribute

**sihamnet** · 09/09/2016, 16h56

Bonjour,

SVP est ce que vous pouvez m'aider avec cette erreur qui surviens à chaque fois je veux éditer un 'user

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    GRAVE: Servlet.service() for servlet [appServlet] in context with path [/crm] threw exception [java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'user' available as request attribute] with root cause
    java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'user' available as request attribute

registration.jsp

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<div class="generic-container">
	<div class="well lead">User Registration Form</div>
 	<form:form method="POST" modelAttribute="user" action="#" class="form-horizontal">
 
		<form:input type="hidden" path="userID" id="userID" />
 
		<div class="row">
			<div class="form-group col-md-12">
				<label class="col-md-3 control-lable" for="firstName">First Name</label>
				<div class="col-md-7">
					<form:input type="text" path="firstName" id="firstName" class="form-control input-sm" />
					<div class="has-error">
						<form:errors path="firstName" class="help-inline"/>
					</div>
				</div>
			</div>
		</div>
 
		<div class="row">
			<div class="form-group col-md-12">
				<label class="col-md-3 control-lable" for="lastName">Last Name</label>
				<div class="col-md-7">
					<form:input type="text" path="lastName" id="lastName"  class="form-control input-sm"/>
					<div class="has-error">
						<form:errors path="lastName" class="help-inline"/>
					</div>
				</div>
			</div>
		</div>
 
 
		<div class="row">
			<div class="form-group col-md-12">
				<label class="col-md-3 control-lable" for="email">Email</label>
				<div class="col-md-7">
					<c:choose>
						<c:when test="${edit}">
							<form:input type="text" path="email" id="email" class="form-control input-sm" disabled="true"/>
						</c:when>
						<c:otherwise>
							<form:input type="text" path="email" id="email" class="form-control input-sm" />
							<div class="has-error">
								<form:errors path="email" class="help-inline"/>
							</div>
						</c:otherwise>
					</c:choose>
				</div>
			</div>
		</div>
 
 
 
		<div class="row">
			<div class="form-group col-md-12">
				<label class="col-md-3 control-lable" for="password">Password</label>
				<div class="col-md-7">
					<form:input type="password" path="password" id="password" class="form-control input-sm"/>
					<div class="has-error">
						<form:errors path="password" class="help-inline" />
					</div>
				</div>
			</div>
		</div>
 
 
		<div class="row">
			<div class="form-group col-md-12">
				<label class="col-md-3 control-lable" for="privileges">Privileges</label>
				<div class="col-md-7">
					<form:select path="privileges" items="${user.privileges}" multiple="true" itemValue="userID" itemLabel="type" class="form-control input-sm"/>
					<div class="has-error">
						<form:errors path="privileges" class="help-inline" />
					</div>
				</div>
			</div>
		</div>
 
		<div class="row">
			<div class="form-actions floatRight">
				<c:choose>
					<c:when test="${edit}">
						<input type="submit" value="Update" class="btn btn-primary btn-sm"/> or <a href="<c:url value='/usersMngmt' />">Cancel</a>
					</c:when>
					<c:otherwise>
						<input type="submit" value="Register" class="btn btn-primary btn-sm"/> or <a href="<c:url value='/usersMngmt' />">Cancel</a>
					</c:otherwise>
				</c:choose>
			</div>
		</div>
	</form:form>
	</div>
</body>
</html>

CRMUserController.java

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@Controller
    public class CRMUserController {
 
	    @Autowired
	    private CRMUserService userService;
	    @Autowired
	    private PrivilegeService privilegeService;
	    @Autowired
		MessageSource messageSource;
	    /**
                 * This method will list all CRM Users.
                 */
	    @RequestMapping(value = {"usersMngmt", "/usersMngmt"})
	    public ModelAndView usersMngmt() {
	    	List<CRMUser> CRMUsersList = (ArrayList<CRMUser>)userService.getAllUsers();
 
    		Map<String, Object> model = new HashMap<String, Object>();
            model.put("CRMUser", CRMUsersList);
            //privilegeList
            List<Privilege> privileges = (ArrayList<Privilege>)privilegeService.getAllPrivileges();
 
            model.put("privileges", privileges);
            return new ModelAndView("usersMngmt", "model", model);
	    }
 
	    /**
                 * This method will provide the medium to add a new user.
                 */
		@RequestMapping(value = { "/newuser" }, method = RequestMethod.GET)
		public String newUser(ModelMap model) {
			CRMUser user = new CRMUser();
			model.addAttribute("user", user);
			model.addAttribute("edit", false);
			return "registration";
		}
 
		/**
                 * This method will be called on form submission, handling POST request for
                 * saving user in database. It also validates the user input
                 */
		@RequestMapping(value = { "/newuser" }, method = RequestMethod.POST)
		public String saveUser(@Valid CRMUser user, BindingResult result,
				ModelMap model) {
			if (result.hasErrors()) {
				return "registration";
			}
			/*
			 * Preferred way to achieve uniqueness of field [email] should be implementing custom @Unique annotation 
			 * and applying it on field [email] of Model class [CRMUser].
			 * 
			 * Below mentioned peace of code [if block] is to demonstrate that you can fill custom errors outside the validation
			 * framework as well while still using internationalized messages.
			 * 
			 */
			if(!userService.isUserEmailUnique(user.getUserID(), user.getEmail())){
				FieldError emailError =new FieldError("user","email",messageSource.getMessage("non.unique.email", new String[]{user.getEmail()}, Locale.getDefault()));
			    result.addError(emailError);
				return "registration";
			}
 
			userService.saveUser(user);
 
			model.addAttribute("success", "User " + user.getFirstName() + " "+ user.getLastName() + " registered successfully");
			//return "success";
			return "registrationsuccess";
		}
 
 
		/**
                 * This method will provide the medium to update an existing user.
                 */
		@RequestMapping(value = { "/edit-user-{email}" }, method = RequestMethod.GET)
		//@ModelAttribute("user")
		public String editUser(@PathVariable String email, ModelMap model) {
			CRMUser user = userService.findByEmail(email);
			model.addAttribute("user", user);
			model.addAttribute("edit", true);
			return "registration";
		}
 
		/**
                 * This method will be called on form submission, handling POST request for
                 * updating user in database. It also validates the user input
                 */
		@RequestMapping(value = { "/edit-user-{email}" }, method = RequestMethod.POST)
		//@ModelAttribute("user")
		public String updateUser(@Valid CRMUser user, BindingResult result,
				ModelMap model, @PathVariable String email) {
			model.addAttribute("user", user);
 
			if (result.hasErrors()) {
				return "registration";
			}
 
			/*//Uncomment below 'if block' if you WANT TO ALLOW UPDATING SSO_ID in UI which is a unique key to a User.
			if(!userService.isUserSSOUnique(user.getId(), user.getSsoId())){
				FieldError ssoError =new FieldError("user","ssoId",messageSource.getMessage("non.unique.ssoId", new String[]{user.getSsoId()}, Locale.getDefault()));
			    result.addError(ssoError);
				return "registration";
			}*/
 
 
			userService.updateUser(user);
 
			model.addAttribute("success", "user " + user.getFirstName() + " "+ user.getLastName() + " updated successfully");
			return "registrationsuccess";
		}

CRMUserDAOImpl.java

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 @Repository
    @Transactional(value="txManager") 
 
    public class CRMUserDAOImpl implements CRMUserDAO{
 
 
	private static final Logger logger = LoggerFactory.getLogger(CRMUserDAOImpl.class);
 
	@Autowired
    private SessionFactory sessionFactory;
 
 
	@Override
	public CRMUser updateUser(CRMUser user) {
		sessionFactory.getCurrentSession().update(user);
        return user;
	}
 
	@Override
	public List<CRMUser> getAllUsers() {
 
		 Session session = null;
			 try {
				    session = HibernateUtil.getSessionFactory().getCurrentSession();
				} catch (HibernateException e) {
				    session = HibernateUtil.getSessionFactory().openSession();
				}
		     Transaction tx = session.beginTransaction();
 
		     List<CRMUser> L = new ArrayList<CRMUser>();
		        try{
		            L = session.createQuery("SELECT cu FROM CRMUser cu").list();
		         tx.commit();
		        }catch(HibernateException e){
		            tx.rollback();
		        }
		        return L;	
	}
 
 
	@Override
	public boolean isUserEmailUnique(long userID, String email) {
		        CRMUser user = findByEmail(email);
		        return ( user == null || ( (user!=null) && (user.getUserID() == userID)) );
	}
 
	@Override
	public void saveUser(CRMUser user) {
		Session session = null;
		 try {
			    session = HibernateUtil.getSessionFactory().getCurrentSession();
			} catch (HibernateException e) {
			    session = HibernateUtil.getSessionFactory().openSession();
			}
	    Transaction tx = session.beginTransaction();
	    try{
	    	session.persist(user);
	    	tx.commit();
	    }catch(HibernateException e){
	    	tx.rollback();
	    }	
	}
 
	@Override
	public CRMUser findByEmail(String email) {
		System.out.println("1---Email : "+email);
		Session session = null;
		 try {
			    session = HibernateUtil.getSessionFactory().getCurrentSession();
			} catch (HibernateException e) {
			    session = HibernateUtil.getSessionFactory().openSession();
			}
	     Transaction tx = session.beginTransaction();
	     CRMUser user = null;
	     try{
	    	 Query q = session.createQuery("FROM CRMUser cu WHERE cu.email=:email");
	    	 q.setParameter("email", email);
	    	 q.executeUpdate();
	    	 user = (CRMUser) q.list();
	    	 System.out.println("2---Email : "+user.getEmail());
	    	 tx.commit();
	     }catch(HibernateException e){
	         tx.rollback();
	     }
	     if(user!=null){
	    	 Hibernate.initialize(user.getPrivileges());
		 }
		 return user;	
 
	}
 
 
	}

PS: j'ai essayé d'utiliser @ModelAttribute("user) au lieu de @Valid mais ça donne l'erreur 404

**JeitEmgie** · 12/09/2016, 09h15

Envoyé par sihamnet

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<form:input type="hidden" path="userID" id="userID" />

relisez attentivement…

**sihamnet** · 14/09/2016, 22h14

Envoyé par JeitEmgie

relisez attentivement…

une explication de l'erreur serait plus gentille de votre part

**andry.aime** · 15/09/2016, 07h14

Bonjour,

Code jsp :

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<form:form method="POST" modelAttribute="user" action="#" class="form-horizontal">

Tu as posté le formulaire vers le même URL, or pour ce path, il n'y a pas, du coté contrôleur, une méthode qui prend comme attribut user. Tu dois modifier la valeur de action de ton formulaire par rapport aux RequestMapping qui accepte l'attribut user par la méthode POST de ton controlleur selon ton besoin.

A+.

Neither BindingResult nor plain target object for bean name 'user' available as request attribute

Spring Java

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