Using Tomcat, Google Chrome cannot open localhost:8080 but Safari can

I configured the Tomcat server on My Mac, set the port to be "8080" and started Tomcat, but I cannot open http://localhost:8080 with Chrome, and the Chrome return a message:"ERR_EMPTY_RESPONSE". However, When I tried "localhost:8080", it works! how can I solve this problem?

I've tried to find solutions on internet, someone says it maybe the problem of host file, I checked host file and found no problem. And I also tried http://127.0.0.1:8080, but it didn't work.