This document provides an introduction to Spring Boot, including its objectives, key principles, and features. It discusses how Spring Boot enables building standalone, production-grade Spring applications with minimal configuration. It demonstrates creating a "Hello World" REST app with one Java class. It also covers auto-configuration, application configuration, testing, supported technologies, case studies, and other features like production readiness and remote shell access.
Welcome to presentation on Spring boot which is really great and relatively a new project from Spring.io. Its aim is to simplify creating new spring framework based projects and unify their configurations by applying some conventions. This convention over configuration is already successfully applied in so called modern web based frameworks like Grails, Django, Play framework, Rails etc.
Presentation explain about
Spring Boot vs Spring vs Spring MVC,
Advantages,
Where to start and how does Spring boot work ?,
Dependency Management,
Logging,
Exception Handling,
Database Handling.
in Spring boot.
Overview of Spring Boot for the rapid development of Java Applications and Microservices. More information can be found at : https://www.spiraltrain.nl/course-spring-boot-development/?lang=en
This ppt provide basic understanding regarding Spring Boot. And how to configure Spring Boot application with Hibernate and mysql by using eclipse IDE. Also provides understanding about how to configure Spring Tool Suit (STS) in Eclipse.
Welcome to presentation on Spring boot which is really great and relatively a new project from Spring.io. Its aim is to simplify creating new spring framework based projects and unify their configurations by applying some conventions. This convention over configuration is already successfully applied in so called modern web based frameworks like Grails, Django, Play framework, Rails etc.
Presentation explain about
Spring Boot vs Spring vs Spring MVC,
Advantages,
Where to start and how does Spring boot work ?,
Dependency Management,
Logging,
Exception Handling,
Database Handling.
in Spring boot.
Overview of Spring Boot for the rapid development of Java Applications and Microservices. More information can be found at : https://www.spiraltrain.nl/course-spring-boot-development/?lang=en
This ppt provide basic understanding regarding Spring Boot. And how to configure Spring Boot application with Hibernate and mysql by using eclipse IDE. Also provides understanding about how to configure Spring Tool Suit (STS) in Eclipse.
This talk introduces Spring's REST stack - Spring MVC, Spring HATEOAS, Spring Data REST, Spring Security OAuth and Spring Social - while refining an API to move higher up the Richardson maturity model
Introduction to the Spring Framework:
Generar description
IoC container
Dependency Injection
Beans scope and lifecycle
Autowiring
XML and annotation based configuration
Additional features
Spring boot is a great and relatively a new project from Spring.io. The presentation discusses about basics of spring boot to advance topics. Sample demo apps are available here : https://github.com/bhagwat/spring-boot-samples
Spring Data is a high level SpringSource project whose purpose is to unify and ease the access to different kinds of persistence stores, both relational database systems and NoSQL data stores.
This is a basic tutorial on Spring core.
Best viewed when animations and transitions are supported, e.g., view in MS Powerpoint. So, please try to view it with animation else the main purpose of this presentation will be defeated.
Spring Framework Petclinic sample applicationAntoine Rey
Spring Petclinic is a sample application that has been designed to show how the Spring Framework can be used to build simple but powerful database-oriented applications.
The fork named Spring Framework Petclinic maintains a version both with a plain old Spring Framework configuration and a 3-layer architecture (i.e. presentation --> service --> repository).
This talk introduces Spring's REST stack - Spring MVC, Spring HATEOAS, Spring Data REST, Spring Security OAuth and Spring Social - while refining an API to move higher up the Richardson maturity model
Introduction to the Spring Framework:
Generar description
IoC container
Dependency Injection
Beans scope and lifecycle
Autowiring
XML and annotation based configuration
Additional features
Spring boot is a great and relatively a new project from Spring.io. The presentation discusses about basics of spring boot to advance topics. Sample demo apps are available here : https://github.com/bhagwat/spring-boot-samples
Spring Data is a high level SpringSource project whose purpose is to unify and ease the access to different kinds of persistence stores, both relational database systems and NoSQL data stores.
This is a basic tutorial on Spring core.
Best viewed when animations and transitions are supported, e.g., view in MS Powerpoint. So, please try to view it with animation else the main purpose of this presentation will be defeated.
Spring Framework Petclinic sample applicationAntoine Rey
Spring Petclinic is a sample application that has been designed to show how the Spring Framework can be used to build simple but powerful database-oriented applications.
The fork named Spring Framework Petclinic maintains a version both with a plain old Spring Framework configuration and a 3-layer architecture (i.e. presentation --> service --> repository).
This session will give attendees an overview of the new testing features in Spring 3.1 as well the new Spring MVC test support. Sam Brannen will demonstrate how to use the Spring TestContext Framework to write integration tests for Java-based Spring configuration using @Configuration classes. He'll then compare and contrast this approach with XML-based configuration and follow up with a discussion of the new testing support for bean definition profiles. Next, Rossen Stoyanchev will show attendees how testing server-side code with annotated controllers and client-side code with the RestTemplate just got a whole lot easier with the new Spring MVC test support. Come to this session to see these new Spring testing features in action and learn how you can get involved in the Spring MVC Test Support project.
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• JDBC Continued
• Introduction to Java Enterprise Edition (Java EE)
For more information about this course visit on this link: https://www.mindsmapped.com/courses/software-development/learn-java-fundamentals-hands-on-training-on-core-java-concepts/
this ppt tells you about what is spring in java. how to use spring? and what are the main methods of spring class? For more info and free java projects visit : http://s4al.com/category/study-java/
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Spring Boot testing features
Example of microservices with Spring Cloud
Component & Integration testing with Hoverfly
Contract testing with Pact or Spring Cloud Contract
Load testing with Gatling
Integration & end-to-end testing with Arquillian Cube
Summary
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Spring Transaction, Spring MVC,
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Check out the webinar slides to learn more about how XfilesPro transforms Salesforce document management by leveraging its world-class applications. For more details, please connect with sales@xfilespro.com
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Code reviews are vital for ensuring good code quality. They serve as one of our last lines of defense against bugs and subpar code reaching production.
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- Elevating Reviews with Automated Tools
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The U.S. Geological Survey (USGS) has made substantial investments in meeting evolving scientific, technical, and policy driven demands on storing, managing, and delivering data. As these demands continue to grow in complexity and scale, the USGS must continue to explore innovative solutions to improve its management, curation, sharing, delivering, and preservation approaches for large-scale research data. Supporting these needs, the USGS has partnered with the University of Chicago-Globus to research and develop advanced repository components and workflows leveraging its current investment in Globus. The primary outcome of this partnership includes the development of a prototype enterprise repository, driven by USGS Data Release requirements, through exploration and implementation of the entire suite of the Globus platform offerings, including Globus Flow, Globus Auth, Globus Transfer, and Globus Search. This presentation will provide insights into this research partnership, introduce the unique requirements and challenges being addressed and provide relevant project progress.
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Venez le découvrir lors de cette session ignite
2. Objectives
Make you want to use Spring Boot
Demystify how self-configuration works
Show Spring Boot in action
Share a return of migration experience to Spring Boot
3. Summary
The principles of Spring Boot
The traditional Hello World
Application configuration
Simplified tests
Demo: development of a Hello World application
Case studies: migration of the Spring Petclinic application
Overview of other features
4. Strong ideas
Accelerate the development of Spring applications
Convention over Configuration
No code generated
Easy deployment
Ready for production
5. Hello World
REST Application = 1 Java Class +1 pom.xml/build.gradle
@SpringBootApplication
@RestController
public class HelloWorld {
public static void main(String[] args) {
SpringApplication.run(HelloWorld.class, args);
}
@RequestMapping("/")
public String hello() {
return "Hello World!";
}
}
6. Technologies supported
Core : Spring Security, JTA, Spring Cache, Spring Session
Web : Spring MVC, Websocket, Jersey, Mobile, HATEOS
Template engines : Freemaker, Thymeleaf, Groovy, Mustache
Database
RDBMS : Spring Data JPA, JDBC, JOOQ
NoSQL : Redis, MongoDB, Elasticsearch, Cassandra
Spring Cloud Suite: Eureka, Hystrix, Turbine, AWS, OAuth2
I/O : Spring Batch and Integration, JavaMail, Camel, JMS, AMQP
Social : Facebook, Linkedin, Twitter
7. Auto-configuration (1/2)
The @SpringBootApplication annotation triggers the automatic
configuration of the Spring infrastructure
@SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
When the application starts, Spring Boot :
Scans all classes of @Configuration
Application-specific configuration classes
Spring Boot Classes Suffixed by AutoConfiguration
Use the JARs present in the classpath to make decisions
8. Auto-configuration (2/2)
Based on conditional activations
@Conditional, @ConditionalOnProperty, @ConditionalOnClass,
@ConditionalOnMissingClass ,@ConditionalOnMissingBean ,
@ConditionalOnWebApplication, @ConditionalOnNotWebApplication,
@ConditionalOnExpression
Possibility to create your own self-configuring library
9. Spring JDBC auto-configuration
@Configuration
@ConditionalOnClass({ DataSource.class, JdbcTemplate.class })
@ConditionalOnSingleCandidate(DataSource.class)
@AutoConfigureAfter(DataSourceAutoConfiguration.class)
public class JdbcTemplateAutoConfiguration {
private final DataSource dataSource;
public JdbcTemplateAutoConfiguration(DataSource dataSource) {
this.dataSource = dataSource;
}
@Bean
@Primary
@ConditionalOnMissingBean(JdbcOperations.class)
public JdbcTemplate jdbcTemplate() {
return new JdbcTemplate(this.dataSource);
}
@Bean
@Primary
@ConditionalOnMissingBean(NamedParameterJdbcOperations.class)
public NamedParameterJdbcTemplate namedParameterJdbcTemplate() {
return new NamedParameterJdbcTemplate(this.dataSource);
}
}
10. Auto-configuration of the DataSource
Complexity of DataSourceAutoConfiguration
DataSource recovery by JNDI
Choice of connection pool : Tomcat, HikariCP
, Commons DBCP 1 or 2
Setting up the connection to the database
Configurationapplication.properties
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
Embedded database by JAR analysis in the classpath
XA Support
Pool exposure via JMX
11. Application Configuration
Centralized in
application.properties
or application.yml
Completion in the IDE
Expandable and TypeSafe configuration
@ConfigurationProperties
Possibility of configuration specific to a deployment environment
java -jar myapp,jar --spring.profiles.active=production
Change application-production.properties
12. Self-configured tests
The spring-boot-starter-test starter pulls test frameworks :
JUnit, Spring Test, AssertJ, Mockito, JsonPath, JSONassert et Hamcrest.
Functionality of «slicing test»
Allows to segment tests : presentation layer, REST controllers, DAO …
Spring Boot is responsible for creating a dedicated application context
Annotations game : @WebMvcTest, @JsonTest, @DataJpaTest, @RestClientTest
Possibility to create your own slice (ex: @DataJdbcTest)
Automatic creation of mocks with @MockBean
For integration testing, @SpringBootTest allows you to start a servlet
container
13. @RunWith(SpringRunner.class)
@WebMvcTest(OwnerController.class)
public class OwnerControllerTests {
@Autowired
private MockMvc mockMvc;
@MockBean
private ClinicService clinicService;
@Test
public void testDisplayOwner() throws Exception {
Owner george = new Owner(1, "George", "Franklin");
given(this.clinicService.findOwnerById(1)).willReturn(george);
mockMvc.perform(get("/owners/{ownerId}", 1))
.andExpect(status().isOk())
.andExpect(model().attribute("owner", hasProperty("lastName", is("Franklin"))))
.andExpect(model().attribute("owner", hasProperty("firstName", is("George"))))
.andExpect(view().name("owners/ownerDetails"));
}
}
Unit test example
Initialization of a web application
context scanning Spring MVC beans
and configuration of MockMvc
Mockito simulacrum recorded in the
Spring application context and made
available by auto-wiring
Alias for SpringJUnit4ClassRunner
14. Live coding
Using Spring Initializr from IntelliJ : WEB, JPA, thymeleaf
Using the H2 database
Creation of a service REST HelloWorld
Logger configuration
Tomcat to Jetty migration
Actuator demo
Banner customization
Running a self-executing JAR
Port change by configuration, parameter and Spring profile
16. And many other features
Customizing the Startup Banner
Ready for Production
Initializing databases
Exécution de jobs Spring Batch
Shell remote (CRaSH)
Spring Boot CLI
Use Jetty or Undertow instead of Tomcat
Live Reload & Hot swapping
Installation as a Linux or Windows service
17. Conclusion
Allows you to quickly set up an application Java based on Spring
Drastically reduces the Spring configuration
Can replace a Business base
Say goodbye to the good old big application servers
Make JAR not WAR
18. Resources
Spring Boot Reference Manual(Pivotal)
Bootiful Microservice (Josh Long)
Custom test slice with Spring Boot 1.4 (S. Nicoll)
Spring Guides (Pivotal)