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01b: ♦ 13 Spring basics Q8 – Q13 interview questions & answers

This extends 13 Spring basics Q1 – Q7 interview questions & answers. Q8. Can you describe the high level Spring architecture? A8. A Spring Bean represents a POJO (Plain Old Java Object) performing useful operation(s). All Spring Beans reside within a Spring IoC Container. The Spring Framework hides most of…...

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03: Spring boot MVC tutorial with thymeleaf & bean validation

Step 1: Create a “simple-spring-mvc” maven project.

Step 2: Import the project into eclipse. File > Import -> Existing Maven Projects and select “C:\Users\java-_000\projects\simple-spring-mvc”. Step 3: The pom.xml file should look like:

“spring-boot-starter-thymeleaf” is used instead of “spring-boot-starter-web” as it allows you to use htmls instead of JSPs…...

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♦ 11 Spring boot interview questions & answers

Q1. What is the key benefit of using Spring boot? A1. The key benefit is that you can “build a production ready application from scratch in a matter of minutes”. Q2. How does spring boot enable you to “build a production ready application from scratch in a matter of minutes”?…...

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Spring IO tutorial in 6 steps

Spring IO Platform is all about “list of dependencies and their versions that work well together”. It is implemented as a Maven POM file via Maven Bill-of-Materials dependency that you can import into your projects to set the versions for dependencies. Spring Boot is built on top of the “Spring…...

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02: Simple Spring Boot Restful Web Service Tutorial

This tutorial extends Simple Spring Boot Tutorial in 8 steps. Step 1: The pom.xml file that was created in the previous Spring boot tutorial needs to be changed from “spring-boot-starter-actuator” to “spring-boot-starter-web”

Step 2: Add additional logic to the “App.java” to turn it into a controller to be invoked…...

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01: Simple Spring Boot Tutorial in 8 steps

Assumes that your Java, Maven, and eclipse are set up as per: Setting up Java, Maven, and eclipse Step 1: Create a simple maven project using the maven “archetype” plugin.

The above command creates a folder “simple-spring-boot” Step 2: import it into eclipse by choosing File –> Import –>…...

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Spring, JavaConfig (i.e @Configuration) & JMS by example

Step 1: Define the messaging system connectivity, destination (e.g. topic or queue) and message selector properties via a YAML or .properties file. Here is an example of application.yml file.

Step 2: MQTopicConnectionFactory The Java based Spring configuration defining the connection factory.

Step 3: Destination The Java based Spring…...

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07: Debugging Spring Transaction Management

Never just trust that adding @Transactional annotation is going to create a transactional boundary for your service layer. EventRestController –> EventMergeProcesorImpl –> EventControlDAOImpl The @Transactional annotations added to “public” methods of the EventMergeProcesorImpl. Spring creates a proxy around the “EventMergeProcesorImpl”. So, here are a few tips to debug #1. Run…...

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