This document provides an overview and introduction to Spring Boot. It discusses:
- The goals of Spring Boot to provide a faster setup process and default configurations without needing XML.
- Key features like auto-configuration, embedded servlet containers, and the use of starters for common dependencies.
- Conventions in Spring Boot for project structure, main classes, configuration properties, and more.
- How to set up a Spring Boot project using Maven, including using the spring-boot-starter-parent and starter POMs.
- Support in Spring Boot for Spring MVC, data access with JPA/Spring Data, REST services, and testing.
A complete boot camp for beginners who want to learn Spring Boot.
In this course, you'll learn how we can create web services and cover all the topics of Spring Boot, Spring Framework, and many others.
If you've some experience in Java and want to be a Software Engineer or Java Developer using Spring, you're on right way.
Just read and practice, in the end of this course you'll have a great knowledge of Spring boot, a backend knowledge.
Course outline:
JPA, Hibernate, Spring, Spring Framework, H2 Database, PostgreSQL, MySQL.
#SpringBoot
#SpringFramwork
#MySQL
#PostgreSQL
#MySQL
#H2
#JPA/Hibernate
#Webservices
Java Spring MVC Framework with AngularJS by Google and HTML5Tuna Tore
Course Description
#springframework, #spring, #udemy, #discount, #programming, #springmvc, spring, #udemycourse, #education
NEW udemy course related to the latest Java Spring MVC Framework 4 for developing WEB applications with popular and proven technologies such as AngularJS by Google and HTML5. (Lectures are divided in three main sections so you don't have to learn AngularJS Framework until you start the last section. The last section will teach you AngularJS by Google and the integration with Java Spring MVC Framework 4)
https://www.udemy.com/java-spring-mvc-framework-with-angularjs-by-google-and-html5
Moreover, this course is designed and created with the mindset of teaching you the latest web technologies in a short period of time with low training cost and high-quality content including real production quality code examples.
Therefore after attending this course, you will be ready to design and develop any commercial Java Spring MVC applications by learning the main principals, best practices, and most important concepts.
Furthermore, this is a fast track course and covers the most important concepts in AngularJS Framework, HTML5 and the latest Java Spring MVC Framework 4x with code examples and sample applications. You will be able to download source codes/slides/diagrams by attending this course and you can use those samples/codes in your applications as well. Therefore, it will be more than enough for you to develop Java Spring MVC applications if you attend this course.
The benefits of attending this udemy course are listed like as below;
You will earn a higher salary hence you will be able to use the latest and productive technologies and this course will also improve the way of your thinking in terms of programming by teaching you dependency injection principle used in Spring MVC and AngularJS
You will be more confident about commercial WEB programming for the following years and general programming concepts as well.
We will only use FREE Open Source Software tools during the development of components in this course.
You will learn the latest Java Spring MVC Framework with hands-on examples
You will learn the usage of AngularJS by Google for developing structured rich client side applications
You will understand the usage of latest useful basic HTML5 tags with code examples
You will gain experience of using CSS(Style Sheets) in web applications
Learn how to develop, test, run and debug Java Spring MVC applications
Learn how to integrate AngularJS with Java Spring MVC framework.
https://www.udemy.com/java-spring-mvc-framework-with-angularjs-by-google-and-html5
#springframework, #spring, #udemy, #discount, #programming, #springmvc, spring, #udemycourse, #education
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.
A complete boot camp for beginners who want to learn Spring Boot.
In this course, you'll learn how we can create web services and cover all the topics of Spring Boot, Spring Framework, and many others.
If you've some experience in Java and want to be a Software Engineer or Java Developer using Spring, you're on right way.
Just read and practice, in the end of this course you'll have a great knowledge of Spring boot, a backend knowledge.
Course outline:
JPA, Hibernate, Spring, Spring Framework, H2 Database, PostgreSQL, MySQL.
#SpringBoot
#SpringFramwork
#MySQL
#PostgreSQL
#MySQL
#H2
#JPA/Hibernate
#Webservices
Java Spring MVC Framework with AngularJS by Google and HTML5Tuna Tore
Course Description
#springframework, #spring, #udemy, #discount, #programming, #springmvc, spring, #udemycourse, #education
NEW udemy course related to the latest Java Spring MVC Framework 4 for developing WEB applications with popular and proven technologies such as AngularJS by Google and HTML5. (Lectures are divided in three main sections so you don't have to learn AngularJS Framework until you start the last section. The last section will teach you AngularJS by Google and the integration with Java Spring MVC Framework 4)
https://www.udemy.com/java-spring-mvc-framework-with-angularjs-by-google-and-html5
Moreover, this course is designed and created with the mindset of teaching you the latest web technologies in a short period of time with low training cost and high-quality content including real production quality code examples.
Therefore after attending this course, you will be ready to design and develop any commercial Java Spring MVC applications by learning the main principals, best practices, and most important concepts.
Furthermore, this is a fast track course and covers the most important concepts in AngularJS Framework, HTML5 and the latest Java Spring MVC Framework 4x with code examples and sample applications. You will be able to download source codes/slides/diagrams by attending this course and you can use those samples/codes in your applications as well. Therefore, it will be more than enough for you to develop Java Spring MVC applications if you attend this course.
The benefits of attending this udemy course are listed like as below;
You will earn a higher salary hence you will be able to use the latest and productive technologies and this course will also improve the way of your thinking in terms of programming by teaching you dependency injection principle used in Spring MVC and AngularJS
You will be more confident about commercial WEB programming for the following years and general programming concepts as well.
We will only use FREE Open Source Software tools during the development of components in this course.
You will learn the latest Java Spring MVC Framework with hands-on examples
You will learn the usage of AngularJS by Google for developing structured rich client side applications
You will understand the usage of latest useful basic HTML5 tags with code examples
You will gain experience of using CSS(Style Sheets) in web applications
Learn how to develop, test, run and debug Java Spring MVC applications
Learn how to integrate AngularJS with Java Spring MVC framework.
https://www.udemy.com/java-spring-mvc-framework-with-angularjs-by-google-and-html5
#springframework, #spring, #udemy, #discount, #programming, #springmvc, spring, #udemycourse, #education
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.
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.
Elastic and Cloud-ready Applications with Payara MicroOndrej Mihályi
This session will explain how to build modern and scalable applications, while efficiently adding business value. With the right tools, technical decisions can be deferred and problems can be solved according to business needs instead. Payara Micro – an open source MicroProfile-compatible runtime – provides these tools in an easy-to-use package, allowing developers to focus on getting the job done. In addition, it can be connected using a standard API to Apache Kafka or Amazon SQS for high performance messaging.
In this talk, you’ll learn how to create an architecture around all these tools to get as much flexibility as possible and be ready to deploy your applications into cloud. During a live demonstration, you’ll see how a Java EE application can benefit from dynamic clustering, MicroProfile API, distributed configuration and scalable cache built into the Payara Micro runtime.
Elastic and Cloud-ready Applications with Payara MicroPayara
First presneted at the W-JAX Conference in Munich, Germany on the 8th of November 2017.
This session will explain how to build modern and scalable applications, while efficiently adding business value. With the right tools, technical decisions can be deferred and problems can be solved according to business needs instead. Payara Micro – an open source MicroProfile-compatible runtime – provides these tools in an easy-to-use package, allowing developers to focus on getting the job done. In addition, it can be connected using a standard API to Apache Kafka or Amazon SQS for high performance messaging.
In this talk, you’ll learn how to create an architecture around all these tools to get as much flexibility as possible and be ready to deploy your applications into cloud. During a live demonstration, you’ll see how a Java EE application can benefit from dynamic clustering, MicroProfile API, distributed configuration and scalable cache built into the Payara Micro runtime.
Modular Test-driven SPAs with Spring and AngularJSGunnar Hillert
Single-page Applications (SPA) are all the rage these days and with them there is an avalanche of new tools, libraries and frameworks we need to know. But what does this mean for us as Spring developers? In this session we will give you an overview of the current landscape and illustrate the choices the Spring XD team has made for its user interface. What do I use to write SPA applications? How do I integrate them into existing Spring-based backends? How do I build them? Can I integrate them into my existing Gradle or Maven build processes in order to achieve complete build automation? How do I integrate realtime messaging using Spring's SockJS/WebSocket support? In this talk we will answer these and many more questions. We will cover frameworks such as AngularJS, Bootstrap, RequireJS; tools like Bower, Grunt, Gulp; and also talk about testing using Karma and Protractor.
»Spring 3« ist da. Vieles ist geblieben, manches verschwunden, manches neu. Spring 3 verspricht eine verbesserte und dynamischere Konfiguration, einen leistungsfähigen und mächtigen REST-Support und viele kleine Verbesserungen. Parallel zu dem Spring 3-Release wurden auch andere Tools und Projekte aktualisiert, auf die wir ebenfalls einen Blick werfen wollen:
* Wichtige Änderungen
* Java Configuration
* Spring Expression Language
* Spring MVC und Rest
* Embedded Database
* SpringSource Toolsuite
* Spring Roo
* Grails
Presented at Bucharest Java User Group, http://www.bjug.ro/editii/5.html . Project source code available at: https://github.com/bucharest-jug/dropwizard-todo
Slides accompanying a presentation on Dropwizard I gave at the DevIgnition conference ( www.devignition.com ) on April 29, 2016. The sample code is on GitHub at https://github.com/sleberknight/dropwizard-devignition-2016
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.
Elastic and Cloud-ready Applications with Payara MicroOndrej Mihályi
This session will explain how to build modern and scalable applications, while efficiently adding business value. With the right tools, technical decisions can be deferred and problems can be solved according to business needs instead. Payara Micro – an open source MicroProfile-compatible runtime – provides these tools in an easy-to-use package, allowing developers to focus on getting the job done. In addition, it can be connected using a standard API to Apache Kafka or Amazon SQS for high performance messaging.
In this talk, you’ll learn how to create an architecture around all these tools to get as much flexibility as possible and be ready to deploy your applications into cloud. During a live demonstration, you’ll see how a Java EE application can benefit from dynamic clustering, MicroProfile API, distributed configuration and scalable cache built into the Payara Micro runtime.
Elastic and Cloud-ready Applications with Payara MicroPayara
First presneted at the W-JAX Conference in Munich, Germany on the 8th of November 2017.
This session will explain how to build modern and scalable applications, while efficiently adding business value. With the right tools, technical decisions can be deferred and problems can be solved according to business needs instead. Payara Micro – an open source MicroProfile-compatible runtime – provides these tools in an easy-to-use package, allowing developers to focus on getting the job done. In addition, it can be connected using a standard API to Apache Kafka or Amazon SQS for high performance messaging.
In this talk, you’ll learn how to create an architecture around all these tools to get as much flexibility as possible and be ready to deploy your applications into cloud. During a live demonstration, you’ll see how a Java EE application can benefit from dynamic clustering, MicroProfile API, distributed configuration and scalable cache built into the Payara Micro runtime.
Modular Test-driven SPAs with Spring and AngularJSGunnar Hillert
Single-page Applications (SPA) are all the rage these days and with them there is an avalanche of new tools, libraries and frameworks we need to know. But what does this mean for us as Spring developers? In this session we will give you an overview of the current landscape and illustrate the choices the Spring XD team has made for its user interface. What do I use to write SPA applications? How do I integrate them into existing Spring-based backends? How do I build them? Can I integrate them into my existing Gradle or Maven build processes in order to achieve complete build automation? How do I integrate realtime messaging using Spring's SockJS/WebSocket support? In this talk we will answer these and many more questions. We will cover frameworks such as AngularJS, Bootstrap, RequireJS; tools like Bower, Grunt, Gulp; and also talk about testing using Karma and Protractor.
»Spring 3« ist da. Vieles ist geblieben, manches verschwunden, manches neu. Spring 3 verspricht eine verbesserte und dynamischere Konfiguration, einen leistungsfähigen und mächtigen REST-Support und viele kleine Verbesserungen. Parallel zu dem Spring 3-Release wurden auch andere Tools und Projekte aktualisiert, auf die wir ebenfalls einen Blick werfen wollen:
* Wichtige Änderungen
* Java Configuration
* Spring Expression Language
* Spring MVC und Rest
* Embedded Database
* SpringSource Toolsuite
* Spring Roo
* Grails
Presented at Bucharest Java User Group, http://www.bjug.ro/editii/5.html . Project source code available at: https://github.com/bucharest-jug/dropwizard-todo
Slides accompanying a presentation on Dropwizard I gave at the DevIgnition conference ( www.devignition.com ) on April 29, 2016. The sample code is on GitHub at https://github.com/sleberknight/dropwizard-devignition-2016
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
6. Spring.. Boot?
Spring made Simple
‘Spring Boot makes it easy to create stand-alone,
production-grade Spring based Applications that you can
“just run”’
New recommended way of running Spring programs
Goals
● Faster and more accessible initial setup
● Default Configurations and the ability to Customize
● No code generation and No XML configs
7. System Requirements
● Java 6+ (8 recommended)
● Spring 4.1.5+
That's it! Simply include the appropriate spring-boot-*.jar
files on your classpath.
---
● But, Recommended to use Build scripts:
○ Maven (3.2+), Gradle (1.12+)
● Also, Out-of-box supported Servlet containers:
○ Tomcat 7+, Jetty 8+, Undertow 1.1
9. Using Maven : Parent POM & Dependency
Inherit from the spring-boot-starter-parent project to
obtain sensible defaults:
Java 6 compiler, UTF-8 code, Sensible resource filtering (ex:
for application.properties), Sensible plugin configs
spring-boot-starter-parent extends from spring-boot-
dependencies which holds a predefined set of dependencies.
● Could easily include dependencies from the parent
● Could override the versions by overriding MVN variables
<properties>
<java.version>1.8</java.version>
</properties>
10. Using Maven : Starter POMs
Starter POMs are a set of convenient dependency descriptors
that you can include in your application
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency> ^-- No need for version as it comes
</dependencies> from Parent POM
Has many more including:
spring-boot-starter-amqp, spring-boot-starter-batch,
spring-boot-starter-data-jpa, spring-boot-starter-data-rest,
spring-boot-starter-mail, spring-boot-starter-mobile,
spring-boot-starter-test, spring-boot-starter-logging,
spring-boot-starter-ws spring-security-oauth2
13. Main Class
@Configuration
@EnableAutoConfiguration
@ComponentScan
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
Just starts up deamon. To build CLI apps, use Spring Boot
CLI
SpringApplication can be customized by calling different
setters
Ex: Command line params, add listeners, shutdown hooks
@SpringBootApplication
}
14. Code Structure
@ComponentScan automatically picks up all Spring components
com
+- example
+- myproject
+- Application.java <- Main application class is in a
| root package above other classes
+- domain for correct @ComponentScan
| +- Customer.java
| +- CustomerRepository.java
|
+- service
| +- CustomerService.java
|
+- web
+- CustomerController.java
15. Defining Beans in @Configuration
Spring Boot favors Java-based @Configuration over XML
Config, which is more traditional.
@Configuration
public class AdsdaqCoreDatasourceConfiguration {
@Bean(name = “dataSourceMain”)
@ConfigurationProperties(prefix = “datasource.main”)
@Primary
public DataSource dataSourceAdServer() {
return DataSourceBuilder.create().build();
}
}
___
datasource.main.url=jdbc:mysql://localhost:3306/reviewdb
datasource.main.username=root
datasource.main.password=admin
16. Enabling Auto Configuration
@EnableAutoConfiguration attempts to automatically configure
the application based on the dependencies
At any point you can start to define your own @Configuration
to replace specific parts of the auto-configuration.
Ex: if you add your own DataSource bean, the default
embedded database support will back away.
There are factories defined in
[MVN_repo]orgspringframeworkbootspring-boot-autoconfigure[VER]
[JAR]META-INFspring.factories
These factories only loaded by if satisfied various
conditions (ex: WebMvcAutoConfiguration)
17. Spring Beans
Spring provides the following stereotypes for a Spring Bean:
| Annotation | Meaning |
+-------------+-----------------------------------------------------+
| @Component | generic stereotype for any Spring-managed component |
| @Repository | stereotype for persistence layer |
| @Service | stereotype for service layer |
| @Controller | stereotype for presentation layer (spring-mvc) |
Any object with a stereotype as above is identified as a
Spring Bean.
Spring will create them upon container startup and map them
to any @Autowired annotation on an attribute/constructor
18. Spring Config files
Usually Spring Configuration is stored in file
config/application.properties (or YAML)
Can hard-code values into setters in beans
app.name=MyApp
app.description=${app.name} is a Spring Boot application
This can be overridden by
● runtime variables,
● environment variables,
● profile specific files (application-local.properties),
● based on the location of application.properties,
etc.
19. Setting Spring Config values to Beans
app.name=MyApp
listener.enable: true
connection.username:
admin
connection.remote-
address: 192.168.1.1
@Value("${app.name}")
private String name;
@Component
@ConditionalOnProperty(prefix = "listener",
name = "enable", matchIfMissing = false)
public class SomeListener { .. }
@Component
@ConfigurationProperties(prefix="connection")
public class ConnectionSettings {
private String username;
@NotNull
private InetAddress remoteAddress;
// ... getters and setters
}
20. Spring Profiles
Support profiles where the application would act differently
based on the active profile.
Ex: if ‘dev’ profile is passed via env. var.
--spring.profiles.active=dev
If exists,
● Beans with @Profile("dev") will be activated
● File application-dev.properties will be activated
Good for: Dev vs Prod settings, Local Dev vs Default
settings
21. Logging
Spring uses Commons Logging as default.
By default logs to console unless logging.file or logging.
path is set in application.properties.
Set log levels as follows:
logging.level.root=WARN
logging.level.org.springframework.web=DEBUG
If custom logging framework specific configs are to be used
property logging.config
Log format also can be configured.
22. Building JAR and Running
Spring has plugins for Eclipse, IDEA etc.
Spring Boot has a Maven plugin that can package the project
as an executable jar. Add the plugin to your <plugins>
section if you want to use it:
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
Run java -jar target/myproject-0.0.1-SNAPSHOT.jar
Or mvn spring-boot:run
24. DB Access with Spring
If you use embeded DB, it only needs MVN dependency.
If you use a production database,
Spring will connection pooling using tomcat-jdbc by
default (via Starters)
spring.datasource.url=jdbc:mysql://localhost/test
spring.datasource.username=dbuser
spring.datasource.password=dbpass
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
There are many more attributes
25. Data Access Using JPA and Spring Data - Entity
Using spring-boot-starter-data-jpa.
@Entity classes are ‘scanned’.
import javax.persistence.*;
@Entity
public class City implements Serializable {
@Id
@GeneratedValue
private Long id;
@Column(nullable = false)
private String name;
}
More info about JPA at Hibernate Documentation
26. Data Access Using JPA and Spring Data - Repository
SQL are autogenerated.
public interface CityRepository extends PagingAndSortingRepository<City, Long>
{
Page<City> findAll(Pageable pageable);
City findByNameAndCountryAllIgnoringCase(String name, String country);
@Query("select c from City c")
Stream<City> findAllByCustomQueryAndStream();
}
● Repository’s subclass CrudRepository generates default
CRUD methods in runtime.
● CrudRepository’s subclass PagingAndSortingRepository
generates paging and sorting methods
27. Spring Data REST
Is able to easily open a REST interface to the DB using
Spring Data REST by including a spring-boot-starter-data-
rest dependency
Auto serialization
@RepositoryRestResource(collectionResourceRel = "cities", path =
"cities")
interface CityRepository extends Repository<City, Long> {
...
}
29. Spring MVC
Spring Boot comes with some auto configuration.
@Controller
@RequestMapping(value="/users")
public class MyRestController {
@RequestMapping(value="/{user}/cust", method=RequestMethod.GET)
ModelAndView getUserCustomers(@PathVariable Long user) {
// ...
}
}
@RestController creates a REST service.
● Expects any static content to be in a directory called
/static (or /public or /resources or /META-INF/resources)
or at spring.resources.staticLocations
● /error mapping by default that handles all errors as a
global error page.
30. @RequestMapping
@RequestMapping when added to a class would be prefixed to
the @RequestMapping of the method
@RequestMapping method can be called with different
parameters and different return types and it will work
differently
Can also write @RequestMapping to be caught based on,
● RequestMethod (GET, POST..)
● HTTP parameters (ex: params="myParam=myValue")
● HTTP Headers (ex: headers="myHeader=myValue")
31. Spring MVC : Other features
● Templating: Auto-configuration support for: FreeMarker,
Groovy, Thymeleaf, Velocity, Mustache
○ Templates will be picked up automatically from
src/main/resources/templates
● Other REST Implementations: Support for JAX-RS and Jersey
● Embedded servlet container support: Comes with Starter
Pom. Embeds Tomcat by default. Can go for Jetty, and
Undertow servers as well
○ Can set attributes server.port (default is 8080), server.
address, server.session.timeout values
○ Can deploy as a WAR as well
33. Why need Spring for Tests?
Sometimes we need Spring context
Ex: DB related tests, Web related tests
Can set custom properties for tests using
@TestPropertySource
Has Transaction support, esp for Integration testing for
Auto-rollback
For TestNG, extend AbstractTransactionalTestNGSpringContextTests
35. Parting notes
● Can convert your classic Spring app to Spring Boot
● Many guides found in: http://spring.io/guides
● Well documented
___
Pros
● Easy to use. Will soon be the Future
Cons
● Debugging config issues can get tough. Not much help yet
from ‘Googling’