A New Jersey man dressed as a woman was arrested, author­ities said, after he sprayed a man with mace in a ­Courtyard by Marriott hotel in Dorchester Friday evening and forcing a partial ­evacuation of guests.

The victim told Boston ­police he met Zackery ­Johnson, 34, of New Jersey, who he believed was a woman, and went to his hotel room at the Courtyard By Marriott South Boston, on Boston Street in Dorchester, said ­David Estrada, a police spokesman.

The man grew uncomfortable when he noticed that the ­bathroom door was locked, ­Estrada said, suspicious that there was ­another person in the room.

As the man tried to leave, another man came out of the bathroom, Estrada said.

The victim was startled and ran out into the hallway.

Johnson then chased the victim , spraying him with mace, according to Estrada.

Police charged Johnson with assault and battery with a dangerous weapon.

He is scheduled to be ­arraigned Monday in Dorchester District Court.

The smell of mace filled the second floor of the hotel and forced the moving of all the guests into the lobby, said Steve ­MacDonald, a spokesman for the Boston Fire ­Department.

Patrons in all 133 occupied rooms at the hotel left their rooms as firefighters searched for the source of the odor around 6:30 p.m., MacDonald said.

Guests returned to their rooms after about three hours.

A few hotel guests complained of eye irritation, but none was injured, MacDonald said.

Firefighters’ meters did not detect any hazardous gases in the air.

“We just opened some windows to get some fresh air in there,” MacDonald said.

A Courtyard Marriott ­employee declined to comment Friday night.