Spring Tutorial - 2 - Dependency Injection & Inversion of Control without Spring

In this episode of the Spring series, I explain to you the concept of Dependency Injection and Inversion of Control and then show you how to do it in a Java Project.

Code: https://gitlab.com/kody-simpson/spring-framework/dependency-injection-and-inversion-of-control-without-spring

  • 0:00:00 - Intro
  • 0:00:47 - What is a dependency?
  • 0:02:45 - What is Dependency Injection?
  • 0:05:16 - What is Inversion of Control?
  • 0:06:45 - Manual Dependency Injection (without Spring framework)
  • 0:09:51 - Tight coupling
  • 0:11:18 - Loose coupling
  • 0:14:21 - Example 1 (Constructor Injection)
  • 0:17:38 - Example 2 (Using interface to support “swappability”)
  • 0:23:48 - Outro

#spring-boot #java #programming

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Spring Tutorial - 2 - Dependency Injection & Inversion of Control without Spring
Were  Joyce

Were Joyce


Spring Integration AWS 2.5.1 and Spring Cloud Stream Kinesis Binder 2.2.0 Available

Dear Spring Community,

Today it’s my pleasure to announce releases of Spring Integration for Amazon Web Services extension versions 2.5.1 and Spring Cloud Stream Binder for AWS Kinesis 2.2.0.

These releases can be downloaded from Maven Central:

compile 'org.springframework.integration:spring-integration-aws:2.5.1'

If you don’t use Kinesis Binder. Or via Binder dependency:

compile 'org.springframework.cloud:spring-cloud-stream-binder-kinesis:2.2.0'

Spring Integration for AWS extension of 2.5.1 has some minor bug fixes after the previous 2.5.0 announcement.

The Spring Cloud Stream Binder for AWS Kinesis 2.2.0 is the first release in the project generation which is based on a new independent Spring Cloud for AWS artifact. It also was upgraded to the latest Spring Cloud 2020.0.3 and has some other bug fixes and improvements.

#[object object] #aws 2.5.1 #spring cloud #spring cloud stream kinesis binder 2.2.0 available #spring integration aws 2.5.1 and spring cloud stream kinesis binder 2.2.0 available

Dependency Injection Implementation in Core Java

Implement your own lightweight Dependency Injection in core Java without using any framework.


This article will guide you to understand and build a lightweight Java application using your own Dependency Injection implementation.

Dependency Injection … DI… Inversion Of Control…IoC, I guess you might have heard these names so many times while your regular routine or specially interview preparation time that you wonder what exactly it is.

but if you really want to understand how internally it works then continue reading here.

#java #tutorial #dependency injection #inversion of control #dependency injection implementation in core java #core java

Were  Joyce

Were Joyce


Introduction to Spring Boot and JDBCTemplate: Refactoring to SpringData JPA

Introduction to Spring Boot and JDBCTemplate: Refactoring to SpringData JPA.

Refactoring is the process of modifying a software system without changing its desirable behavior. It was necessary to have an application integrated with the relational database using the Spring JDBC Template in the first parts. The Spring JDBC Template is a powerful tool that facilitates productivity. However, there is a way to simplify the code even further with Spring Data JPA. The purpose of this post is to refactor the project to use Spring Data JPA.

Spring Data JPA, part of the larger Spring Data family, makes it easy to implement JPA-based repositories easily. This module deals with enhanced support for JPA-based data access layers. It makes it easier to build Spring-powered applications that use data access technologies.

A safe code refactoring requires the use of tests to ensure that the compartment is not changed. The use of tests, fortunately, is adopted as a minimum standard, including several methodologies such as TDD that preach the creation of tests at the beginning of the development process.

#java #tutorial #spring #spring data #java tutorial #spring tutorial #spring data jpa

Were  Joyce

Were Joyce


Spring Framework Tutorial

What is the spring framework in Java?

The spring framework is one of the most versatile frameworks in java which is used to bring down the complexity of the development of enterprise-grade applications. The first production release of the spring framework was in March 2004 and since then, this robust and open-source framework has gained tremendous popularity, so much so that it is often referred to by developers all around the world as the “framework of frameworks”. Spring is a loosely coupled, open-source application framework of java. It is lightweight and the inversion of the control container for the Java platform. A large number of Java applications use the core features of the spring framework. In addition to that, extensions have also been developed to allow developers to develop Web Applications on top of the Java Enterprise Edition platform.

#spring #spring-framework #java #spring framework tutorial #why should one learn about the spring framework? #what is the spring framework in java?

Were  Joyce

Were Joyce


Spring Boot 2 With JSP View

In this tutorial, I am going to show you how easy it is to create a web application with Spring Boot 2, along with the embedded Tomcat + JSP template and JSP views.

What You’ll Need

1. Project Structure

You can get the blueprint from the Spring Initializer page.

2. Project Dependencies

3. Configuration

4. Controller and View Template

5. Run With Maven

#java #tutorial #spring boot #jsp #spring boot 2 #spring boot tutorial #jsp view