05 MVC의 역할과 실행 흐름
# MVC의 역할과 실행 흐름
## 미션
다음 URL요청에 대한 응답 페이지를 만드시오.
## 01:36 리뷰 - 요청에서 응답까지
#### ../controller/FirstController
```
package com.example.firstproject.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
@Controller
public class FirstController {
@GetMapping("/hi")
public String niceToMeetYou(Model model) {
model.addAttribute("username", "hongpark");
return "greetings";
}
}
```
#### ../templates/greetings.mustache
```
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<h1>{{username}}님, 반갑습니다.</h1>
</body>
</html>
```
## 04:57 응용 - 또 다른 요청에 응답하기
#### ../controller/FirstController
```
package com.example.firstproject.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
@Controller
public class FirstController {
@GetMapping("/hi")
public String niceToMeetYou(Model model) {
model.addAttribute("username", "hongpark");
return "greetings";
}
@GetMapping("/bye")
public String seeYouNext(Model model) {
model.addAttribute("nickname", "홍길동");
return "goodbye";
}
}
```
#### ../templates/goodbye.mustache
```
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<h1>{{nickname}}님, 다음에 또 만나요!</h1>
</body>
</html>
```
## 🔥 구글링 훈련하기
- 웹서버 요청 응답 과정
- MVC 패턴 장점