[Spring] 설정 및 구현 - 생명주기, MVC

목차

🍓  1. 빈(Bean) 객체의 생명주기(Life Cycle)

🍓  2. 어노테이션을 이용한 스프링 설정

🍓  3. 웹 프로그래밍 설계 모델

🍓  4. 스프링 MVC 웹서비스 

🍓  5. STS를 이용하지 않은 웹 프로젝트

🍓  6. Service & Dao 객체 구현 

🍓  7. Controller 객체 구현 

 

 

 

 

🍓  1. 빈(Bean) 객체의 생명주기(Life Cycle)

스프링 컨테이너 생성시점과 빈객체의 생성시점은 동일하다.

 

 

 

 

 

🍓  2. 어노테이션을 이용한 스프링 설정

 

 

 

 

🍓 3. 웹 프로그래밍 설계 모델

13-1 웹프로그래밍을 구축하기 위한설계모델 

13-2 스프링MVC플레임워크 설계 구조 

13-3 DispatcherServlet 설정 

13-4 Controller 객체 -@Controller 

13-5 Controller 객체 -@RequestMapping 

13-6 Controller 객체 –Model 타입의 파라미터 

13-7 View 객체 

13-8 전체적인 웹프로그래밍 구조 

 

동작

1. Client -> DispatcherServlet 으로 요청 (Request )

2. DispatcherServlet -> HandlerMapping 가장 적합한 Controller를 찾음

3. HandlerAdapter -> Controller 요청처리 -> DispatcherServlet 찾아준 Controller 안에 가장 적합한 메소드 찾음

4. DispatcherServlet -> ViewResolver 처리결과에 해당하는 View(JSP)가 어떤 것인지 찾아줌

5. DispatcherServlet -> View 응답 생성

6. View -> Client 화면에 응답

 

 

 

 

 

 

🍓 4. 스프링 MVC 웹서비스 

 STS를이용한 웹프로젝트 생성 

15-1 프로젝트 전체구조 

15-2 web.xml 

15-3 DispatcherServlet 

15-4 servlet-context.xml 

15-5 Controller(컨트롤러) 

15-6 View(뷰) 

 

 

web.xml

• DispatcherServlet 설정

<!-- Processes application requests -->
	<servlet>
		<servlet-name>appServlet</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
		
	<servlet-mapping>
		<servlet-name>appServlet</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>

• 서버에 한글깨지지 않도록 설정

<filter>
		<filter-name>encodingFilter</filter-name>
		<filter-class>
			org.springframework.web.filter.CharacterEncodingFilter     
		</filter-class>
		<init-param>
			<param-name>encoding</param-name>   
			<param-value>UTF-8</param-value>
		</init-param>
		<init-param>
			<param-name>forceEncoding</param-name>  
			<param-value>true</param-value>
		</init-param>
	</filter>    

	<filter-mapping>
		<filter-name>encodingFilter</filter-name>
		<url-pattern>/*</url-pattern>                 
	</filter-mapping>

 

web.xml

서블릿으로 등록 될 때contextConfigLocation이름으로초기화 파라미 터를 servlet-context.xml로 지정하고 있는데 이때 지정된 servlet-context.xml파일이 스프링 설정의 역할을 하는 파일이다. 

<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
		</init-param>

 

 

servlet-context.xml

프로젝트에 필요한 객체(빈:bean) 를생성하고 조립한다.

<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<beans:property name="prefix" value="/WEB-INF/views/" />
		<beans:property name="suffix" value=".jsp" />
	</beans:bean>

 

 

 

🍓 7. Controller 객체 구현 

18-1 웹어플리케이션 준비 

18-2 @RequestMapping을이용한 URL맵핑 

18-3 요청파라미터

19-1 @ModelAttribute 

19-2 커맨드객체 프로퍼티 데이터타입 

19-3 Model & ModelAndViewspring 

 

 

Controller -> Service -> Dao

 

 

MemberController.java

@Controller
@RequestMapping("/member")
public class MemberController {

	@Autowired
	MemberService service;
    
    @RequestMapping(value = "/memJoin", method = RequestMethod.POST)
	public String memJoin(Member member) {
		
		service.memberRegister(member);
		
		return "memJoinOk";
	}
}

 

 

MemberService.java

public interface MemberService{
	void memberRegister( Member member );
}

 

MemberServiceImpl.java

@Service
public class MemberServiceImpl implements MemberService{
	@AutoWired
    MemberDao dao;
    
    @Override
    public void memberRegister (Member member)
    {
    	printMembers(dao.memberInsert(member));
    }
}

 

 

MemberDao.java

public interface MemberDao{
	Map<String, Member> memberInsert (Member member);
}

 

MemberDaoImpl.java

@Repository
public class MemberDaoImpl implements MemberDao{
	private HashMap<String, Member> dbMap;
    
    public MemberDaoImpl(){
    	dbMap = new HashMap<String, Member>
    }
    
    @Override
    public Map<String, Member> memberInsert (Member member){
    	dbMap.put(member.getMemId(), member);
        return dbMap;
    }
}