Neither BindingResult nor plain target object for bean name 'loginForm

Hi,

I'm new to Spring. Trying to develop a small login application. But I' getting the exception. Here is my code & exception

<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>

<form:form action="login.html" commandName="loginForm">

<tr>
			<td>Password:<font color="red"><form:errors path="password" cssClass="error"/></font></td>
			<td><form:password path="password"/></td>
		</tr>
		
		<tr>
			<td colspan="2" align="Center"><input type="submit" value="Submit" /></td>
		</tr>
		
		<tr>
			<td><a href="register.html">New User</a></td>
		</tr>
		
	</table>

</form:form>
</body>
</html>

package com.org.controller;

import java.util.Map;

import javax.validation.Valid;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import com.org.dao.LoginDaoImpl;
import com.org.dao.RegisterNewUserDaoImpl;
import com.org.model.LoginForm;
import com.org.model.RegisterNewUser;

@Controller
@RequestMapping("login.html")
public class LoginController {
	
	private LoginDaoImpl loginDao;	
	
	public LoginDaoImpl getLoginDao() {
		return loginDao;
	}

public void setLoginDao(LoginDaoImpl loginDao) {
		this.loginDao = loginDao;
	}

//////////////////////////////////////////////////

@RequestMapping(method=RequestMethod.GET)
	public String returnLoginModel(Map model) {
		LoginForm loginForm=new LoginForm();
		model.put("loginForm", loginForm);
		return "Login";
	}
	
	//////************login action***********/////////////////////////////
	
	
	@RequestMapping(method=RequestMethod.POST)
	public String loginAction(@Valid LoginForm login, BindingResult errors, Map model) {
		///LoginForm login=new LoginForm()----> for this loginform will get null;
		
		
		System.out.println("<-----loginAction---->"+errors);
		login=(LoginForm)model.get("loginForm");
		boolean status=loginDao.aunthenticateUser(login);
		
		if(errors.hasErrors()){
			return "Login";
		}	
		else if(status==false){
			errors.rejectValue("userName", "invalid.user");
			return "Login";
		}			
		else
			model.put("loginForm", login);
			return "welcome";
	}
}

here is the exception

Please help me. since from 4 days I'm trying but no use.

Thanks,
Geeta

Hi geetha,
you cann't get loginForm object from the request.. You should get it by using @ModelAttribute("loginForm") annotation..
Repalce your loginAction() method with below code..

public String loginAction(@Valid @ModelAttribute("loginForm") LoginForm login, BindingResult errors) {
///LoginForm login=new LoginForm()----> for this loginform will get null;

System.out.println("<-----loginAction---->"+errors);
boolean status=loginDao.aunthenticateUser(login);

if(errors.hasErrors()){
return "Login";
}
else if(status==false){
errors.rejectValue("userName", "invalid.user");
return "Login";
}
else
return "welcome";
}

In this case, loginForm object from the jsp page automatically stored into the login object of loginAction() method parameter..

Thank You so much Rakesh.. I got output.

Hi Geeta, Rakesh,

I am having a similar problem.

I am using the Spring validator but getting exactly the same error Geeta was getting earlier.

I have tried the solution advised by Rakesh but in vain.

package com.asset.manager.controller;

import java.util.Map;
import javax.validation.Valid;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.asset.manager.model.LoginForm;

@Controller
@RequestMapping("/Login")
public class LoginController {
	// Display the form on the get request
		@RequestMapping(method = RequestMethod.GET)
		public String showLoginForm(Map model) {
			LoginForm loginForm = new LoginForm();
			model.put("loginForm", loginForm);
			return "loginform";
		}
		
		//process the form
		
		
/*	@RequestMapping(method=RequestMethod.POST)
	public String processLogin(@Valid LoginForm loginForm,
			BindingResult result, Map model){
		if(result.hasErrors()){
			return "loginform";
		}		
		// Add the saved loginForm to the model
		model.put("loginForm", loginForm);
		return "loginsuccess";
	}*/
	
	@RequestMapping(method=RequestMethod.POST)
	public String processLogin(@Valid @ModelAttribute("loginForm")LoginForm login, BindingResult result){
		if(result.hasErrors()){
			return "loginform";
		}
		else return "loginsuccess";
	}
	
}

PLEASE HELP..

Hi Dushyant,

Its been long time since I leave the Spring. But as far as I remember, you should use the same name to get the value from request.

package com.asset.manager.controller;  
      
    import java.util.Map;  
    import javax.validation.Valid;  
    import org.springframework.stereotype.Controller;  
    import org.springframework.validation.BindingResult;  
    import org.springframework.web.bind.annotation.ModelAttribute;  
    import org.springframework.web.bind.annotation.RequestMapping;  
    import org.springframework.web.bind.annotation.RequestMethod;  
    import com.asset.manager.model.LoginForm;  
      
    @Controller  
    @RequestMapping("/Login")  
    public class LoginController {  
        // Display the form on the get request  
            @RequestMapping(method = RequestMethod.GET)  
            public String showLoginForm(Map model) {  
                LoginForm loginForm = new LoginForm();  
                model.put("loginForm", loginForm);  
                return "loginform";  
            }  
              
            //process the form  
              
              
    /*  @RequestMapping(method=RequestMethod.POST) 
        public String processLogin(@Valid LoginForm loginForm, 
                BindingResult result, Map model){ 
            if(result.hasErrors()){ 
                return "loginform"; 
            }        
            // Add the saved loginForm to the model 
            model.put("loginForm", loginForm); 
            return "loginsuccess"; 
        }*/  
          
        @RequestMapping(method=RequestMethod.POST)  
        public String processLogin(@Valid @ModelAttribute("loginForm")LoginForm loginForm, BindingResult result){  
            if(result.hasErrors()){  
                return "loginform";  
            }  
            else return "loginsuccess";  
        }  
          
    }

I replaced the login name with loginForm in public String processLogin(-,-) method.