silent post?

greetings,

can anyone out there provide some insight???

we have a home grown portal for our faculty & staff.
we'd like to integrate ( in a simple way ) crystal enterprise reporting.

in a simple way means ...
* provide a link to crystal enterprise in one of our channels,
* when clicked, we do a "silent post" to crystal with their
userid/password,
* then forward their ePortfolio page to a new browser window.

this provides a seamless link from our portal to their set of reports :)

the code i'm using is shown below, but it doesn't seem to do the trick.
when i make the request, crystal redirects me back to its logon page :(

has anyone successfully done this???

thanks,
wallace.

    URL url;
    URLConnection urlConn;
    DataOutputStream    printout;
    DataInputStream     input;

    url = new
URL("http://crystal.wright.edu/crystal/enterprise9/ePortfolio/en/logon.csp?action=logoff");

    urlConn = url.openConnection();
    urlConn.setDoInput (true);
    urlConn.setDoOutput (true);
    urlConn.setUseCaches (false);
    urlConn.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");

    printout = new DataOutputStream (urlConn.getOutputStream ());
    String content =
     "usr="    + URLEncoder.encode(userId) +
     "&pwd="   + URLEncoder.encode(passWd) +
     "&aut="   + URLEncoder.encode("secEnterprise");
    printout.writeBytes (content);
    printout.flush ();
    printout.close ();

    ServletOutputStream out = response.getOutputStream();
    response.setContentType("text/html");

    input = new DataInputStream (urlConn.getInputStream ());
    String str;
    while (null != ((str = input.readLine()))) {
     out.println(str1);
    }
    input.close ();

    out.flush();
    out.close();

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