
<!DOCTYPE html>
<html lang="en" xmlns:th="www.thymeleaf.org">
<head>
    <meta charset="UTF-8" />
    <title>Title</title>
</head>
<body>
<form action="#" th:action="@{/processform}" method="post">
    Login: <input type="text" name="login" />
    <input type="submit" value="Submit" />
</form>
</body>
</html>