How Work's @ModelAttribute?
Hi, im new in springsource MVC, and im getting troubles with the @ModelAttribute.
From the doc's and a few tutorials and post's in forums i suppose the use of @ModelAttribute like the following:
HomeController
Code:
@Controller
public class HomeController {
@ModelAttribute("centro")
public String getCentro(){
return new String();
}
@RequestMapping(value = "/", method = RequestMethod.GET)
public String home(Locale locale, Model model) {
String centro = "00";
model.addAttribute("centro",centro);
return "home";
}
@RequestMapping(value = "/home", method = RequestMethod.POST)
public String home(@ModelAttribute("centro") String centro,BindingResult result, Model model) {
model.addAttribute("centro",centro+"#");
return "home";
}
}
home.jsp
Code:
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page session="false" %>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<html>
<head>
<link rel="stylesheet" type="text/css" href="<c:url value="/resources/estilos.css" />" />
<title>CE</title>
</head>
<body>
<form:form modelAttribute="centro" method="POST" action="home" >
<h1>
Consumos Eléctricos
</h1>
<a href="usuarios">Usuarios</a>
<p> <a href="centros">Centros</a> </p>
<input name="Centro" value="${centro}"/>
<input type="submit" name="submit" value="Submit!" />
</form:form>
</body>
</html>
But when i get the POST on Controller the String variable "centro", not back filled with the user input.
Im missing something??
Thank's for your time.
