스프링 입문 맛보기 5

Spring 정리 2021. 7. 14. 13:28

인프런 강의 5일차.

 - 스프링 입문 - 코드로 배우는 스프링 부트, 웹 MVC, DB 접근 기술 (김영한 강사님)

 

* 회원 관리 예제 - 웹 MVC 개발

 1. MemberController.java

package hello.hellospring.controller;

import hello.hellospring.Service.MemberService;
import hello.hellospring.domain.Member;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;

import java.util.List;

@Controller
public class MemberController {

    //MemberService.java내에 @Service가 선언되어 있지 않으면 최소 서버 띄울 때 ComponentScan에서 에러가 발생한다!
    //에러 내용 : Consider defining a bean of type 'hello.hellospring.Service.MemberService' in your configuration.
    private final MemberService memberService;
/*
    //필드 주입
    @Autowired private MemberService memberService;

    //세터 주입
    @Autowired
    public void setMemberService(MemberService memberService) {
        this.memberService = memberService;
    }
*/
    //생성자 주입
    @Autowired
    public MemberController(MemberService memberService){
        this.memberService = memberService;
    }

    @GetMapping("/members/new")
    public String createForm(){
        return "members/createMemberForm";
    }

    @PostMapping("/members/new")
    public String create(MemberForm form){
        Member member = new Member();
        member.setName(form.getName());

        memberService.join(member);

        return "redirect:/";
    }

    @GetMapping("/members")
    public String list(Model model){
        List<Member> members = memberService.findMembers();
        model.addAttribute("members", members);
        return "members/memberList";
    }
}

 > createForm, create, list 메소드 추가

 2. MemberForm.java

package hello.hellospring.controller;

public class MemberForm {
    private String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

 3. home.html

<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<body>
<div class="container">
    <div>
        <h1>Hello Spring</h1>
        <p>회원 기능</p>
        <p>
            <a href="/members/new">회원 가입</a>
            <a href="/members">회원 목록</a>
        </p>
    </div>
</div>
</body>
</html>

 > 최초 화면 폼

 

 4. createMemberForm.html

<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<body>
<div class="container">
    <form action="/members/new" method="post">
        <div class="form-group">
            <label for="name">이름</label>
            <input type="text" id="name" name="name" placeholder="이름을 입력하세요">
        </div>
        <button type="submit">등록</button>
    </form>
</div>
</body>
</html>

 > 회원가입 폼

 

 5. memberList.html

<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<body>
<div class="container">
    <div>
        <table>
            <thead>
            <tr>
                <th>#</th>
                <th>이름</th>
            </tr>
            </thead>
            <tbody>
            <tr th:each="member : ${members}">
                <td th:text="${member.id}"></td>
                <td th:text="${member.name}"></td>
            </tr>
            </tbody>
        </table>
    </div>
</div>
</body>
</html>

 > 회원 리스트 폼

 

 

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