Dinesh on Java

• Introduction of Spring Boot 
• Key Components of Spring Boot 
• Spring Boot CLI

• Through a web-based interface
• Via Spring Tool Suite
• Via IntelliJ IDEA
• Using the Spring Boot CLI

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 <modelVersion>4.0.0</modelVersion>

 <groupId>com.dineshonjava</groupId>
 <artifactId>myapp</artifactId>
 <version>0.0.1-SNAPSHOT</version>
 <packaging>jar</packaging>

 <name>myapp</name>
 <description>Demo project for Spring Boot</description>

 <parent>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-parent</artifactId>
  <version>1.3.5.RELEASE</version>
  <relativePath/> <!-- lookup parent from repository -->
 </parent>

 <properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  <java.version>1.8</java.version>
 </properties>

 <dependencies>
  <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-data-jpa</artifactId>
  </dependency>
  <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-web</artifactId>
  </dependency>
  
  <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-test</artifactId>
   <scope>test</scope>
  </dependency>
 </dependencies>
 
 <build>
  <plugins>
   <plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
   </plugin>
  </plugins>
 </build>
 

</project>

package com.dineshonjava;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class MyappApplication {

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

package com.dineshonjava;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.SpringApplicationConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = MyappApplication.class)
@WebAppConfiguration
public class MyappApplicationTests {

 @Test
 public void contextLoads() {
 }

}

buildscript {
 ext {
  springBootVersion = '1.3.5.RELEASE'
 }
 repositories {
  mavenCentral()
 }
 dependencies {
  classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}") 
 }
}

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'spring-boot' 

jar {
 baseName = 'mygradleapp'
 version = '0.0.1-SNAPSHOT'
}
sourceCompatibility = 1.8
targetCompatibility = 1.8

repositories {
 mavenCentral()
}


dependencies {
 compile('org.springframework.boot:spring-boot-starter-data-jpa')
 compile('org.springframework.boot:spring-boot-starter-web')
 testCompile('org.springframework.boot:spring-boot-starter-test') 
}


eclipse {
 classpath {
   containers.remove('org.eclipse.jdt.launching.JRE_CONTAINER')
   containers 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8'
 }
}

• build.gradle—A Gradle build specification. Had you chosen a Maven project, this would be replaced with pom.xml.
• Application.java—A class with a main() method to bootstrap the application.
• ApplicationTests.java— an empty JUnit test class instrumented to load a Spring application context using Spring Boot auto-configuration.
• application.properties—an empty properties file for you to add configuration properties to as you see fit.

Summary