Can't read from 'messages.properties' file

[Faisal Fuad]

Can any one please help me to find out my mistake? Down here I just want to implement a simple form validation (NotEmpty) for two fields only. And if fields are empty (either one or both), then error message will appear where those message(s) I want to set through my "mesages.properties" file. However, it is not working (not reading mesages.properties file) like the way I want

My codes are as folows:

a) web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee"
	xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	id="WebApp_ID" version="2.5">
	<display-name>FormHandlingValidationExample</display-name>

	<servlet>
		<servlet-name>FormExample</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<load-on-startup>1</load-on-startup>
	</servlet>
	
	<servlet-mapping>
		<servlet-name>FormExample</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>	
		
	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>
</web-app>

b) FormExample-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="
			http://www.springframework.org/schema/beans
			http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
			http://www.springframework.org/schema/context
			http://www.springframework.org/schema/context/spring-context-3.0.xsd
			http://www.springframework.org/schema/mvc
			http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
				
	<mvc:annotation-driven/>
	
	<context:component-scan base-package="com.main.controller"></context:component-scan>
		
	<bean id="jspViewResolver"
		  class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="viewClass"
			      value="org.springframework.web.servlet.view.JstlView" />
		<property name="prefix" value="/WEB-INF/jsp/" />
		<property name="suffix" value=".jsp" />
	</bean>
	
	<!-- Register the messages.properties -->
	<bean id="messageSource"
          class="org.springframework.context.support.ReloadableResourceBundleMessageSource">

		<property name="basename" value="/WEB-INF/messages" />

	</bean>
	
</beans>

c) messages.properties

NotEmpty.productList.product_name= Name is required!
NotEmpty.productList.product_price= Price is required!

d) ProductController.java

package com.main.controller;

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 org.springframework.web.servlet.ModelAndView;

import com.main.form.ProductList;

@Controller
public class ProductController {
	
	@RequestMapping (value="/forForm", method=RequestMethod.GET)
	public ModelAndView showForm(){
		return new ModelAndView("FormInput", "myObject", new ProductList());
	}
	
	@RequestMapping (value="/mainController")
	public ModelAndView mainController(@Valid @ModelAttribute ("myObject") ProductList productList, BindingResult result){
		
		ModelAndView model = new ModelAndView("FormOutput");
		
		if (result.hasErrors()){
			System.out.println("Have Error");
			model.setViewName("FormInput");
		}else {
			System.out.println("No Error");
			String product_name=productList.getProduct_name();
			String product_price=productList.getProduct_price();
			
			model.addObject("product_name", product_name);
			model.addObject("product_price", product_price);
		}
		return model;
	}
}

e) ProductList.java

package com.main.form;

import org.hibernate.validator.constraints.NotEmpty;

public class ProductList {

	@NotEmpty
	private String product_name;
	@NotEmpty
	private String product_price;
	
	public String getProduct_name() {
		return product_name;
	}
	public void setProduct_name(String product_name) {
		this.product_name = product_name;
	}
	public String getProduct_price() {
		return product_price;
	}
	public void setProduct_price(String product_price) {
		this.product_price = product_price;
	}
	
}

f) index.jsp

<jsp:forward page="/forForm"></jsp:forward>

g) FormInput.jsp

<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!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>Enter product INFO</title>
</head>
<body>
	<h2>: : Add New Products : :</h2>
	<form:form method="POST" commandName="myObject" action="mainController">
		<table>
			<tr>
				<td><form:label path="product_name">Product Name</form:label></td>
				<td><form:input path="product_name"></form:input></td>
				<td><font color="red"><form:errors path="product_name"></form:errors></font></td>
			</tr>
			<tr>
				<td><form:label path="product_price">Product Price</form:label></td>
				<td><form:input path="product_price"></form:input></td>
				<td><font color="red"><form:errors path="product_price"></form:errors></font></td>
			</tr>
			<tr>
				<td colspan="2">
					<input type="submit" value="Submit"/>
				</td>
			</tr>
		</table>
	</form:form>
</body>
</html>

h) FormOutput.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!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>Result of your entry</title>
</head>
<body>
	<h2>: : Product INFO : :</h2>
	<p>
		Product Name : ${product_name}
	</p>
	<p>
		Product Name : ${product_price}
	</p>
</body>
</html>

Thanks

[Faisal Fuad]

I did solve this problem as follows:

As in my "ProductController.java" I defined this following:

.... LINE:21
@RequestMapping (value="/mainController")
	public ModelAndView mainController(@Valid @ModelAttribute ("myObject") ProductList productList, BindingResult result){
.... LINE:24

Therefore, in "messages.properties" file I did the following change (followed the right format):

NotEmpty.myObject.product_name= Name is required!
NotEmpty.myObject.product_price= Price is required!

and in "FormExample-servlet.xml" I did register the messages properties file as follows:

	<!-- Register the messages.properties -->
	<bean id="messageSource"
          class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
		<property name="basename" value="/WEB-INF/messages" />
	</bean>

Honestly speaking, I did these same changes even before and tried many times but didn't work. And now it is 1 AM...
May be my lenovo needs to sleep and so did this little favor after this long

Anyway, will be glad if this post helps someone. Good Night