How to save HtmlUnit cookies to a file?

Question

I\'d like to save HtmlUnit cookies to a file and on next run load them from that one. How can I do that? Thanks.

Answer 1

The above code works only with HtmlUnit (Im not criticizing or anything) i.e. exports only in a format that can be read by HtmlUnit agin.

Here is a more generic one: (This works with curl)

CookieManager CM = WC.getCookieManager(); //WC = Your WebClient's name
    Set<Cookie> set = CM.getCookies();
    for(Cookie tempck : set)    {
        System.out.println("Set-Cookie: " + tempck.getName()+"="+tempck.getValue() + "; " + "path=" + tempck.getPath() + ";");
    }

Now, Make String out of those println(s) in the for loop. write them to a text file.

works with curl :

curl -b "path to the text file" "website you want to visit using the cookie"

-b can be changed with -c too.. check curl docs...

Answer 2

    public static void main(String[] args) throws Exception {
        LogFactory.getFactory().setAttribute("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.NoOpLog");

        File file = new File("cookie.file");
        ObjectInputStream in = new ObjectInputStream(new FileInputStream(file));
        Set<Cookie> cookies = (Set<Cookie>) in.readObject();
        in.close();

        WebClient wc = new WebClient();

        Iterator<Cookie> i = cookies.iterator();
        while (i.hasNext()) {
            wc.getCookieManager().addCookie(i.next());
        }

        HtmlPage p = wc.getPage("http://google.com");

        ObjectOutput out = new ObjectOutputStream(new FileOutputStream("cookie.file"));
        out.writeObject(wc.getCookieManager().getCookies());
        out.close();
    }