How to Deploy a Web Application Using the Apache Tomcat Manager (Windows)

To deploy a web application to Apache Tomcat, you can copy a WAR file to the application base directory, e.g., c:/Tomcat8/webapps. This operation of course presupposes we know the application base directory. We could consult server.xml and look up the Host element to determine the directory name. A more straightforward approach, though, is to use the Tomcat manager web application.

To learn how to deploy a web application using the Apache Tomcat manager web application, follow these 12 steps:

1. Stop the Tomcat server.
2. You will need to edit CATALINA_BASE/conf/tomcat-users.xml, e.g., c:/Tomcat8/conf/tomcat-users.xml to add credentials to access the Tomcat manager web application.
3. Add the following XML statements immediately before the root end tag, i.e., </tomcat-users>:

   <role rolename="manager-gui"/>
   <user username="your name" password="your password" roles="manager-gui"/>
   &lt/tomcat-users>
   	

   Replace "your name" and "your password" with a user name and password of your choosing (no embedded spaces).
4. Save your changes.
5. You'll need to create a WAR file so that you will have web application to deploy. The instructions for creating a WAR file were contained in steps 1 and 2 in How to deploy a WAR file in Apache Tomcat (Windows). Complete only steps 1 and 2. If you have already completed that project, delete the WAR file (DemoWebsite.war) and the unpacked folder (DemoWebsite) from CATALINA_HOME/webapps.
6. Start the Tomcat server.
7. In the address area of your browser, type http://localhost:8080/manager/html and submit that address to the browser.
8. You will be challenged for credentials. Provide the user name and password you specified in tomcat-users.xml (make sure to provide the correct spelling and case): Click OK
9. The manager web page is now displayed. Scroll down until you see the Deploy section: Note that I have already provided the Context Path (/DemoWebsite) and the WAR URL ((c:/DemoWebsite/DemoWebsite.war) in the text boxes. Fill in the text boxes as I've done. Then click Deploy.
10. The manager will indicate that the web site has been deployed:
11. In a separate tab in your browser, type http://localhost:8080/DemoWebsite/DateJSP.jsp and submit that address to the browser.
12. The web page will be displayed verifying successful deployment: