Friday, 6 May 2022

How to Generate WAR file and deploy Our Web Service App on Apache Tomcat on Amazon EC2 Linux Server?

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Deploying Your Web App to AWS EC2

Deploying a web application can seem scary, but it’s actually a very logical process. In this guide, we will walk through how to take your Java Web Service, package it into a WAR file, and get it running on a professional server like Apache Tomcat hosted on Amazon EC2.

Step 1: Generating the WAR File

A WAR (Web Application Archive) file is like a package that contains everything your web app needs to run. Using your favorite IDE (like Eclipse or IntelliJ) or Maven, you generate this file so it can be "dropped" into a server.

Step 2: Setting Up Amazon EC2

Amazon EC2 provides a virtual computer in the cloud. For this setup, we use a Linux-based instance. You'll need to:

  • Launch an EC2 instance.
  • Configure Security Groups to allow traffic on Port 8080 (where Tomcat lives).
  • Connect to your instance via SSH.

Step 3: Installing Apache Tomcat

Apache Tomcat is the engine that actually "runs" your Java code. We install Tomcat on the EC2 instance, making sure Java is also installed. Once Tomcat is running, you can access its management page through your EC2 instance's IP address.

Step 4: Deployment and Verification

Finally, we upload our WAR file to the Tomcat webapps folder. Tomcat automatically detects it and starts the application. You can then test your Web Service using the public DNS of your AWS instance!

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