Core Java Web Components: Servlets, JSP, Filters, and Listeners
Java web applications rely on standardized components defined in the Jakarta EE (former Java EE) specification. This article explores the foundational elements—Servlets, JSPs, Filters, and Listeners—and how they interact to handle HTTP requests, manage state, and extend behavior.
Servlet Lifecycle and Configuration
A servlet is a Java class tha ...
Posted on Sat, 20 Jun 2026 17:59:34 +0000 by MG-WebDesigns
Displaying Database Data in a Dropdown List with SpringMVC
This tutorial demonstrates how to populate a dropdown select element with data retrieved from a MySQL database using SpringMVC.
Environment
Tomcat 8.5
MySQL 8.0
Eclipse
SpringMVC Framework
Database Query Layer
First, create a DAO class to handle database operations for retrieving class information.
public class GradeDao {
public List<G ...
Posted on Tue, 26 May 2026 22:46:34 +0000 by hhisc383
A Simple Example of AJAX in a Spring MVC Application
// Fetch book details via AJAX
$('.book-link').click(function(event) {
event.preventDefault();
const bookId = $(this).data('id');
fetchBookDetails(bookId);
});
// Test function to set a value
$('#testButton').click(function() {
$('#bookIsbn').val('Test ISBN');
});
});
function fetchBookDetails(bookId) {
$.ajax({
...
Posted on Mon, 18 May 2026 12:54:30 +0000 by Charles Wong