In this tutorial, you will learn to use Spring @Import and @ImportResource annotations to import configurations from java-config class and XML configurations respectively. These annotations work well with @Configuration annotations. Make sure you have a clear understanding of the ways to do Dependency Injections in Spring and the other related concepts. Check the related article on Inversion of Control and [...]
This article touches upon how to Handle Resources in Spring and we will look into the various interfaces like Resource, ResourceLoader, and ResourceLoaderAware. We usually do not have to make any modifications to the way in which Spring works with resources. We will specifically learn how Spring handles resources. Do not be confused with @Resource annotation. This article is about [...]
In this article, I will explain to create a Reactive Rest API in Spring WebFlux with MongoDB as the document store. We will use reactive programming in API as well as the Repository level. This is an attempt to give you a real-life application development feel in this tutorial. In the previous tutorials, I have already discussed creating nonblocking Restful [...]
In this article, you will learn to create a Functional endpoint in Spring WebFlux. In the previous article, I have introduced you to create an endpoint using the Annotations, now we will look into the pure functional programming way to achieve this. 1. Overview of Functional endpoint An Http request initiated by a client app arrives at the Server (Netty/Undertow [...]
Introduction In this tutorial, we will learn about the @Order annotation in Spring. The @Order annotation in Spring defines the sorting order of beans or components. Before Spring 4.0, this annotation supported only the ordering of AspectJ aspects. Since Spring 4.0, it supports many kinds of components e.g. even for collection injection. 1. The @Order annotation in Spring Right from [...]
Spring WebFlux is a reactive web framework, newly added to Spring 5.x. It is fully non-blocking, supports Reactive Streams back pressure, and runs on such servers as Netty, Undertow, and Servlet 3.1+ containers. The Spring WebFlux uses Project reactor underneath for reactive programming. 1. Why use Spring WebFlux? An obvious question is, why to use Spring WebFlux when we already [...]
Introduction In this tutorial, you will learn about the multiple Advice ordering using @Order in Spring AOP. Often, more than one piece of advice is applied on a single matched Joinpoints and you want to control the order in which they are executed. Spring allows you to set the Precedence using org.springframework.core.Ordered interface or @Order annotation. Rules for advice precedence [...]
1. Introduction In this article, you will learn about the Around advice in Spring AOP that runs around a matched Joinpoint's execution. Around advice is declared using the @Around annotation. You already know about the 5 types of advice from the previous article as listed below. Before advice – @Before After returning – @AfterReturning After throwing – @AfterThrowing After (finally) advice – @After Around advice – @Around 2. Around advice execution - @Around [...]
1. Introduction In this article, you will learn about the After advice in Spring AOP which runs after the matched Joinpoint exits its execution. After advice is declared using the @After annotation. It is also known as After finally advice as it gets invoked irrespective of successful exit or abruption due to exception. You already know about the 5 types [...]
1. Introduction: After Throwing advice gets invoked after a matched method finishes/aborts its execution by throwing an Exception. You already know, the name for such a matched method is Joinpoint. You can declare an After throwing advice using the @AfterThrowing annotation. You already know about the 5 types of advice from the previous article as listed below. Before advice – @Before [...]
