Tag: Java
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Tests in Spring Boot with JUnit 5 and Mockito
In this article, I will configure the tests in Spring Boot with JUnit5 and Mockito. I will also write some unit tests with JUnit 5 and Mockito.
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Upload files with Spring Boot and MultipartFile
In this article, I will show how to upload files with Spring Boot using MultipartFile. I’m gonna also explain the best option to store the images, explaining what’s a CDN and what’s an NFS.
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Exception Handler with Spring Boot
In this article I show how to create an Exception Handler with Spring Boot, creating an aspect and a custom exception in Java.
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Build your Spring Boot Microservice with Kubernetes
In this article I will build my first Spring Boot microservice with Kubernetes in less than 10 minutes. For that, I will build a microservice using Spring Initializr and create my Kubernetes cluster in Minikube.
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Microservices Architecture, advantages and disadvantages
In this article I will explain the advantages and disadvantages of the microservices. Why choosing the microservices architecture. Which technologies to use with the microservices. Which design patterns to use with the microservices.
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Liquibase on Maven with SQL files
In this article, I show the usage of Liquibase to manage the database migrations with SQL files. I also show how to configure Liquibase on Maven.
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Project Lombok and Mapstruct with Spring Boot
In this article, I show the configuration and usage of two useful tools which are Project Lombok and Mapstruct with Spring Boot, to reduce a lot of code.
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Spring JPA and database connection with Spring Boot
In this article, I show the Spring JPA configuration for the database connection with Spring Boot, and the entities and Spring Repositories creation to read the data.
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Spring Security and JWT
In this post I show the usage of Spring Security with the JWT base authentication. For that, I use the HTTP filters and a service Provider for the creation and validation of the JWT.
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Controllers and Services with Spring Boot
In this article I will show the Controllers and Services of Spring Boot, the dependency injection pattern and the 3-tiers architecture.
The Dev World - Sergio Lema 