Are you having a hard time to configure and manage your servers for deploying your Java Web Applications? If yes then you have come to the right place. So in this article, I will show you how to deploy Java Web application on AWS. The process of deploying your Java web application on AWS is completely hassle-free and is less time-consuming. Learn all about AWS with the AWS Course Online.
Here I will be covering the following pointers:
- What is AWS?
- Why Java Web Application in AWS?
- How to Deploy Java Web Application in AWS?
So let us begin with our first topic.
What is AWS?Elastic Beanstalk is an easy-to-use service for deploying and scaling Java web applications. Elastic Beanstalk supports several platform configurations for Java applications, including multiple versions of Java with the Apache Tomcat application server and Java-only configurations for applications that do not use Tomcat.
The Java-only option allows customers to include any required library JAR files in the source bundle for Java web applications that don’t use a web container or use a different one, such as Jetty or GlassFish. Once deployed, Elastic Beanstalk automatically manages capacity provisioning, load balancing, and Auto Scaling. This approach is appropriate for companies deploying Java applications that include the following criteria:
Require minimal OS changes. (Note that Elastic Beanstalk configuration files support advanced platform and OS configuration options. However, this requires additional Elastic Beanstalk packaging effort and expertise.) Either run in Apache Tomcat 7 or 8 or are packaged with their own web container
Elastic Beanstalk supports the following packaging and deployment mechanisms:
Custom applications developed and deployed directly to Elastic Beanstalk using Eclipse and the AWS Toolkit for Eclipse
Applications packaged into a JAR, WAR, or ZIP file, then deployed with the Elastic Beanstalk console, EB CLI, or Elastic Beanstalk API calls. To deploy multiple applications to one Elastic Beanstalk environment, customers can bundle multiple WAR files into a single ZIP file.
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Steps to Deploy a Java Application to AWS Cloud
Before proceeding further there are a few prerequisites for this.
JDK 8 or higher Tomcat 8 or higher Eclipse IDE for Java EE Free AWS account
Once you have all of this then we are good to go.
First, let us create a sample Java Web Application in Eclipse. For that Click on File -> New -> Dynamic Web Project. Now name the project with whatever name you want. Here I am naming it s DemoWebApp. Click on Next and then click on Finish. After this, you will see that your project has been created in your workspace.
Now you can create any web application such as servlets, JSP, etc. Here I will select JSP. For that right-click on DemoWebApp -> New -> JSP file. Name the file as sample.jsp. Once you do this then in the body section of this file, write a simple text such as ” This is a sample JSP” or whatever that you want.
Now I will test this application locally before going to AWS. For that, you need to navigate to your tomcat directory using the command prompt (since I am using Windows 10 OS) and use the command startup.bat. This will start tomcat.
Once Tomcat is started, go to your project on Eclipse. Right Click on Project and click on properties. Then click on Server and select Tomcat Server. Click on apply and close.
Now right-click on your project-> Run as-> Run on Server. If everything works you will be able to see the output that is the text ” This is a sample JSP”. With this, we have tested our application locally. Now right-click on your project -> Export -> WAR file. Here you enter the destination where you want to save the war file.
Now we will deploy this application on AWS. For this go to the AWS homepage. Click on Services -> Compute -> Elastic Beanstalk. Now click on create a new application. Enter the name of the application and create a new environment for it. Now select Web Server Environment. Now in Base Configuration, Select Tomcat in the Preconfigured Platform. In the Application Code select the WAR file that we created in the previous step. Now click on Upload.
Uploading the WAR file will take a few minutes. Once it is done you will see the following page. Here you can see the URL. Click on the URL and you will see a JSP with your text message in it.
So this is how you deploy the Java web application in AWS. With this, we have come to the end of this article on the Deploy Java Web App in AWS. I hope you have understood everything that I have explained here.
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