Spring boot rest api can be easily configured to upload a single file, multiple files or an object containing both files and other properties. There are a number of ways to create a rest api which can accept a file. We will try to dive in multiple examples…

A quick and practical guide to using Apache Kafka with Spring.

JPA and Hibernate support 3 kinds of projections. Picking the right one and is often main difference between a slow and an efficient use case implementation.

Learn multiple ways to run a Spring Boot without a web server

This is a simple hello world example using Spring Framework 4. We will use Spring Boot and Spring Initializer to get things kicked off easily. Video Tutorial Follow this quick video tutorial to get a…

Learn the several ways that Spring MVC and Thymeleaf can work together to render data.

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<p>On behalf of the Spring and Apache Geode communities, it is my pleasure to announce the release of <em>Spring Boot for Apache Geode</em> (SBDG) <code>1.1.10.RELEASE</code>, <code>1.2.10.RELEASE</code>, <code>1.3.4.RELEASE</code>…

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<p>On behalf of the Spring and Apache Geode communities, it is my pleasure to announce the release of <em>Spring Session for Apache Geode</em> (SSDG) <code>2.1.11.RELEASE</code>, <code>2.2.5.RELEASE</code>, <code>2.3.1.RELEASE</code>…

Monitoring and observability are essential in distributed environments. Spring Boot comes with the Actuator module which provides the health status and integrates with Micrometer to emit metrics.

Learn how to fix the Hibernate "HHH000104: firstResult/maxResults specified with collection fetch; applying in memory!" warning message.

Hibernate provides several APIs to query data. Some are very flexible, others are designed for a specifc purpose. Let me show you when to use which.

Learn how to speed up the data access layer in a Spring Boot application using the Hypersistence Optimizer performance monitoring utility.

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<p>With the recent release of Spring Security 5.4, we’d like to announce that maintenance for <a href="https://github.com/spring-projects/spring-security-saml">Spring Security SAML Extensions 1.x</a> will end on 6 October 2021.</p>…

<p>Hi, Spring fans! Welcome to another fun-filled and fantastic installment of <em>This Week in Spring</em> where we review the week that was in the Java ecosystem. It’s been quite a week indeed. SOoo many new releases and so many interesting things going…

Introduction While doing my High-Performance Java Persistence training, I came to realize that it’s worth explaining how a relational database works, as otherwise, it is very difficult to grasp many transaction-related concepts like atomicity, durability…

Learn how to inject prototype beans into a singleton-scoped bean instance.

In Spring property (or yaml) files we can reference other properties using the ${..} syntax. For example: 1 2 3 external.host=https://api.external.com

Hibernate's native ID generator and the GenerationType.IDENTITY seem to do the same thing. Which one should you use?

The High-Performance Java Persistence Newsletter features articles, videos, and answers to common StackOverflow questions.