Start Project from Spring Initializer

• Main file

  • src/main/java/com.example/main

• resources

  • static: store static resources like js, css, images
  • templates: store all templates files
  • application.properties: config file, can modify some setting

Main Function

• This method aims to run the spring boot application

  @SpringBootApplication
  public class HelloWorldApplication {
    public static void main(String[] args) {
      SpringApplication.run(HelloWorldApplication.class, args);
    }
  }
  

• @SpringBootApplication

  • To mark Spring Boot must run this main method of this class to run Spring Boot application

    @Target(ElementType.TYPE)
    @Retention(RetentionPolicy.RUNTIME)
    @Documented
    @Inherited
    @SpringBootConfiguration
    @EnableAutoConfiguration
    @ComponentScan(excludeFilters = { @Filter(type = FilterType.CUSTOM, classes = TypeExcludeFilter.class),
            @Filter(type = FilterType.CUSTOM, classes = AutoConfigurationExcludeFilter.class) })
    public @interface SpringBootApplication {
        ...
    }
    

Controller Service

• @RestController
  public class HelloController {
    
      @RequestMapping("/hello")
      public String hello() {
          return "Hello Spring Boot!";
      }
  }
  

• @RestController

  • the return value of all methods will be wirtten on brower

    @Target({ElementType.TYPE})
    @Retention(RetentionPolicy.RUNTIME)
    @Documented
    @Controller
    @ResponseBody
    public @interface RestController {
        @AliasFor(
            annotation = Controller.class
        )
        String value() default "";
    }
    

Deploy

• add plugin in pom.xml

  <!-- this plugin make application to a jar package>
  <build>
          <plugins>
              <plugin>
                  <groupId>org.springframework.boot</groupId>
                  <artifactId>spring-boot-maven-plugin</artifactId>
              </plugin>
          </plugins>
      </build>
  

• Using mvn package commend to generate jar file

• find jar file it in target file, then use terminal to open it

  java -jar filename
  

To Explore More

• spring-boot-starter-web

  • In this project, we utilized web to develop web application.

  <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-web</artifactId>
  </dependency>
  

• There many starter we can use

  Name	Description
  spring-boot-starter	Core starter, including auto-configuration support, logging and YAML
  spring-boot-starter-activemq	Starter for JMS messaging using Apache ActiveMQ
  spring-boot-starter-amqp	Starter for using Spring AMQP and Rabbit MQ
  spring-boot-starter-aop	Starter for aspect-oriented programming with Spring AOP and AspectJ
  spring-boot-starter-artemis	Starter for JMS messaging using Apache Artemis
  spring-boot-starter-batch	Starter for using Spring Batch
  spring-boot-starter-cache	Starter for using Spring Framework’s caching support
  spring-boot-starter-data-cassandra	Starter for using Cassandra distributed database and Spring Data Cassandra
  spring-boot-starter-data-cassandra-reactive	Starter for using Cassandra distributed database and Spring Data Cassandra Reactive
  spring-boot-starter-data-couchbase	Starter for using Couchbase document-oriented database and Spring Data Couchbase
  spring-boot-starter-data-couchbase-reactive	Starter for using Couchbase document-oriented database and Spring Data Couchbase Reactive
  spring-boot-starter-data-elasticsearch	Starter for using Elasticsearch search and analytics engine and Spring Data Elasticsearch
  spring-boot-starter-data-jdbc	Starter for using Spring Data JDBC
  spring-boot-starter-data-jpa	Starter for using Spring Data JPA with Hibernate
  spring-boot-starter-data-ldap	Starter for using Spring Data LDAP
  spring-boot-starter-data-mongodb	Starter for using MongoDB document-oriented database and Spring Data MongoDB
  spring-boot-starter-data-mongodb-reactive	Starter for using MongoDB document-oriented database and Spring Data MongoDB Reactive
  spring-boot-starter-data-neo4j	Starter for using Neo4j graph database and Spring Data Neo4j
  spring-boot-starter-data-r2dbc	Starter for using Spring Data R2DBC
  spring-boot-starter-data-redis	Starter for using Redis key-value data store with Spring Data Redis and the Lettuce client
  spring-boot-starter-data-redis-reactive	Starter for using Redis key-value data store with Spring Data Redis reactive and the Lettuce client
  spring-boot-starter-data-rest	Starter for exposing Spring Data repositories over REST using Spring Data REST
  spring-boot-starter-data-solr	Starter for using the Apache Solr search platform with Spring Data Solr
  spring-boot-starter-freemarker	Starter for building MVC web applications using FreeMarker views
  spring-boot-starter-groovy-templates	Starter for building MVC web applications using Groovy Templates views
  spring-boot-starter-hateoas	Starter for building hypermedia-based RESTful web application with Spring MVC and Spring HATEOAS
  spring-boot-starter-integration	Starter for using Spring Integration
  spring-boot-starter-jdbc	Starter for using JDBC with the HikariCP connection pool
  spring-boot-starter-jersey	Starter for building RESTful web applications using JAX-RS and Jersey. An alternative to spring-boot-starter-web
  spring-boot-starter-jooq	Starter for using jOOQ to access SQL databases. An alternative to spring-boot-starter-data-jpa or spring-boot-starter-jdbc
  spring-boot-starter-json	Starter for reading and writing json
  spring-boot-starter-jta-atomikos	Starter for JTA transactions using Atomikos
  spring-boot-starter-jta-bitronix	Starter for JTA transactions using Bitronix. Deprecated since 2.3.0
  spring-boot-starter-mail	Starter for using Java Mail and Spring Framework’s email sending support
  spring-boot-starter-mustache	Starter for building web applications using Mustache views
  spring-boot-starter-oauth2-client	Starter for using Spring Security’s OAuth2/OpenID Connect client features
  spring-boot-starter-oauth2-resource-server	Starter for using Spring Security’s OAuth2 resource server features
  spring-boot-starter-quartz	Starter for using the Quartz scheduler
  spring-boot-starter-rsocket	Starter for building RSocket clients and servers
  spring-boot-starter-security	Starter for using Spring Security
  spring-boot-starter-test	Starter for testing Spring Boot applications with libraries including JUnit Jupiter, Hamcrest and Mockito
  spring-boot-starter-thymeleaf	Starter for building MVC web applications using Thymeleaf views
  spring-boot-starter-validation	Starter for using Java Bean Validation with Hibernate Validator
  spring-boot-starter-web	Starter for building web, including RESTful, applications using Spring MVC. Uses Tomcat as the default embedded container
  spring-boot-starter-web-services	Starter for using Spring Web Services
  spring-boot-starter-webflux	Starter for building WebFlux applications using Spring Framework’s Reactive Web support
  spring-boot-starter-websocket	Starter for building WebSocket applications using Spring Framework’s WebSocket support

end.