BAEL-2728 | vatsalgosar@gmail.com

- Sprint Boot application implementation using @SpringBootConfiguration annotation

spring-boot-configuration/.gitignore

@@ -0,0 +1,31 @@
+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**
+!**/src/test/**
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+
+### VS Code ###
+.vscode/

spring-boot-configuration/README.md

@@ -0,0 +1,10 @@
+Article:
+SprintBootConfiguration annotation
+
+commands:
+mvn clean install
+mvn spring-boot:run
+
+Swagger endpoints:
+http://localhost:8080/v2/api-docs
+http://localhost:8080/swagger-ui.html

spring-boot-configuration/pom.xml

@@ -0,0 +1,72 @@
+<?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>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.1.6.RELEASE</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.baeldung</groupId>
+	<artifactId>spring-boot-configuration</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>spring-boot-configuration</name>
+	<description>Demo project for Spring Boot Configuration </description>
+
+	<properties>
+		<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>
+
+		<!-- h2 database dependency-->
+		<dependency>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+
+		<!-- hibernate dependency-->
+		<dependency>
+			<groupId>org.hibernate</groupId>
+			<artifactId>hibernate-entitymanager</artifactId>
+		</dependency>
+
+		<!-- springfox swagger dependency-->
+		<dependency>
+			<groupId>io.springfox</groupId>
+			<artifactId>springfox-swagger2</artifactId>
+			<version>2.9.2</version>
+		</dependency>
+		<dependency>
+			<groupId>io.springfox</groupId>
+			<artifactId>springfox-swagger-ui</artifactId>
+			<version>2.9.2</version>
+		</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>

spring-boot-configuration/src/main/java/com/baeldung/Application.java

@@ -0,0 +1,20 @@
+package com.baeldung;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.SpringBootConfiguration;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Import;
+
+@EnableAutoConfiguration
+@ComponentScan(basePackages = {"com.baeldung.*"})
+@SpringBootConfiguration
+@Import({SwaggerConfig.class})
+public class Application {
+
+	public static void main(String[] args) {
+
+		SpringApplication.run(Application.class, args);
+	}
+}
+

spring-boot-configuration/src/main/java/com/baeldung/SwaggerConfig.java

@@ -0,0 +1,22 @@
+package com.baeldung;
+
+import org.springframework.boot.SpringBootConfiguration;
+import org.springframework.context.annotation.Bean;
+import springfox.documentation.builders.PathSelectors;
+import springfox.documentation.builders.RequestHandlerSelectors;
+import springfox.documentation.spi.DocumentationType;
+import springfox.documentation.spring.web.plugins.Docket;
+import springfox.documentation.swagger2.annotations.EnableSwagger2;
+
+@SpringBootConfiguration
+@EnableSwagger2
+public class SwaggerConfig {
+    @Bean
+    public Docket api() {
+        return new Docket(DocumentationType.SWAGGER_2)
+                .select()
+                .apis(RequestHandlerSelectors.any())
+                .paths(PathSelectors.any())
+                .build();
+    }
+}

spring-boot-configuration/src/main/java/com/baeldung/controller/PersonController.java

@@ -0,0 +1,39 @@
+package com.baeldung.controller;
+
+import com.baeldung.domain.Person;
+import com.baeldung.exception.PersonNotFoundException;
+import com.baeldung.service.PersonService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/persons")
+public class PersonController {
+
+    @Autowired
+    PersonService personService;
+
+    @GetMapping
+    public List<Person> getPersons() {
+        return personService.getPersons();
+    }
+
+    @PostMapping
+    public void addPerson(@RequestBody Person person) {
+        personService.add(person);
+    }
+
+    @GetMapping("/{id}")
+    public Person getPersonById(@PathVariable(required = true) long id) throws PersonNotFoundException {
+        return personService.getPersonById(id);
+    }
+
+    @DeleteMapping("/{id}")
+    public void removePerson(@PathVariable(required = true) long id) {
+        personService.delete(id);
+    }
+
+
+}

spring-boot-configuration/src/main/java/com/baeldung/domain/Person.java

@@ -0,0 +1,38 @@
+package com.baeldung.domain;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+
+@Entity
+public class Person {
+
+    @Id
+    @GeneratedValue
+    private long id;
+    private String name;
+
+    public Person() {}
+
+    public Person(long id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}
+

spring-boot-configuration/src/main/java/com/baeldung/exception/PersonNotFoundException.java

@@ -0,0 +1,8 @@
+package com.baeldung.exception;
+
+public class PersonNotFoundException extends Exception {
+
+    public PersonNotFoundException(String message) {
+        super(message);
+    }
+}

spring-boot-configuration/src/main/java/com/baeldung/repository/PersonRepository.java

@@ -0,0 +1,9 @@
+package com.baeldung.repository;
+
+import com.baeldung.domain.Person;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface PersonRepository extends CrudRepository<Person, Long> {
+}

spring-boot-configuration/src/main/java/com/baeldung/service/PersonService.java

@@ -0,0 +1,34 @@
+package com.baeldung.service;
+
+import com.baeldung.domain.Person;
+import com.baeldung.exception.PersonNotFoundException;
+import com.baeldung.repository.PersonRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Optional;
+
+@Service
+public class PersonService {
+
+    @Autowired
+    PersonRepository personRepository;
+
+    public void add(Person person) {
+        personRepository.save(person);
+    }
+
+    public void delete(long id) {
+        personRepository.deleteById(id);
+    }
+
+    public List<Person> getPersons() {
+        return (List<Person>) personRepository.findAll();
+    }
+
+    public Person getPersonById(long id) throws PersonNotFoundException {
+        Optional<Person> optionalDog = personRepository.findById(id);
+        return optionalDog.orElseThrow(() -> new PersonNotFoundException("Couldn't find a Person with id: " + id));
+    }
+}

spring-boot-configuration/src/main/resources/application.properties

@@ -0,0 +1,3 @@
+# H2
+spring.h2.console.enabled=true
+spring.h2.console.path=/h2

spring-boot-configuration/src/main/resources/schema.sql

@@ -0,0 +1,5 @@
+CREATE TABLE `person` (
+  `id` INT(11) NOT NULL,
+  `name` VARCHAR(50) NULL DEFAULT NULL,
+  PRIMARY KEY (`id`)
+);

spring-boot-configuration/src/test/java/com/baeldung/ApplicationTests.java

@@ -0,0 +1,16 @@
+package com.baeldung;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class ApplicationTests {
+
+	@Test
+	public void contextLoads() {
+	}
+
+}