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Question

spring 3 | show binding errors next to each input

Answer 1

A:

What you have with <form:errors path="firstname" /> works for me when I do it.

Make sure in your JSP you have the <form:form/> tag setup properly:

<form:form name="someName" commandName="commandClassName">

Also make sure that the <form:errors> field is within a <form:form> tag and that your instance variables for your command class have the correct capitalization in the JSP and getters/setters.

tkeE2036 2010-07-28 00:07:59

Answer 2

A:

Sorry. Still does not work for me:

JSP:

<body>
   <form:form name="myForm" commandName="contactCommand" method="post" action="addContact.html">
      <form:label  path="firstname">
         <spring:message code="label.firstname" />
      </form:label>
      <form:input  path="firstname" />
      <form:errors path="firstname" />
   </form:form>
</body>

Controller:

package bka.controller;

import javax.validation.Valid;

import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.SessionAttributes;
import org.springframework.web.servlet.ModelAndView;

import bka.form.Contact;
import bka.validator.ContactValidator;

@Controller
@SessionAttributes
public class ContactController
{
   @RequestMapping( value = "/addContact", method = RequestMethod.POST )
   public String addContact( @Valid @ModelAttribute( "contact" ) final Contact contact,
                             final BindingResult result )
   {
      if( result.hasErrors() )
      {
         return "forward:contacts.html";
      }   

      System.out.println( "First Name: " + contact.getFirstname() + "Last Name:  " + contact.getLastname()
               + "Years:      " + contact.getYears() );

      return "redirect:contacts.html";
   }

   @InitBinder
   protected void initBinder( final WebDataBinder binder )
   {
      binder.setValidator( new ContactValidator() );
   }

   @RequestMapping( "/contacts" )
   public ModelAndView showContacts()
   {
      return new ModelAndView( "contact", "contactCommand", new Contact() );
   }
}

eventhorizon 2010-07-28 05:55:50

In the form:form tag in the JSP use modelAttribute attribute instead of commandName setting the name of your modelAttribute like this: modelAttribute="contact". In the controller add Model model after Binding result (I don't know if it's compulsory, I always add it, but it should go after binding result in case you add it). Try to remove forward prefix in case it still doesn't work.

Javi 2010-07-28 07:45:12

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spring 3 | show binding errors next to each input

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