How to redirect in JAX-RS after a post to a get
<p>I'm developing a simple login form (security is not a problem) where the user visits the page <code>login</code> inserts <em>username</em> and <em>password</em> and press <em>send</em> that POST these information to the page <code>check</code>.</p>

<p>Page <code>check</code> checks credential and, if everything is OK, creates cookie and redirect to page <code>home</code>, otherwise redirects to page <code>login</code>.</p>

<p>I use the following redirect:</p>

<pre><code>return Response.temporaryRedirect(new URI("/home")).cookie(cookie, cookie2).build();
</code></pre>

<p>This redirects from <code>check</code> (@POST method) to <code>home</code> (@POST method), I just wanna to redirect to <code>home</code> (@GET method).</p>

<p><strong>Important note</strong>: I'm a newbie of JAX and what I would like to create is a RESTful service. Are redirects a correct way to implement a REST service?</p>

<p>Now I'll show you small slices of code hoping:</p>

<p><code>check</code> Page</p>

<pre><code>@POST
@Produces(MediaType.TEXT_HTML)
public Response checkLogin(@FormParam(Login.fieldUsername) String user, @FormParam(Login.fieldPsw) String psw) throws URISyntaxException {
    boolean val = db.checkLogin(user, psw);
    NewCookie cookie;
    NewCookie cookie2;
    if(val){
        //Valid access + cookie creation
        cookie = new NewCookie("username", user);
        cookie2 = new NewCookie("hashedPassword", psw);
        return Response.temporaryRedirect(new URI("/home")).cookie(cookie, cookie2).build();
    } else {
        //Wrong login + cookie deletion
        cookie = new NewCookie("username", "");
        cookie2 = new NewCookie("hashedPassword", "");
        return Response.temporaryRedirect(new URI("/login")).cookie(cookie, cookie2).build();
    }
}
</code></pre>

<p><code>login</code> page</p>

<pre><code>@GET
@Produces(MediaType.TEXT_HTML)
public Response showLoginForm() throws URISyntaxException{
    boolean validCookie = db.checkLogin(username, hashedPassword);

    String data = "&lt;form name='Username' action='"+ redirect +"' method='post'&gt;&lt;ul&gt;"
            + "&lt;li&gt;&lt;label for='"+fieldUsername+"'&gt;Username&lt;/label&gt;"
            +   "   &lt;input type='text' name='"+fieldUsername+"' placeholder='Insert username' required&gt;&lt;/li&gt;"
            + "&lt;li&gt;&lt;label for='"+fieldPsw+"'&gt;Password&lt;/label&gt;"
            +   "   &lt;input type='password' name='"+fieldPsw+"' placeholder='Insert password' required&gt;&lt;/li&gt;"
            + "&lt;li&gt;&lt;input type='submit' value='Login'&gt;"
            + "&lt;/li&gt;&lt;/ul&gt;&lt;/form&gt;";
    if(validCookie){
        return Response.temporaryRedirect(new URI(homepage)).build();
    }
    else {
        return Response.ok( showTheForm(data) ).build();
    }
}
</code></pre>