Maven + Spring 사용 기초

사용 환경

• Windows 10
• Java 1.8
• Maven 3.8.2
• Spring 5.0.6

Hello 프로젝트 따라하기

1. 프로젝트 생성

   >mvn archetype:generate -DgroupId=trvoid -DartifactId=hello -DarchetypeArtifactId=maven-archetype-quickstart -DarchetypeVersion=1.4 -DinteractiveMode=false
   

   생성된 프로젝트 폴더 구조는 아래와 같습니다.

   hello
     |-src
       |-main
         |-java
           |-trvoid
             |-App.java
       |-test
         |-java
           |-trvoid
             |-AppTest.java
     |-pom.xml
   

2. 의존성 추가

   pom.xml

   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-core</artifactId>
     <version>5.0.6.RELEASE</version>
   </dependency>
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-context</artifactId>
     <version>5.0.6.RELEASE</version>
   </dependency>
   

3. 서비스 추가

   src/main/java/trvoid/HelloManager.java

   package trvoid;
   
   public interface HelloManager {
       public String getServiceName();
   }
   

   src/main/java/trvoid/HelloManagerImpl.java

   package trvoid;
   
   public class HelloManagerImpl implements HelloManager {
       @Override
       public String getServiceName() {
           return "My Hello Service";
       }
   }
   

4. 빈 추가

   src/main/java/trvoid/AppConfig.java

   package trvoid;
   
   import org.springframework.context.annotation.Bean;
   import org.springframework.context.annotation.Configuration;
   
   @Configuration
   public class AppConfig {
       @Bean(name="helloService")
       public HelloManager getHelloManager() {
           return new HelloManagerImpl();
       }
   }
   

5. 메인 클래스 수정

   src/main/java/trvoid/App.java

   package trvoid;
   
   import org.springframework.context.ApplicationContext;
   import org.springframework.context.annotation.AnnotationConfigApplicationContext;
   
   public class App {
       public static void main(String[] args) {
           ApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
           
           HelloManager hello = (HelloManager)context.getBean("helloService");
           
           System.out.println(hello.getServiceName());
       }
   }
   

6. 컴파일

   >mvn compile
   

7. 실행

   >mvn exec:java -Dexec.mainClass=trvoid.App
   

   실행 결과

   [INFO] Scanning for projects...
   [INFO]
   [INFO] ----------------------------< trvoid:hello >----------------------------
   [INFO] Building hello 1.0-SNAPSHOT
   [INFO] --------------------------------[ jar ]---------------------------------
   [INFO]
   [INFO] --- exec-maven-plugin:3.0.0:java (default-cli) @ hello ---
   9월 07, 2021 10:30:09 오전 org.springframework.context.support.AbstractApplicationContext prepareRefresh
   정보: Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@2695bde4: startup date [Tue Sep 07 10:30:09 KST 2021]; root of context hierarchy
   My Hello Service
   [INFO] ------------------------------------------------------------------------
   [INFO] BUILD SUCCESS
   [INFO] ------------------------------------------------------------------------
   [INFO] Total time:  0.773 s
   [INFO] Finished at: 2021-09-07T10:30:09+09:00
   [INFO] ------------------------------------------------------------------------
   

Written with StackEdit.