스프링부트 시작하기(이클립스 vs 인텔리제이)

Posted on: 2020년 03월 15일 2020년 03월 15일
Categories: Spring Framework, 강의자료, 웹프로그래밍

참조 :
1. https://blog.naver.com/tnakekd/221780479266
2. https://blog.dalso.org/srping-web-project/5287

Eclipse로 개발환경 설정하기

JDK 설치 : jdk1.8.0_241 설치(64비트용) : https://www.oracle.com/java/
이클립스 설치 : https://www.eclipse.org/downloads/packages/
이클립스에 STS 추가 :
1. STS : 이클립스에서 Spring 응용 프로그램 개발을 위해 만들어진 개발환경
2. 이클립스 Help 메뉴 -> Eclipse Marketplace 메뉴 선택
3. Find에서 STS 검색 후 2개 모두 설치
5. Find에서 buildship 검색해서 Minimalist Gradle Editor 1.0.1 설치
6. Confirm Selected Features -> Confirm
7. Review Licenses -> I accept the terms of the license agreements

스프링 프로젝트 생성하기

Eclipse의 File -> New -> Other -> Spring Boot -> Spring Starter Project

프로젝트 우 클릭 -> Run As -> Spring Boot App 클릭

Console에 다음과 같이 출력되면 성공

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::  (v2.2.6.BUILD-SNAPSHOT)

2020-03-15 19:01:22.091  INFO 24848 --- [  restartedMain] kr.co.moak.Exam01Application             : Starting Exam01Application on MoakPC with PID 24848 (E:\WorkSpace\Exam01\bin\main started by whan in E:\WorkSpace\Exam01)
2020-03-15 19:01:22.093  INFO 24848 --- [  restartedMain] kr.co.moak.Exam01Application             : No active profile set, falling back to default profiles: default
2020-03-15 19:01:22.120  INFO 24848 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2020-03-15 19:01:22.120  INFO 24848 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
2020-03-15 19:01:22.675  INFO 24848 --- [  restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2020-03-15 19:01:22.680  INFO 24848 --- [  restartedMain] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2020-03-15 19:01:22.680  INFO 24848 --- [  restartedMain] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.31]
2020-03-15 19:01:22.751  INFO 24848 --- [  restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2020-03-15 19:01:22.751  INFO 24848 --- [  restartedMain] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 631 ms
2020-03-15 19:01:22.862  INFO 24848 --- [  restartedMain] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2020-03-15 19:01:22.942  INFO 24848 --- [  restartedMain] o.s.b.d.a.OptionalLiveReloadServer       : LiveReload server is running on port 35729
2020-03-15 19:01:22.970  INFO 24848 --- [  restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2020-03-15 19:01:22.972  INFO 24848 --- [  restartedMain] kr.co.moak.Exam01Application             : Started Exam01Application in 1.08 seconds (JVM running for 2.319)

. ____ _ __ _ _

/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \

( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \

\\/ ___)| |_)| | | | | || (_| | ) ) ) )

' |____| .__|_| |_|_| |_\__, | / / / /

=========|_|==============|___/=/_/_/_/

:: Spring Boot :: (v2.2.6.BUILD-SNAPSHOT)

2020-03-15 19:01:22.091 INFO 24848 --- [ restartedMain] kr.co.moak.Exam01Application : Starting Exam01Application on MoakPC with PID 24848 (E:\WorkSpace\Exam01\bin\main started by whan in E:\WorkSpace\Exam01)

2020-03-15 19:01:22.093 INFO 24848 --- [ restartedMain] kr.co.moak.Exam01Application : No active profile set, falling back to default profiles: default

2020-03-15 19:01:22.120 INFO 24848 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable

2020-03-15 19:01:22.120 INFO 24848 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'

2020-03-15 19:01:22.675 INFO 24848 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)

2020-03-15 19:01:22.680 INFO 24848 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat]

2020-03-15 19:01:22.680 INFO 24848 --- [ restartedMain] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.31]

2020-03-15 19:01:22.751 INFO 24848 --- [ restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext

2020-03-15 19:01:22.751 INFO 24848 --- [ restartedMain] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 631 ms

2020-03-15 19:01:22.862 INFO 24848 --- [ restartedMain] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'

2020-03-15 19:01:22.942 INFO 24848 --- [ restartedMain] o.s.b.d.a.OptionalLiveReloadServer : LiveReload server is running on port 35729

2020-03-15 19:01:22.970 INFO 24848 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''

2020-03-15 19:01:22.972 INFO 24848 --- [ restartedMain] kr.co.moak.Exam01Application : Started Exam01Application in 1.08 seconds (JVM running for 2.319)

HelloWorld 출력

kr.co.moak.controller 패키지 생성

HelloController.java 클래스 생성

package kr.co.moak.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;


@RestController
public class HelloController {

	@RequestMapping("/")
	public String hello() {
		return "Hello World";
	}
}

package kr.co.moak.controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

@RestController

public class HelloController {

@RequestMapping("/")

public String hello() {

return "Hello World";

}

@RequestMapping(“/”) -> @GetMapping(“/”)으로 변경됨
웹브라우저에 http://localhost:8080 입력하면 Hello World 출력되면 성공

Hello Sub 출력

HelloController.java 클래스 수정

package kr.co.moak.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;


@RestController
public class HelloController {

	@RequestMapping("/")
	public String hello() {
		return "Hello World";
	}

	@RequestMapping("/sub")
	public String sub() {
		return "Hello Sub";
	}

}

package kr.co.moak.controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

@RestController

public class HelloController {

@RequestMapping("/")

public String hello() {

return "Hello World";

}

@RequestMapping("/sub")

public String sub() {

return "Hello Sub";

}

웹브라우저에 http://localhost:8080/sub 입력하면 Hello Sub 출력되면 성공

새로 실행시키기 전에 항상 웹을 중지시켜야 함

인텔리제이(Intellij)로 개발환경 구성하기

IntelliJ Ultimate 버전 : 유료
1. Spring Initializer 가 기본으로 있음
  1. spring-boot-starter-parent와 spring-boot-starter-web 의존성
  2. spring-boot-maven-plugin 빌드 플러그인 포함

IntelliJ Community 버전 : 무료

Spring Initializer 를 기본으로 사용 불가
https://start.spring.io/ 에 접속해서 프로젝트를 생성하여 불러오는 것이 편리
1. Project : Gradle Project
2. Language : Java
3. Spring Boot : 2.2.5
4. Group : kr.co.moak
5. Artifact : demo
6. Packaging : Jar
7. Java : 8
8. Dependencies : Lombok, Spring Web
9. Generate – Ctrl 을 누르면 demo.zip으로 저장됨
demo.zip을 압축을 풀고 IntelliJ에서 불러오기
src/main/java/kr.co.moak.demo/DemoApplication.java 열고 Run->Run 메뉴 실행하고 웹브라우저에서 http:/localhost:8080 접속했을 때 다음과 같은 결과가 나오면 성공

HelloWorld 출력

kr.co.moak.controller 패키지 생성

HelloController.java 클래스 생성

package kr.co.moak.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;


@RestController
public class HelloController {

	@RequestMapping("/")
	public String hello() {
		return "Hello World";
	}
}

package kr.co.moak.controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

@RestController

public class HelloController {

@RequestMapping("/")

public String hello() {

return "Hello World";

}

@RequestMapping(“/”) -> @GetMapping(“/”)으로 변경됨
웹브라우저에 http://localhost:8080 입력하면 Hello World 출력되면 성공

Hello Sub 출력
1. 위 이클립스와 동일
새로 실행시키기 전에 항상 웹을 중지시켜야 함

whan0623

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