Prerequisites and Setup To integrate Spring Boot with the OpenAI API, you need to have **Java 17** or later installed on your system. Additionally, you should have a basic understanding of **Spring Boot** and its configuration. For more information on getting started with Spring Boot, visit our Spring Boot tutorial. You will also need to…
When you have 200 concurrent users hitting a single-threaded service, you’ll see the connection pool exhaustion error: “java.sql.SQLException: Connection is closed”. This is because the default connection pool size is not sufficient to handle the load. To fix this, you need to implement proper testing using JUnit and Mockito. TL;DR: In this tutorial, you will…
Prerequisites for Spring Boot Unit Testing To get started with Spring Boot unit testing, you should have a basic understanding of **Spring Boot**, **JUnit 5**, and **Mockito**. Spring Boot is a popular framework for building web applications and microservices, while JUnit 5 is a testing framework that provides a lot of features for writing unit…
Prerequisites for Spring Security Implementation To implement a custom UserDetailsService with Spring Security, you will need to have the following dependencies in your project. The required dependencies include Spring Security, Spring Data JPA, and a database driver. For this example, we will use H2 as our database. The Java version required for this implementation is…