Spider-Man will spit spider silk:
In the movie, Spider-Man was bitten by a spider, so his gene changed and he could spit out spider silk by himself.
Comics and cartoons: Spider-Man was bitten by a spider, so he has the ability to climb the wall, and his strength has increased, but he still can't spin silk. But in cartoons and cartoons, Spider-Man is a good student, so he is very strong in physics. He made a spider silk sprayer himself, and then he knew the material of spider silk because of genetic variation. He made some spider silk and put it into the spider silk sprayer, so he could spin silk, but it was easy to have no spider silk.