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Ranga Rao KaranamRanga Rao Karanam
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I'm too lazy to put in a comment
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‎spring-boot-tutorial-basics-configuration/.gitignore

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target/
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!.mvn/wrapper/maven-wrapper.jar
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### STS ###
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.apt_generated
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.classpath
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.factorypath
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.project
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.settings
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.springBeans
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### IntelliJ IDEA ###
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.idea
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*.iws
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*.iml
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*.ipr
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### NetBeans ###
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nbproject/private/
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build/
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nbbuild/
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dist/
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nbdist/
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.nb-gradle/

‎spring-boot-tutorial-basics-configuration/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.in28minutes.springboot.tutorial.basics.application.configuration</groupId>
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<artifactId>spring-boot-tutorial-basics-configuration</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>spring-boot-tutorial-basics-configuration</name>
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<description>Spring Boot Tutorial - Application Configuration with Profiles and YAML</description>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>2.0.0.M6</version>
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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
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<java.version>1.8</java.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-actuator</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-data-jpa</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-devtools</artifactId>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>com.h2database</groupId>
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<artifactId>h2</artifactId>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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<repositories>
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<repository>
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<id>spring-snapshots</id>
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<name>Spring Snapshots</name>
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<url>https://repo.spring.io/snapshot</url>
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<snapshots>
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<enabled>true</enabled>
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</snapshots>
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</repository>
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<repository>
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<id>spring-milestones</id>
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<name>Spring Milestones</name>
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<url>https://repo.spring.io/milestone</url>
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<snapshots>
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<enabled>false</enabled>
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</snapshots>
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</repository>
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</repositories>
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<pluginRepositories>
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<pluginRepository>
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<id>spring-snapshots</id>
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<name>Spring Snapshots</name>
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<url>https://repo.spring.io/snapshot</url>
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<snapshots>
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<enabled>true</enabled>
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</snapshots>
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</pluginRepository>
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<pluginRepository>
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<id>spring-milestones</id>
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<name>Spring Milestones</name>
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<url>https://repo.spring.io/milestone</url>
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<snapshots>
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<enabled>false</enabled>
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</snapshots>
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</pluginRepository>
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</pluginRepositories>
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</project>

‎spring-boot-tutorial-basics-configuration/src/main/java/com/in28minutes/springboot/tutorial/basics/application/configuration/BasicConfiguration.java

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package com.in28minutes.springboot.tutorial.basics.application.configuration;
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import org.springframework.boot.context.properties.ConfigurationProperties;
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import org.springframework.stereotype.Component;
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@Component
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@ConfigurationProperties("basic")
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public class BasicConfiguration {
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private boolean value;
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private String message;
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private int number;
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public boolean isValue() {
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return value;
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}
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public void setValue(boolean value) {
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this.value = value;
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}
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public String getMessage() {
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return message;
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}
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public void setMessage(String message) {
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this.message = message;
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}
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public int getNumber() {
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return number;
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}
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public void setNumber(int number) {
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this.number = number;
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}
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}

‎spring-boot-tutorial-basics-configuration/src/main/java/com/in28minutes/springboot/tutorial/basics/application/configuration/SpringBootTutorialBasicsConfigurationApplication.java

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package com.in28minutes.springboot.tutorial.basics.application.configuration;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Profile;
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@SpringBootApplication
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public class SpringBootTutorialBasicsConfigurationApplication {
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public static void main(String[] args) {
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ApplicationContext applicationContext = SpringApplication
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.run(SpringBootTutorialBasicsConfigurationApplication.class, args);
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for (String name : applicationContext.getBeanDefinitionNames()) {
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System.out.println(name);
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}
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}
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@Profile("dev")
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@Bean
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public String devBean() {
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return "dev";
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}
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@Profile("qa")
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@Bean
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public String qaBean() {
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return "qa";
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}
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@Profile("prod")
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@Bean
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public String prodBean() {
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return "prod";
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}
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}

‎spring-boot-tutorial-basics-configuration/src/main/java/com/in28minutes/springboot/tutorial/basics/application/configuration/WelcomeResource.java

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package com.in28minutes.springboot.tutorial.basics.application.configuration;
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import java.util.HashMap;
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import java.util.Map;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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@RestController
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public class WelcomeResource {
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@Value("${welcome.message}")
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private String welcomeMessage;
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@GetMapping("/welcome")
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public String retrieveWelcomeMessage() {
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// Complex Method
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return welcomeMessage;
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}
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@Autowired
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private BasicConfiguration configuration;
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@RequestMapping("/dynamic-configuration")
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public Map<String, Object> dynamicConfiguration() {
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// Not the best practice to use a map to store differnt types!
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Map<String, Object> map = new HashMap<>();
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map.put("message", configuration.getMessage());
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map.put("number", configuration.getNumber());
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map.put("key", configuration.isValue());
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return map;
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}
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}

‎spring-boot-tutorial-basics-configuration/src/main/resources/application-dev.properties

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welcome.message=Welcome message from property file! Welcome to ${app.name} in DEV

‎spring-boot-tutorial-basics-configuration/src/main/resources/application-prod.properties

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logging.level.org.springframework: INFO

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

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spring.profiles.active=dev
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logging.level.org.springframework.web.servlet: DEBUG
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app.name=in28Minutes
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welcome.message=Welcome message from property file! Welcome to ${app.name}
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basic.value: true
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basic.message: Dynamic Message
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basic.number: 100

‎spring-boot-tutorial-basics-configuration/src/main/resources/application.yaml

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logging:
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level:
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org.springframework: INFO
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org.springframework.web.servlet: DEBUG
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basic:
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value: true
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message: Dynamic Message YAML
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number: 100

‎spring-boot-tutorial-basics-configuration/src/test/java/com/in28minutes/springboot/tutorial/basics/application/configuration/SpringBootTutorialBasicsConfigurationApplicationTests.java

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package com.in28minutes.springboot.tutorial.basics.application.configuration;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.boot.test.context.SpringBootTest;
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import org.springframework.test.context.junit4.SpringRunner;
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@RunWith(SpringRunner.class)
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@SpringBootTest
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public class SpringBootTutorialBasicsConfigurationApplicationTests {
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@Test
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public void contextLoads() {
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}
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}

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