Introduction to spring boot
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This document provides an overview of developing a web application using Spring Boot that connects to a MySQL database. It discusses setting up the development environment, the benefits of Spring Boot, basic project structure, integrating Spring MVC and JPA/Hibernate for database access. Code examples and links are provided to help get started with a Spring Boot application that reads from a MySQL database and displays the employee data on a web page.
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But audience beware, this is not your standard live-coding session'. Attendees will have a vital say in the session's content by defining the applications requ irements. Should it be an app to track your kitchen cupboard contents or do you want a simple task planner? It's up to you! Should it use MongoDB or Couchbase? You decide! Do you want an AngularJS front-end with a RESTful backend or do you prefer a classic web app with Thymeleaf templates? It's your call! Seriously.
During the session you get to make these decisions by participating in an online vote. And you will discover that Spring Boot is up to the task no matter what choices you make.
So what are you waiting for? Bring your own device, help shape the application that we're building and learn lots about Spring Boot in the process.
This session is intended for Java software engineers with an interest in Spring Boot. Some Spring experience could come in handy, but is not strictly necessary. After this session, you will know enough to start your own Spring Boot project.
Spring Boot
Spring BootJaran Flaath Spring Boot is a framework that makes it easy to create stand-alone, production-grade Spring based applications that you can "just run". It allows you to create stand-alone applications, embed Tomcat/Jetty directly with no need to deploy WAR files, and provides starter POMs to simplify configuration. Spring Boot applications are run by adding a spring-boot-gradle-plugin and can then be run as an executable JAR. Features include REST endpoints, security, external configuration, and production monitoring via Actuators.
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Spring Boot & Actuators
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JOHN HUMPHREYS VP OF ENGINEERING INFRASTRUCTURE SYSTEMS, NOMURA
Spring Boot is a modern and extensible development framework that aims (and succeeds!) to take as much pain as possible out of developing with Java. With just a few Maven dependencies, new or existing programs become runnable, init.d-compliant uber-JARs or uber-WARs with embedded web-servers and virtually zero-configuration, code or otherwise. As an added freebie, Spring Boot Actuator will provide your programs with amazing configuration-free production monitoring facilities that let you have RESTFUL endpoints serving live stack-traces, heap and GC statistics, database statuses, spring-bean definitions, and password-masked configuration file audits.
Spring Boot Whirlwind Tour
Spring Boot Whirlwind TourVMware Tanzu Spring Boot provides a convention-over-configuration approach for building stand-alone, production-grade Spring-based Applications that you can "just run". It takes an opinionated view of configuring Spring applications and applications can be started using a single command. Spring Boot Actuator provides production-ready features to monitor and manage applications with no additional coding required.
Maven
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Spring boot competitive tests
Spring boot competitive testsSkillPracticalEdTech SkillPractical has Spring learning path that helps the user to learn the Java from scratch. If user have any questions on Java Spring while attempting tests, he can post a question in SkillPractical community. They will get an answer from our expert consultants.
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Introduction to spring boot
- 1. Santosh Kumar Kar, Lead Software Engineer, EPAM [email protected]
- 2. Before we start A task for you – time 15 minutes Develop a web application which reads Employee information from MySQL DB and print on the screen. You need to use Spring and Hibenate(JPA). It should run in any web container.
- 3. List out the challenges you have faced while setting up the env. 1) Download and set up a server (e.g. Tomcat) 2) Download and install a DB 3) Download required Spring jars 4) Download Hibernate jar compatible with the Spring version 5) Download jar for MySQL driver 6) Setting up web.xml to use spring MVC 7) Anything I left ??? Before we start
- 4. Why Spring Boot • Provides a radically faster and widely accessible ‘getting started’ experience for all Spring development • No clumsy XML Configuration by developers • Provide opinionated ‘starter’ POMs to simplify your Maven configuration • Uses project management tool such as MAVEN or GRADLE • Helps fast development and production ready code • Embed Tomcat, Jetty or Undertow directly (no need to deploy WAR files) • In memory DB
- 6. System Requirement Spring Boot 1.4.2.RELEASE • Apache Maven • Java 7 +
- 7. http://start.spring.io – a good starting point
- 8. Folder Structure to be followed
- 11. First Java Program for spring boot
- 12. Running the application > mvn spring-boot:run
- 13. Devtools • Automatic Restart • LiveReload • Remote Debug Tunneling • Remote Update and Restart Details at: http://docs.spring.io/spring-boot/docs/current/reference/html/using-boot-devtools.html
- 14. Spring Tool Suite (sts) Download https://spring.io/tools/sts/all
- 15. Spring Web & MVC application.properties pom.xml
- 17. Runnable war 1) In Main java file: 1.1 extend : org.springframework.boot.web.support.SpringBootServletInitializer 1.2 override the method: @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { return application.sources(MyApplication.class); } 1.3 No need of main() method. 2) In pom.xml 1.1 Change the packing to war as: <packaging>war</packaging> 3) Use command: mvn clean package 4) In target, rename the war<context root> as you want, deploy in tomcat and access with <context root>/<request mapping>
- 18. MySQL & jdbc pom.xml spring.datasource.jndi-name=java:jboss/datasources/customers - For JNDI Datasource
- 19. MySQL & jdbc
- 20. JPA in Spring Boot
- 21. JPA in Spring Boot
- 22. JPA in Spring Boot
- 23. JPA in Spring Boot Things to learn: Only interface is enough which inherits to CrudRepository. The implementation will be provided by spring. To know the other inherited methods, please go through the CrudRepository API.
- 24. JPA in Spring Boot
- 25. Code https://github.com/santoshkar/SpringBoot.git The code can be downloaded from: