I've searched through several tutorials and answers to this forum to try to solve my problem: I want to show the validation errors from my bean in my form using spring MVC.
No matter what I try, I can't get it to work. Im not using redirections, my binding results are directly after the model class and so on.
Here's what I have so far:
Login Class:
public class LoginUser implements Serializable {
@NotNull
@Column(name="username", unique=true)
@Size(min=5)
private String username;
@NotNull
@Size(min=5)
private String password;
Login Controller:
@Transactional
@Controller
public class LoginController {
@Autowired
UserDao dao;
@RequestMapping(value = "enter", method = RequestMethod.POST)
public String doLogin(@ModelAttribute("user") @Valid LoginUser user, BindingResult result, HttpSession session) {
if (result.hasErrors()) {
return "login/loginForm";
} else {
if (dao.authenticate(user)) {
session.setAttribute("userLoggedIn", user.getUsername());
return "forward:index";
} else {
return "redirect:login";
}
}
}
Login Form:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://www.springframework.org/tags" prefix="spring"%>
<%@ 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">
<script type="text/javascript" src="resources/js/bootstrap.js"></script>
<script type="text/javascript" src="resources/js/jquery-3.1.0.min.js"></script>
<link rel="stylesheet" href="resources/css/bootstrap.css">
<title><spring:message code="title.login" /></title>
</head>
<body>
<spring:message code="login.message.login" />
<form:form action="enter" commandName="loginForm" method="POST">
<spring:message code="username.login" />
<input type="text" name="username" id="username" /><br />
<form:errors path="username" />
<spring:message code="password.login" />
<input type="password" name="password" id="password" /><br /> <input
type="submit" value="<spring:message code='button.login'/>"><br />
<spring:message code="does.not.have.account.login" />
<a href="register"><spring:message code="register.link.login" /></a>
</form:form>
</body>
</html>
Ohh, I forgot to add - I have a messages.properties configured (working fine, tested) and the messages are comming from there. Here is the line related to the form:
messages_en.Properties
NotEmpty.loginForm.username= Please fill the username field
By the way, it may be worth to note that my view is mounted trough a composite view (made of JSP includes of header, mainpage and footer) that overrides the customary viewloading in Sping-MVC.
