[스프링 입문] 5. 회원 관리 예제 - 웹 MVC 개발

subin·2022년 3월 28일

Spring Springboot

🌺Spring

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✍ 간단한 회원 관리 예제 만들어 보기

1. 홈 화면 추가

홈 컨트롤러 추가

package hello.hellospring.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;

@Controller
public class HomeController {

    @GetMapping("/")
    public String home() {
        return "home";
    }
}

회원 관리용 홈

<!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>

🔔 참고 사항

컨트롤러가 정적 파일보다 우선순위가 높다

2. 등록

회원 등록 폼 컨트롤러

package hello.hellospring.controller;


import hello.hellospring.domain.Member;
import hello.hellospring.service.MemberService;
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 {

    private final MemberService memberService;

    @Autowired
    public MemberController(MemberService memberService) {
        this.memberService = memberService;
    }

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

회원 등록 폼 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>

웹 등록 화면에서 데이터를 전달 받을 폼 객체

package hello.hellospring.controller;

public class MemberForm {

    private String name;

    public String getName() {
        return name;
    }

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

회원 컨트롤러에서 회원을 실제 등록하는 기능

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

        memberService.join(member);

        return "redirect:/";
    }

3. 조회

회원 컨트롤러에서 조회 기능

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

회원 리스트 HTML

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<body>

<div class="container">
    <dic>
        <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>
    </dic>
</div>
</body>
</html>