ubuntu tomcat localhost can access website,but outside browser can not open

Question

I encounted a strange problem. I have installed tomcat, jdk, mysql in server. And when I run the command w3m http://127.0.0.1:8080 , I can see the 'It works !' Page. But when I input the IP address in browser. It says ERR_CONNECTION_TIMED_OUT . And even I closed the firewall in server. It also can not access the website. I don't know why it happened. Hope someone can tell me what should I do. Thank you!

Answer 1

I have solved the problem. The problem is cloud server provider. The provider closed the 8080 port. When open the port, it works well.