Marc Nuri - Blogging about business and technology (Page 13/17)

Learn how to list installed RPM packages in a Red Hat based Linux distribution or any other distribution that uses the RPM package manager.

Linux: How to list installed RPM packages

Intro to Spring MVC testing with MockMvc, showing 3 setup methods and why standaloneSetup combines unit and integration test benefits.

MockMvc – Spring MVC testing framework introduction: Testing Spring endpoints

How to configure the Spring Boot HTTP application server port using the `server.port` property.'

Spring Boot: How to change the application port?

Four solutions for injecting prototype beans into singleton beans in Spring: ObjectProvider, ObjectFactory, @Lookup, and scoped proxies with runnable examples.

Spring Bean Scopes: Singleton with Prototypes

Complete guide to Spring Framework bean scopes with runnable code examples. Covers singleton, prototype, request, session, application, and websocket.

Spring Bean Scopes: Guide to understand the different Bean scopes

Java 10 was released on March 20, 2018, introducing a new six-month release schedule and several new features. Learn what's new in Java 10.

Java 10: Testing the new release

Convert a List to a Map using Java Streams and Collectors.toMap(). Covers handling duplicates, order, immutable maps, and null values.

Java Streams: Convert List into Map

How to define and test custom Spring Data MongoDB repository methods for a book repository with unit tests.

Spring Data MongoDB Custom repository implementation

Learn why field injection with @Autowired is discouraged in Spring and the recommended alternatives to avoid this warning.

Field injection is not recommended – Spring IOC

How to use a docker + systemd only approach to deploy containers as Linux services without the need for third party tools or complex deployment descriptors.

Docker container as a Linux system service

Learn how to configure a Spring Boot application to run as a Linux service. Complete guide for System V init.d and systemd with security best practices.

Spring Boot as a Linux service

How to create an auto-increment sequence in MongoDB with Java using a Spring service and a Spring-Data document for Mongo.

Spring-data + Mongo: Auto-increment sequence in MongoDB using a Spring service