Republished articles with source attribution. This collection is separate from Diary Coding’s original guides and does not display ads.
To implement lazy initialization and conditional bean loading in a Spring Boot application, you can make use of several Spring features. Here’s a breakdown of both concepts: Lazy Initialization Lazy initialization ensures that a Spring bean is not loaded into the application context until it is explicitly required. This can help to optimize startup time […]
To get started with Spring Data JPA and Hibernate in a Spring Boot application, follow these steps: 1. Add Required Dependencies Include spring-boot-starter-data-jpa and h2 (or any other database) dependencies in your pom.xml (for Maven projects). Maven: <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-star...
Integrating Spring’s Inversion of Control (IoC) container with non-Spring-managed objects can be useful when you need to access Spring-managed beans within components or instances that are not managed by the Spring framework. Below are some common approaches to achieve this: 1. Using the ApplicationContext Directly You can access Spring’s ApplicationContext (which holds the Spring container) […]
When starting your first Spring Boot application, you might encounter some common errors. Here’s a guide on how to troubleshoot them effectively. 1. Port Already in Use Error Message: java.net.BindException: Address already in use: JVM_BIND Cause: Another application (or another instance of your app) is already using the default Spring Boot port (8080). Solution: Run […]
In Spring, you can programmatically register beans into the application context at runtime using the BeanDefinitionRegistry or ConfigurableApplicationContext. Below are different approaches depending on your use case: 1. Using BeanDefinitionRegistry The BeanDefinitionRegistry interface can be used to dynamically register bean definitions in the Spring context. ApplicationContext implementations like AnnotationConfigApplicationContext or GenericApplicationContext expose a Bean...
Below is a step-by-step guide to create a simple CRUD API using Spring Boot and an in-memory database like H2. We will use Maven to manage the project’s dependencies. 1. Set Up Your Maven Project Create a new Maven project or directory for the Spring Boot application. pom.xml Here is the file with the necessary […]
Stay curious. There is always something new to learn.
Writer and founder of Diary Coding — sharing notes, tutorials, and experiences about programming for anyone who wants to keep learning.