How to add Tomcat Server in eclipse

Do as this:

Windows -> Show View -> Servers

Then in the Servers view, right-click and add new. It will show a pop up containing many server vendors. Under Apache select Tomcat v7.0 (Depending upon your downloaded server version). And in the run time configuration point it to the Tomcat folder you have downloaded.

You can try this article. It has the info you want !!

If you have the Standard Eclipse installed (instead of the JavaEE version), then you'll need to install the JavaEE web developer tools.

You can drag and drop the Install button from here: https://marketplace.eclipse.org/content/eclipse-enterprise-java-and-web-developer-tools

Or you can go to Help > Install New Software then select the Eclipse site from the dropdown (Helios, Kepler depending upon your revision). Then select the option that shows Java EE. Restart Eclipse and you should see the Server list, such as Apache, Oracle, IBM etc.