ํ์ ๊ด๋ฆฌ ์์ - ์น MVC ๊ฐ๋ฐ
1) ํ ์ปจํธ๋กค๋ฌ ๋ฐ ํ html
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";
}
}<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<body>
<div class="container">
<div>
<h1>Hello Spring</h1>
<p>ํ์ ๊ธฐ๋ฅ</p>
<p>
<a href="/members/new">ํ์ ๊ฐ์
</a>
<a href="/members">ํ์ ๋ชฉ๋ก</a>
</p>
</div>
</div> <!-- /container -->
</body>
</html>*์ปจํธ๋กค๋ฌ๊ฐ ์ ์ ํ์ผ๋ณด๋ค ์ฐ์ ์์๊ฐ ๋๋ค!
์์ฒญ์ด ์ค๋ฉด ๋จผ์ ์คํ๋ง ์ปจํ ์ด๋ ์์ ์๋ ์ปจํธ๋กค๋ฌ๋ถํฐ ๊ฒ์ํ๋ค. ์๋ ๊ฒฝ์ฐ static ํ์ผ ๊ฒ์
ํ์ ์น ๊ธฐ๋ฅ - ๋ฑ๋ก
์ปจํธ๋กค๋ฌ
@Controller
public class MemberController {
private final MemberService memberService;
@Autowired
public MemberController(MemberService memberService) {
this.memberService = memberService;
}
@GetMapping(value = "/members/new")
public String createForm() {
return "members/createMemberForm";
}
}html
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<body>
<div class="container">
<form action="/members/new" method="post"> <!-- post ์์ฒญ -->
<div class="form-group">
<label for="name">์ด๋ฆ</label>
<input type="text" id="name" name="name" placeholder="์ด๋ฆ์
์
๋ ฅํ์ธ์">
</div>
<button type="submit">๋ฑ๋ก</button>
</form>
</div> <!-- /container -->
</body>
</html>Form ๊ฐ์ฒด : ์น ํ๋ฉด์์ ์ ๋ ฅํ๋ ๋ฐ์ดํฐ๋ฅผ ๋ด๋ ๊ฐ์ฒด
package hello.hellospring.controller;
public class MemberForm {
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}Post ๋งคํ API
@PostMapping(value = "/members/new")
public String create(MemberForm form) {
Member member = new Member();
member.setName(form.getName());
memberService.join(member);
return "redirect:/";
}
ํ์ ์น ๊ธฐ๋ฅ - ์กฐํ
@GetMapping("/members")
public String list(Model model) {
List<Member> members = memberService.findMembers();
model.addAttribute("memebers", members);
return "members/memberList";
}model.addAttribute() ๋ฉ์๋ ์ ๋ฆฌ
1) (String attributeName, @Nullable Object attributeValue) : ์ด๋ฆ๊ณผ ๊ฐ์ ๋งค๊ฐ๋ณ์๋ก ์ฌ์ฉํ๋ ๊ฒฝ์ฐ
Add the supplied attribute under the supplied name.
attributeName – the name of the model attribute (never null) attributeValue – the model attribute value (can be null)
2) (Object attributeValue) : ๊ฐ๋ง ๋งค๊ฐ๋ณ์์ธ ๊ฒฝ์ฐ
Add the supplied attribute to this Map using a generated name.
Note: Empty Collections are not added to the model when using this method because we cannot correctly determine the true convention name. View code should check for null rather than for empty collections as is already done by JSTL tags.
attributeValue – the model attribute value (never null)
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<body>
<div class="container">
<div>
<table>
<thead>
<tr>
<th>#</th>
<th>์ด๋ฆ</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> <!-- /container -->
</body>
</html>
