Do you know that java is one of the most used programming languages throughout the world to develop dynamic web applications? A web application is the computer software that is used to perform different tasks on the web browser through the internet. Java allows us to establish and deploy the web application on a server via some technologies like servlet and JSP. You can make a static website with HTML pages but for the dynamic website, you need to use server-side technology.
The process of a web server handles the request and response of clients from processing the request of the client by using the related protocols. The main function of a web server is to respond to the stored requests with web pages. It is used as the mediator between the server and client such as Apache is a leading web server. Whereas a client is software that allows users to send requests and communicate them with the server.
Web Application Using Java Servlet
If you want to develop a web application then make sure that you have mentioned tools installed on your PC:
- Java
- IDE ( Eclipse or Netbeans)
- Database (Oracle or Mysql)
- Server (Tomcat)
After that follow the below steps to establish a good quality web application:
Step 1è Open Eclipse makes a vibrant Web Project
- Open the Eclipse IDE, navigate to File
- New
- Dynamic Web Project
If you do not find the dynamic web project in your list then go for the other option and look for it. Click on it to continue.
Step2è Give Project Name
Add the particular project name then click next to continue
Pursue the prompt and tick the produce web.xml deployment descriptor
Now, the project is ready
Step3è Generate a Servlet
At this moment, generate a servlet by right-clicking on the Java Resources/src folder. To make a servlet right click on the src folder and find the way to the New-> Servlet menu. Grant the Servlet name.
Click on the finish button, it will generate a TestServlet as specified.
Step4è Insert the Servlet Jar file
If you see that your servlet is displaying many errors then it may be because you have not added the servlet-API jar file yet. To insert the jar file, right-click on the project and choose the configuration alternative by navigating to construct Path-> organize Build Path option.
- Now, click on the Add External JARs option.
- Pilot to the index where you have installed your server and choose the servlet-api.jar file
- Connect Open to continue.
- Now choose the Apply and Close option. You will see the jar file added to the project.
Step5è Make an HTML or JSP file
At this moment, you will have the web application ready. You can create HTML pages that you are interested to display on the website.
To create an HTML page, right-click on the WebContent folder and choose the New HTML file option from the New-> HTML File menu with the name index.html.
You have created the HTML file
After that, map and run the file. It may take some time to load the application.