Technical… Theoretical… Practical…
Introduction In this tutorial we will see how to work with IN, OUT and INOUT parameters in Stored Procedure using Spring Data JPA. We will also call a stored procedure having no parameter at all. I am going to use MySQL server,…
In this tutorial we will see how to map custom query results into DTO in Spring Data JPA. Situations occur while you are unable to return the entity object(s) as results from your Spring Data JPA Repository and instead you are writing…
Introduction This tutorial will show you an example on how to document REST APIs using OpenAPI 3. When creating a REST API, good documentation is instrumental. Here we will use OpenAPI 3 in Spring application for creating documentation for REST APIs. We…
Introduction The tutorial, REST over HTTPS with client certificate authentication, will show you how we can use client certificate to handshake with server along with basic authentication for consuming the service. Even you can use header authentication along with client certificate to…
In this tutorial we will see an example of event driven streaming using Spring Cloud Stream and Apache Kafka streaming platform. How do we deal with some events, such as, a new user has registered to a portal, an order was placed,…
Introduction In this tutorial we will create an example on Spring Boot MVC and Hibernate CRUD. CRUD is an acronym that means Create, Read, Update and Delete operations. In my other tutorial I had also created Spring Boot MVC and JDBC CRUD…
Introduction In my other tutorial I had shown how to create an example on Spring MVC and JDBC CRUD example using annotations only, but here I am going to use Spring Boot framework. I did not update the other tutorial keeping in…
In this tutorial we will see how to create Datasource in Spring Boot application in different ways. We need to create datasource in our applicationin order to interact with database and perform database operations in Spring or Spring Boot applications. You can…
Introduction We will see the use of @WebMvcTest annotation in Spring MVC applications. The Spring MVC application may be Spring Boot application as well. The @WebMvcTest annotation can be used not only to test Spring Controllers but also Spring REST Controllers. We…
Introduction In this tutorial we will create an example on how to manipulate data from RSS Feed and write to files periodically using Spring Integration framework. This guide uses Spring Integration using Java configuration to retrieve data from RSS feed, manipulate and…