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‎README.md

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# SpringBooot
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<i>Here you will finds examples of spring boot concept</i>
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<ol>
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<li> <a href="/SpringFirstAppManually">Spring Boot FirstApp </a> </li>
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<li> <a href="/CommandLineRunners">Command Line Runners </a> </li>
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<li> <a href="/ProjectLombokExample">Project Lombok Example </a> </li>
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<li> <a href="/ProjectLombokConstrucors">Project Lombok Constructors </a> </li>
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<li> <a href="/SpringBootProfiles-code_change-Example">SpringBootProfiles-code_change-Example </a> </li>
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<li> <a href="/SpringBootProfiles-multiple-propertyFile">SpringBootProfiles-multiple-propertyFile</a> </li>
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<li> <a href="/SpringBootProfiles-multiple-property-OneYml">SpringBootProfiles-multiple-property-OneYml </a> </li>
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<li> <a href="/SpringBootProfiles-property_file-Example">SpringBootProfiles-property_file-Example</a> </li>
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<li> <a href="/SpringBootProfiles-service-based-multiple-profiles">SpringBootProfiles-service-based-multiple-profiles </a>
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<li> <a href="/SpringBootStarter-SpringContainer">SpringBootStarter-SpringContainer</a> </li>
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<li> <a href="/SpringBootStarter-othside-basePackage">SpringBootStarter-othside-basePackage</a> </li>
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<li> <a href="/SpringBootStarter-Configuration_Component">SpringBootStarter-Configuration_Component</a> </li>
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<li> <a href="/SpringBootStarter-autoLoadConfiguration">SpringBootStarter-autoLoadConfiguration</a> </li>
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</li>
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</ol>
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‎SpringBootCore/ApplicationRunners/pom.xml

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<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">
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<modelVersion>4.0.0</modelVersion>
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<groupId>org.sathyatech</groupId>
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<artifactId>ApplicationRunners</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<!-- 1. Parent Project -->
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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>2.1.4.RELEASE</version>
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</parent>
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<!-- 2. Properties -->
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<properties>
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<java.version>1.8</java.version>
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</properties>
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<!-- 3. Dependencies -->
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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</artifactId>
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</dependency>
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</dependencies>
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<!-- 4. build plugins -->
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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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</project>

‎SpringBootCore/ApplicationRunners/src/main/java/com/app/MyStarter.java

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package com.app;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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/*
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for giving input right click on app > Run configurations > arguments tab > provide arguments seprate by space
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--profile=dev clean start --profile=qa --db=oracle --db=mysql install --model=active
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*/
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@SpringBootApplication
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public class MyStarter {
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public static void main(String[] args) {
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SpringApplication.run(MyStarter.class, args);
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System.out.println("hii");
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}
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}

‎SpringBootCore/ApplicationRunners/src/main/java/com/app/runners/ConsoleRunner.java

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package com.app.runners;
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import java.util.List;
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import java.util.Set;
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import org.springframework.boot.ApplicationArguments;
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import org.springframework.boot.ApplicationRunner;
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import org.springframework.stereotype.Component;
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// the difference between CLR and AR is that AR store arguments (optional and non optional) as
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// optional - Map<String, List<String> , non-optional - List<String>
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@Component
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public class ConsoleRunner implements ApplicationRunner{
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@Override
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public void run(ApplicationArguments args) throws Exception {
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// all optional keys
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Set<String> optionKeys = args.getOptionNames();
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System.out.println(optionKeys);
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// all non-optional keys
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List<String> nonOptionKeys = args.getNonOptionArgs();
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System.out.println(nonOptionKeys);
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// all arguments
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String[] arg = args.getSourceArgs();
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System.out.println(arg);
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// check one key related value
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List<String> list = args.getOptionValues("profile");
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System.out.println(list);
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//check key exist
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System.out.println(args.containsOption("nature"));
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System.out.println(args.containsOption("db"));
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}
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}

‎SpringBootCore/ApplicationRunners/target/classes/META-INF/MANIFEST.MF

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Manifest-Version: 1.0
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Implementation-Title: ApplicationRunners
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Implementation-Version: 0.0.1-SNAPSHOT
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Built-By: The_Incredible_Srv
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Implementation-Vendor-Id: org.sathyatech
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Build-Jdk: 1.8.0_201
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Implementation-URL: https://projects.spring.io/spring-boot/#/spring-bo
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ot-starter-parent/ApplicationRunners
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Created-By: Maven Integration for Eclipse
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‎SpringBootCore/ApplicationRunners/target/classes/META-INF/maven/org.sathyatech/ApplicationRunners/pom.properties

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#Generated by Maven Integration for Eclipse
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#Mon Jun 03 17:05:45 IST 2019
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version=0.0.1-SNAPSHOT
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groupId=org.sathyatech
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m2e.projectName=ApplicationRunners
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m2e.projectLocation=C\:\\Users\\The_Incredible_Srv\\Documents\\spring\\springBoot\\ApplicationRunners
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artifactId=ApplicationRunners

‎SpringBootCore/ApplicationRunners/target/classes/META-INF/maven/org.sathyatech/ApplicationRunners/pom.xml

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<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">
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<modelVersion>4.0.0</modelVersion>
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<groupId>org.sathyatech</groupId>
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<artifactId>ApplicationRunners</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<!-- 1. Parent Project -->
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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>2.1.4.RELEASE</version>
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</parent>
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<!-- 2. Properties -->
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<properties>
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<java.version>1.8</java.version>
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</properties>
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<!-- 3. Dependencies -->
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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</artifactId>
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</dependency>
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</dependencies>
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<!-- 4. build plugins -->
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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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</project>

‎SpringBootCore/ApplicationRunners/target/classes/com/app/MyStarter.class

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‎SpringBootCore/ApplicationRunners/target/classes/com/app/runners/ConsoleRunner.class

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‎SpringBootCore/CommandLineRunnerWithInputs/pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0"
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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>org.sathya</groupId>
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<artifactId>SpringFirstAppManually</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<!-- 1. Parent Project -->
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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>2.1.5.RELEASE</version>
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</parent>
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<!-- 2. Properties -->
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<properties>
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<java.version>1.8</java.version>
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<maven-jar-plugin.version>3.1.1</maven-jar-plugin.version>
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</properties>
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<!-- 3. Dependencies -->
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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</artifactId>
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</dependency>
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</dependencies>
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<!-- 4. build plugins -->
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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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</project>

‎SpringBootCore/CommandLineRunnerWithInputs/src/main/java/com/app/StarterInput.java

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package com.app;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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// starting point of application
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@SpringBootApplication // consist of @Component ,@Configuration ...
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public class StarterInput {
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public static void main(String[] args) {
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System.out.println(" from starter ");
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SpringApplication.run(StarterInput.class, args);
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}
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}

‎SpringBootCore/CommandLineRunnerWithInputs/src/main/java/com/app/runners/RunnerWithInput.java

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package com.app.runners;
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import java.util.Arrays;
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import org.springframework.boot.CommandLineRunner;
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import org.springframework.core.Ordered;
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import org.springframework.stereotype.Component;
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/* there are two runners in spring boot
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* 1. CommandLineRunner (legacy runner)
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* 2.ApplicationRunner
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*
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* runners are to execute java login once on starting .
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* We can hae multiple runners and they are executed according to naming convention .
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* we can also define naming using @Order(int) or implementing Order interface .
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*
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* */
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@Component // bvs run method is instance method so obj needed to call it ,that will be created by spring container
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public class RunnerWithInput implements CommandLineRunner{
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@Override
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public void run(String... args) throws Exception {
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System.out.println("from runner ");
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System.out.println("inputs : "+Arrays.asList(args));
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}
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}

‎SpringBootCore/CommandLineRunnerWithInputs/target/classes/META-INF/MANIFEST.MF

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Manifest-Version: 1.0
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Implementation-Title: SpringFirstAppManually
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Implementation-Version: 0.0.1-SNAPSHOT
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Built-By: The_Incredible_Srv
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Implementation-Vendor-Id: org.sathya
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Build-Jdk: 1.8.0_201
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Implementation-URL: https://projects.spring.io/spring-boot/#/spring-bo
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ot-starter-parent/SpringFirstAppManually
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Created-By: Maven Integration for Eclipse
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‎SpringBootCore/CommandLineRunnerWithInputs/target/classes/META-INF/maven/org.sathya/SpringFirstAppManually/pom.properties

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#Generated by Maven Integration for Eclipse
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#Mon Jun 03 10:40:28 IST 2019
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version=0.0.1-SNAPSHOT
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groupId=org.sathya
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m2e.projectName=CommandLineRunnerWithInputs
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m2e.projectLocation=C\:\\Users\\The_Incredible_Srv\\Documents\\spring\\springBoot\\CommandLineRunnerWithInputs
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artifactId=SpringFirstAppManually

‎SpringBootCore/CommandLineRunnerWithInputs/target/classes/META-INF/maven/org.sathya/SpringFirstAppManually/pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0"
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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>org.sathya</groupId>
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<artifactId>SpringFirstAppManually</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<!-- 1. Parent Project -->
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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>2.1.5.RELEASE</version>
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</parent>
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<!-- 2. Properties -->
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<properties>
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<java.version>1.8</java.version>
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<maven-jar-plugin.version>3.1.1</maven-jar-plugin.version>
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</properties>
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<!-- 3. Dependencies -->
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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</artifactId>
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</dependency>
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</dependencies>
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<!-- 4. build plugins -->
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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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</project>

‎SpringBootCore/CommandLineRunnerWithInputs/target/classes/com/app/StarterInput.class

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‎SpringBootCore/CommandLineRunnerWithInputs/target/classes/com/app/runners/RunnerWithInput.class

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‎SpringBootCore/CommandLineRunners/pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0"
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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>org.sathya</groupId>
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<artifactId>SpringFirstAppManually</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<!-- 1. Parent Project -->
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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>2.1.5.RELEASE</version>
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</parent>
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<!-- 2. Properties -->
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<properties>
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<java.version>1.8</java.version>
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<maven-jar-plugin.version>3.1.1</maven-jar-plugin.version>
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</properties>
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<!-- 3. Dependencies -->
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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</artifactId>
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</dependency>
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</dependencies>
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<!-- 4. build plugins -->
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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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</project>

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