Add Hello World sample apps with and without Spring Boot

Author: fmbenhassine

spring-shell-samples/pom.xml

@@ -15,6 +15,7 @@
 
 	<modules>
 		<module>spring-shell-sample-hello-world</module>
+		<module>spring-shell-sample-hello-world-spring-boot</module>
 		<module>spring-shell-sample-catalog</module>
 		<module>spring-shell-sample-commands</module>
 	</modules>

spring-shell-samples/spring-shell-sample-hello-world-spring-boot/pom.xml

@@ -0,0 +1,35 @@
+<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<parent>
+		<groupId>org.springframework.shell</groupId>
+		<artifactId>spring-shell-samples</artifactId>
+		<version>4.0.0-SNAPSHOT</version>
+	</parent>
+
+	<artifactId>spring-shell-sample-hello-world-spring-boot</artifactId>
+	<name>Spring Shell Samples - Hello World with Spring Boot</name>
+	<packaging>jar</packaging>
+	<description>Hello World Spring Boot based Shell application</description>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.shell</groupId>
+			<artifactId>spring-shell-starter</artifactId>
+			<version>${project.parent.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.hibernate.validator</groupId>
+			<artifactId>hibernate-validator</artifactId>
+			<version>${hibernate-validator.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.glassfish</groupId>
+			<artifactId>jakarta.el</artifactId>
+			<version>${jakarta.el.version}</version>
+		</dependency>
+	</dependencies>
+
+</project>

spring-shell-samples/spring-shell-sample-hello-world-spring-boot/src/main/java/org/springframework/shell/samples/helloworld/boot/SpringShellApplication.java

@@ -0,0 +1,20 @@
+package org.springframework.shell.samples.helloworld.boot;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.shell.core.command.annotation.Command;
+import org.springframework.shell.core.command.annotation.Option;
+
+@SpringBootApplication
+public class SpringShellApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(SpringShellApplication.class, args);
+	}
+
+	@Command
+	public String hello(@Option(defaultValue = "World") String name) {
+		return "Hello " + name + "!";
+	}
+
+}

spring-shell-samples/spring-shell-sample-hello-world-spring-boot/src/main/resources/logback.xml

@@ -0,0 +1,15 @@
+<configuration>
+
+	<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
+		<layout class="ch.qos.logback.classic.PatternLayout">
+			<Pattern>
+				%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n
+			</Pattern>
+		</layout>
+	</appender>
+
+	<root level="info">
+		<appender-ref ref="CONSOLE"/>
+	</root>
+
+</configuration>

spring-shell-samples/spring-shell-sample-hello-world/pom.xml

@@ -16,7 +16,7 @@
 	<dependencies>
 		<dependency>
 			<groupId>org.springframework.shell</groupId>
-			<artifactId>spring-shell-starter</artifactId>
+			<artifactId>spring-shell-core</artifactId>
 			<version>${project.parent.version}</version>
 		</dependency>
 

spring-shell-samples/spring-shell-sample-hello-world/src/main/java/org/springframework/shell/samples/helloworld/SpringShellApplication.java

@@ -1,18 +1,19 @@
 package org.springframework.shell.samples.helloworld;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.shell.core.ShellRunner;
 import org.springframework.shell.core.command.annotation.Command;
 import org.springframework.shell.core.command.annotation.EnableCommand;
 import org.springframework.shell.core.command.annotation.Option;
 
-@SpringBootApplication
 @EnableCommand(SpringShellApplication.class)
-@Command
 public class SpringShellApplication {
 
-	public static void main(String[] args) {
-		SpringApplication.run(SpringShellApplication.class, args);
+	public static void main(String[] args) throws Exception {
+		ApplicationContext context = new AnnotationConfigApplicationContext(SpringShellApplication.class);
+		ShellRunner runner = context.getBean(ShellRunner.class);
+		runner.run(args);
 	}
 
 	@Command