[初心-Spring Boot] 예제를 통한 MVC 패턴 설계 (3) - View

루핑투핑 기술 다이어리·2021년 7월 13일

초심-spring boot

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1. Home 화면 제작

1-1. HomeController 생성

HomeController.java

package com.rptp.rptpSpringBoot.controller;

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

@Controller
public class HomeController {

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

1-2. Home.html 생성

Home.html

<!DOCTYPE html>
<html lang="kr" xmlns:th="http://www.thymeleaf.org">
<head>
    <title>Hello Hello</title>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<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>

2. 맴버 생성 기능 구현

2-1. CreateJoinForm.html 생성

CreateJoinForm.html

<!DOCTYPE html>
<html lang="kr" xmlns:th="http://www.thymeleaf.org">
<head>
  <title>Hello Hello</title>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<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>

2-2. MemberForm 클래스 생성

MemberForm.java

package com.rptp.rptpSpringBoot.controller;

public class MemberForm {
    private String name;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
}

2-3. MemberController에 메서드 추가

MemberController/java

package com.rptp.rptpSpringBoot.controller;

import com.rptp.rptpSpringBoot.model.MemberDTO;
import com.rptp.rptpSpringBoot.service.MemberService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;

@Controller
public class MemberController {

    private final MemberService memberService;

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

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

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

        memberService.join(memberDTO);

        return "redirect:/";
    }
}

PostMapping( url )

Post방식으로 해당 url에 접근했을 때 실행시키는 메서드

redirect: url

url 페이지로 이동

3. 회원 조회 기능 구현

3-1. MemberController에 메서드 추가

MemberController.java

package com.rptp.rptpSpringBoot.controller;

import com.rptp.rptpSpringBoot.model.MemberDTO;
import com.rptp.rptpSpringBoot.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 createJoinForm() {
        return "members/createJoinForm";
    }

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

        memberService.join(memberDTO);

        return "redirect:/";
    }

//=============add=============
    @GetMapping("/members")
    public String list(Model model) {
        List <MemberDTO> members = memberService.findMembers();
        model.addAttribute("members", members);

        return "members/memberList";
    }
//=============add=============
}

3-2.MemberList.html 생성

MemberList.html

<!DOCTYPE html>
<html lang="kr" xmlns:th="http://www.thymeleaf.org">
<head>
  <title>Hello Hello</title>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<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>