My professor, who I had work with him before, put a photo with beautiful smile on Whats-App status, I want to say to him that always be happy and I wish that you always be glad and smiley or something like that. Be happy and smiley is correct?
You can say Be happy and smiley in everyday English, but it is a tiny bit awkward because it seems almost like a command that your friend should follow immediately. It's also a little humorous because of that famous Bobby McFerrin song, "Don't Worry, Be Happy."
It might sound better if you said, May you always be happy and smiley. Or: I hope you're always this happy and smiley. That way, it is clear that this is a wish that you have for your friend.
is not ungrammatical, but it's not usually the way a native speaker would express a wish for ongoing happiness. Instead, we'd likely switch the verb to something more enduring.
If I wanted to say what it sounds like you're trying to say, I'd probably word it something like this:
Stay happy and keep smiling.