Cookies and Java

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jack.smith.sam@gmail.com - 04 Oct 2006 06:35 GMT

Hi All,

I want to get data from URLURL using Java. If I use wget as the
following, I will get the result:

wget --user-aget=Mozilla/5.0 --cookies=on "URLURL"

So I tried to use cookies in Java but can not figure out how. Here is
how I try to do that:

        String Url="URLURL";
        URL url = new URL(Url);

        java.net.URLConnection conn = url.openConnection();
        conn.setRequestProperty("User-Agent","Mozilla/5.0");
        String myCookie = "";
        conn.setRequestProperty("Cookie", myCookie);
        conn.connect();
but it does not work.
Can you help me?

thanks a lot for you time.

Reply to this Message

Andrew Thompson - 04 Oct 2006 07:50 GMT

> but it does not work.

Wait, I know this one..

> Can you help me?

If it is an IAmJustFeelingLazyException, you might
try a call to soundFlogging() immediately prior to the
code shown.

If it is something else, you might try.. something else,
like - being very specific about how the code is not working
(ensuring you make clear what you expected to happen).

It is best to ..
- not swallow exceptions (is was unclear from your code snippet)
- copy/paste compile & runtime exceptions and errors
(stop at 50+ lines of stack trace).

Andrew T.

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Chris Uppal - 04 Oct 2006 09:44 GMT

> java.net.URLConnection conn = url.openConnection();
> conn.setRequestProperty("User-Agent","Mozilla/5.0");
> String myCookie = "";
> conn.setRequestProperty("Cookie", myCookie);
> conn.connect();

I doubt if you should be opening the connection until after you've set the
cookies and what-have-you.

-- chris

Reply to this Message

jack.smith.sam@gmail.com - 04 Oct 2006 10:07 GMT

Thanks Chris.
I used HttpClient class and it solved my problem.

> > java.net.URLConnection conn = url.openConnection();
> > conn.setRequestProperty("User-Agent","Mozilla/5.0");
[quoted text clipped - 6 lines]
>
> -- chris

Reply to this Message

Tor Iver Wilhelmsen - 04 Oct 2006 19:29 GMT

> I doubt if you should be opening the connection until after you've set the
> cookies and what-have-you.

Then what should he set the cookies etc. in? Notice that the method
used to set request headers (setRequestProperty()) is in
URLConnection, which is reutrned by openConnection().

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Cookies and Java

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