Error 404 Tomcat homepage http://localhost:8080/ not displayed

HTTP Status 404 - /
type Status report
message /
description The requested resource is not available.
Apache Tomcat/7.0.61

If you are are getting a 404 HTTP Error Page while trying to access http://localhost:8080 just try to stop the server and check if the Catalina service is running, if yes then you need to kill the process and then restart the server.

If you are using Tomcat App Server using Eclipse IDE then you can try the following,

1. Right Click on your server (Tomcat v7.0 Server at localhost) and select "Properties"
2. Now Click on "Switch Location" button.
3. Restart your server.