If it can be accessed locally, there should be no problem with the service code, and the problem may be the listening address.

Server.address=0.0.0.0, so as to listen to all network card addresses.

Remember121.42.207.92: 8081when visiting. You must have a port number, and you can't access it without it.

The details should still be judged according to the mistakes thrown, and the information is a little less. ...