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Creating a MySQL Connection Class in Java

Creating a MySQL Connection Class in Java June 19, 2026 When I started learning Java, one of the first tasks was connecting to a MySQL database. To achieve this, it is common practice to create a class responsible for centralizing the connection configuration and providing Connection objects to the rest of the application. Basic Example package com.egga.appvet.includes; import java.sql.DriverManager; import java.sql.SQLException; import java.sql.Connection; public class ConexionBD { private static final String URL = "jdbc:mysql://localhost:3306/AppVet"; private static final String USER = "tuusuario"; private static final String PASS = "tupassword@"; public static Connection getConnection() throws SQLException { return DriverManager.getConnection(URL, USER, PASS); } } In this example, three constants are defined: URL : the MySQL database address. U...
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Try-with-resources in Java

Try-with-resources: A Solution for Automatic Resource Management in Java Introduction In Java, managing resources such as files, database connections, or sockets requires properly closing them to avoid memory leaks or resource leaks. Traditionally, this was done using finally blocks, but that approach was more verbose and error-prone. Because of this, Java introduced try-with-resources (since Java 7), a simpler and safer way to manage resources. What is try-with-resources? It is a try statement that allows you to declare resources that will be automatically closed when the block finishes. It works with objects that implement the AutoCloseable interface (or Closeable ). Key Features Automatically closes resources when exiting the try block Eliminates the need for finally blocks Reduces boilerplate code Improves...
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Replacing Tomcat: Configure Jetty with Spring Boot

 I this article we will learn how to configure Jetty with SpringBoot. I will not use Spring Initializr. Jetty is fast and lightweight, making it ideal for high-performance applications. Being modular, it allows enabling only the necessary components, optimizing resource usage. Jetty efficiently handles high traffic volumes, enabling applications to scale seamlessly. Add Dependencies to pom.xml: <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.egga</groupId> <artifactId>examplejetty</artifactId> <version>0.1</version> <packaging>jar</packaging> <properties> <project.build.sourceEncoding>UTF-8</project.build.s...
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Building a Simple Web Form with Jetty and Servlets

In this article, we will learn how to create a small web application using Java, Jetty, Thymeleaf, and Servlets. We will not use frameworks like Spring Boot because our goal is to understand how a web application works. Before beginning, we need the following requirements: Understanding how a web application works Fundamentals of programming Java 11 or higher Knowledge of how Maven works An IDE of your choice In my case, I will use NetBeans. In NetBeans, I will create a Maven Project → Java Application. We need to edit the pom.xml file because it contains the following dependencies: <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">     <modelVersion>4.0.0</modelVersion>     <groupId>com.egga</groupId>     ...
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