Source code for the course: Spring Boot 3, Spring 6 and Hibernate for Beginners

deepseek java sdk

Spring Boot Boilerplate is a starter kit. This project includes : Spring Boot(4.0.2), Spring Data JPA, Spring Validation, Spring Security + JWT Token, PostgreSQL, Mapstruct, Lombok, Swagger (Open API)

✨ Saas Enterprise Resource Plan (开源Sass AI ERP系统)

Source code for the course: Spring Boot Unit Testing

This is an example application to show howto use Spring Boot 4, Angular 21, Kafka with Streams and Mongodb with the reactive features of Spring in a clean architecture and a Helm chart for the Kubernetes setup. Structurizr is used for C4 diagrams. Standalone Components are used with Angular.

Source code for the course: Spring Boot 4, Spring 7 and Hibernate for Beginners

Source code for the course: Spring Boot 4 Project - Build a Job Portal Web Application

This project shows howto use Angular 21 and Spring Boot 4 and Jpa with a Maven build in clean architecture. For development/production the H2/Postgresql databases are used. The databases are managed with Liquibase. Structurizr is used for the diagrams. Standalone Components are used with Angular.

Personal Portfolio Website (Charity, GitHub, & Brew APIs built with Spring Boot & ReactJS)

Sample Data Manager with Thymeleaf Frontend & Spring Boot Backend (using JPA for DAO layer)

Seoul National University TimeTable service

This is an project to show the use of Angular 21, Spring Boot 4, H2/Postgresql with Jpa, Liquibase, Kafka and Gradle and a Helm chart for a Kubernetes deployment. The frontend uses D3 for charts. For dynamic queries the frontend uses Drag'n Drop and the Backend Jpa Criteria api and the frontend displays the results in Table/Tree Angular components.

Source code for the course: Deploy Spring Boot Java Apps Online to Amazon Cloud (AWS)

This project shows howto use Angular 21 and Bing Maps and Spring Boot 4 and Jpa with a Gradle build in clean architecture. For the communication between the frontend and the backend GraphQl is used. For development/production the H2/Postgresql databases are used. The databases are managed with Liquibase. Angular Standalone Components are used.

Screaming Architecture, Clean Architecture, Event-Driven Architecture, Clean Code, DDD, SOLID, Test Pyramid, Patterns (Ambassador, Circuit Breaker, Mediator, Outbox, Result, Retry, Strategy), Java 25, Spring Boot 4, Kong, Keycloak, Kafka, MongoDB, Redis, Elastic, Testcontainers, Docker

Sample Cron job using Spring annotations

Sample App to manage Shopping Cart items (add item, calculate total, tax, net price..). Focus on test coverage.

Collection of 300+ best practices for Java persistence performance in Spring Boot 4 applications