WAR File and its deployment in Java

Step 1 : Right Click on Project -> Export

Step 2 : In Search tab -> WAR file -> Next

Step 3 : Select Destination/Location for WAR file and select Tomcat version for deployment and at last click Finish.

You can see below the WAR file ServletDemo.war is created on selected location.

Step 1 : Start Tomcat Server (e.g. Tomcat 8.5)

Step 2 : Open Home Page of Tomcat

Step 3 : Clicking on Manager App Button will redirect to following page.

Scroll down you will see deploy section :

Step 4 : In War File to Deploy browse your war file and click on deploy.

After successfully deployment message will come OK.

Step 5 : Now Restart Your Server or shutdown and start again. And you can open/run your project.

Create WAR File of project by Eclipse