How to log in to VK without using OAuth, just to receive cookies?

Question

Java

Good day. You need to log in to VK to receive cookies, and then to send posts to the wall. I plan to do everything through POST requests, without API.
As I understand it, parameters are required for authorization:
ip_h
lg_h
email
pass
I send a post-request https://login.vk.com/?act=login with these parameters, but in the end I get org.apache.http.client.HttpResponseException
What am I doing wrong?