AJAX call to Servlet Google App Engine (GAE)

Question

I am trying to make an AJAX call to my servlet but it doesn't work. I can't redirect to a JSP.

This is my AJAX call:

$.ajax({
            url:   '/register',
            type:  'GET'
    });

This is my Servlet:

    public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {

    getServletContext().getRequestDispatcher("/prueba.jsp").forward(req, resp);

}

If I use resp.sendRedirect("prueba.jsp"), it does not work, but if I use my browser and put "localhost:8888/register" it works fine!

Please help!

what you mean by "_it doesn´t work_"? what response do you get? also, it's not clear, are you using `forward()` or `sendRedirect()`? — Igor Artamonov, Jun 11 '15 at 10:02
There isn´t any response. Both ways are invalid, forward() and sendRedirect(). Thank you. — JHJ Dev, Jun 11 '15 at 10:30

score 0 · Accepted Answer · edited May 23 '17 at 11:58

0

You cannot redirect using Ajax. That's the point of Ajax – it's asynchronous, separate from the "main thread".

If you want to simply redirect either:

Redirect in the Java code after doing some processing
Have a link in the HTML – <a href="/register">Register!</a>
If you definitely want to use JavaScript to redirect, have a look at How can I make a redirect page using jQuery?

The last method can be sort-of used with with Ajax. But it's not exactly what you want to do. Have a look at How to redirect using AJAX?

edited May 23 '17 at 11:58

Community

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answered Jun 11 '15 at 10:02

Crembo

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`forward` is not redirect btw, it produces 200 status with content. so it should work, unless there is something wrong in other part (and "isn't any response" probably confirms that) – Igor Artamonov Jun 11 '15 at 11:44
@IgorArtamonov you are probably correct, but from what I gathered, JHJ here just wants to redirect. – Crembo Jun 11 '15 at 12:34

AJAX call to Servlet Google App Engine (GAE)

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