<form action="j_security_check" method=post>
    <div id="loginBox"  class ="rounded">
        <p><strong>username:</strong>
            <input type="text" size="20" name="j_username"></p>

        <p><strong>password:</strong>
            <input type="password" size="20" name="j_password"></p>

        <p><input type="submit" value="submit"></p>
    </div>
</form>

httpRequest.getSession().setAttribute("status", status);

<p>status=${status}</p>

@WebFilter(filterName="LoginFilter", urlPatterns={"/j_security_check"})

@WebFilter(filterName="LoginFilter", urlPatterns={"/*"})