Win 7 sets the firewall's exceptional port number so that the domain network can access the background, publish a website under tomcat, and send LAN access. In this case, you can disable the firewall or enable the firewall and set an inbound rule for the firewall to allow colleagues around you to access this website. setting Method: win 7-> Control Panel-> viewing method: category-> network and internet-> View network status and tasks-> windows Firewall settings-> advanced settings-> inbound rules-> create rules-> port-> next-> TCP -> specific local port, enter a port number-> next-> allow connection-> next-> complete description: After the settings are complete, you do not need to log out or restart your computer. If you cannot access this port number through an IP address at this time, make sure that your IP address has changed. Start-> (run or) run-> cmd-> ipconfig check the local IP address .: