Online in the same Wifi

You just need to make sure that both devices are connected to Wifi and that the invited person joining the game is logged into a Microsoft account.

Host player:

You need to start the game first, entera archive as the online world

You need to start the game first, entera archive as the online world, and then dishes inthe game Select the opening option for the LAN

remember your port number

Your server IP is localhost:port, you need to send them to your online partner.

Member player:

You need to ask the host player for port,then add a server to the multiplayer game sector of the game.

The name of the server is arbitrarily, and the server address is filled in the localhost:port(like localhost:25565) provided by the homeowner, and the server can be added.

Success!