Hi, all here is my problem
I am trying to POST some data to a web page.
The web page (normally through a web browser) uses cookies.
My problem is that I do not know how to tell the Java program to let use cookies.
Here is the interesting part of the program:
URL cellUrl = new URL(strCellUrl);
HttpURLConnection conn = (HttpURLConnection) cellUrl.openConnection();
conn.setRequestMethod("POS
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setUseCaches(false);
conn.setUseCaches( true );
conn.setRequestProperty ("Content-Type", "application/x-www-form-ur
Any help would be very appreciated. I am also at a very hurry....
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by: mariusoPosted on 2001-04-30 at 14:30:08ID: 6040774
Chances are, you know what key you are looking for. In particular, we want to capture any cookie that we get hit with. A header that asks our browser to store a cookie may look like this:Server=Netscape-Enter
Date=Tue, 26 Sep 2000 18:46:19 GMT
RequestStartSec=943323980
RequestStartUsec=334140
Set-Cookie=gx_session_id_U
Content-Type=text/html
Connection=close
Note the fifth header, which has a key of "Set-Cookie" and a value of "gx_session_id_User_login_
The resulting string will either be null (if no Set-Cookie header is present) or directly contain the cookie. Note that the cookie has itself a name and a value, divided by an "=". In addition to the actual cookie value, after a semicolon ":", there may be more data on the cookie such as an expiry date. In this case, the cookie string may for example look like this:sessauth=44c46a10; expires=Wednesday, 27-Sep-2000 03:59:59 GMT;
Most likely, you can ignore anything after the semicolon in your Java program. What you want to send back to the server when sending your next request to the same domain is just the cookie itself, in this case "sessauth=44c46a10". We can extract the actual cookie for example withint index = cookie.indexOf(";");
if(index >= 0) cookie = cookie.substring(0, index);Returning cookies
When getting the next page from this site (or another site in the same domain), you attach your newly received cookie to your request as follows:URLConnection conn = anotherURL.getConnection()
conn.setRequestProperty("C
Then you go on reading the body and possibly the header as above. You want to look for additional cookies and, more likely, Set-Cookie headers that change the value of your stored cookie. If the server sends you a cookie with the same name ("sessauth" in the example above), you simply overwrite your cookie with the new one.