Standalone Application Using Spring Boot

Spring-Boot/spring-boot-standalone-application/src/main/java/com/javadevjournal/SpringBootStandaloneApplication.java

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+package com.javadevjournal;
+
+import com.javadevjournal.service.DefaultHelloService;
+import com.javadevjournal.service.HelloService;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+
+import javax.annotation.Resource;
+
+@SpringBootApplication
+public class SpringBootStandaloneApplication implements CommandLineRunner {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringBootStandaloneApplication.class, args);
+    }
+
+    @Bean
+    public HelloService getHelloService(){
+        return  new DefaultHelloService();
+    }
+
+    @Override
+    public void run(String... args) throws Exception {
+        getHelloService().hello();
+    }
+}

Spring-Boot/spring-boot-standalone-application/src/main/java/com/javadevjournal/service/DefaultHelloService.java

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+package com.javadevjournal.service;
+
+public class DefaultHelloService implements HelloService {
+
+    @Override
+    public void hello() {
+        System.out.println("Hello from Hello Service");
+    }
+}

Spring-Boot/spring-boot-standalone-application/src/main/java/com/javadevjournal/service/HelloService.java

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+package com.javadevjournal.service;
+
+public interface HelloService {
+
+    void hello();
+}

Spring-Boot/spring-boot-standalone-application/src/test/java/com/javadevjournal/SpringBootStandaloneApplicationTests.java

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+package com.javadevjournal;
+
+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 SpringBootStandaloneApplicationTests {
+
+    @Test
+    public void contextLoads() {
+    }
+
+}