Swift webView 记录提取cookies 自动登陆

    // retrieve the cookies from NSUserDefaults
    func retrieveCookies() {
        var cookiesdata = NSUserDefaults.standardUserDefaults().objectForKey("XXXX") as! NSData
        if cookiesdata.length > 0 {
            var cookies: NSArray = NSKeyedUnarchiver.unarchiveObjectWithData(cookiesdata) as! NSArray
            for cookie in cookies {
                NSHTTPCookieStorage.sharedHTTPCookieStorage().setCookie(cookie as! NSHTTPCookie)
            }
        }
    }

    // save the cookies from inputed data
    func saveCookies() {
        var cookies: NSArray = NSHTTPCookieStorage.sharedHTTPCookieStorage().cookiesForURL(NSURL(string: "http://www.XXXX.com.au")!)!
        var data: NSData = NSKeyedArchiver.archivedDataWithRootObject(cookies)
        NSUserDefaults.standardUserDefaults().setObject(data, forKey: "XXXX")
    }