Spring 흐름

MemberController -> MemberService -> MemberDAO -> SqlSession -> memberMapper.xml

@Inject

MemberDAO memberDao;

MemberDAO memberDao = new MemberDAOImpl();

위의 두 코드가 같은 의미

public class MemberController {

@Inject

MemberService memberService;

}

// @ModelAttribute : 폼에서 전달된 값을 저장하는 객체

@RequestMapping("member/insert.do")

public String insert(@ModelAttribute MemberDTO dto) {

return "redirect:/member/list.do";

}

@ModelAttribute 생략가능, insert.jsp에서 폼에서 넣긴 값을 받아서 넘기는 것.

public String insert(@RequestParam String userid,

@RequestParam String passwd) {

return "redirect:/member/list.do";

}

// 이런식으로도 사용가능 하지만 @ModelAttribute가 코드의 양을 줄일수 있어

insert.do -> MemberController -> MemberService -> MemberServiceImpl 

-> MemberDAO -> MemberDAOImpl -> memberMapper.xml

service는 계좌이체, 상품구매, 결제 등 제공되는 서비스의 단위

@Transactional

void method(){

memberDao.insertMember(dto);

memberDao.deleteMemberMember(dto.getUserid());

}

// 이렇게 되면 deleteMemberMember하다가 오류가 뜨면 전체가 rollback

<td><a href="${path}/member/view.do?userid=${row.userid}">${row.name}</a></td>

<input name="userid" value="${dto.userid}" readonly>

비밀번호 체크 sql

select count(*) from member

where userid = #{userid} and passwd = #{passwd}

컨트롤러 : @Controller, @RestController

서비스 : @Service 

모델(dao) : @Repository

dto -> json opensource lib

https://www.lesstif.com/pages/viewpage.action?pageId=24445183

servlet-conn

<resources location="/WEB-INF/views/include" mapping="/include/**"></resources>

<resources location="/WEB-INF/views/images" mapping="/images/**"></resources>

base-package = "com.example.spring02"

com.example.spring02 패키지 포함

base-package = "com.example.spring02.*"

com.example.spring02 패키지 제외

com.example.spring02.HomeController.java

com.example.spring02.memo.HomeController.java

<td><fmt:formatDate value="${row.post_date}" pattern="yyyy-MM-dd HH:mm:ss"/></td>

restful 주소 처리시

@RequestMapping("view/{idx}")

public ModelAndView view(@PathVariable int idx, ModelAndView mav) {

mav.setViewName("memo/view");

mav.addObject("dto", memoService.memo_view(idx));

return mav;

}

public interface MemoService {

public List<MemoDTO> list();

public void insert(MemoDTO dto);

public MemoDTO memo_view(int idx);

public void update(MemoDTO dto);

public void delete(int idx);

}