MVC와 템플릿 엔진, API

개발이 좋아서/Spring이 좋아서

MVC와 템플릿 엔진, API

zoaseo 2022. 10. 6. 15:56

https://start.spring.io/

접속해서 세팅하기

압출풀고

intelliJ에서 열기

2) 코드

HelloController

package hello.hellospring.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class HelloController {
    @GetMapping("hello")
    public String hello(Model model) {
        model.addAttribute("data", "hello!!");
        return "hello";
    }
    @GetMapping("hello-mvc")
    public String helloMvc(@RequestParam(name="name", required = false)String name, Model model) {
        model.addAttribute("name", name);
        return "hello-template";
    }
    @GetMapping("hello-string")
    @ResponseBody
    public String helloString(@RequestParam("name")String name){
        return "hello " + name; //"hello spring"
    }

    @GetMapping("hello-api")
    @ResponseBody
    public Hello helloApi(@RequestParam("name")String name) {
        Hello hello = new Hello();
        hello.setName(name);
        return hello;
    }

    static class Hello {
        private String name;

        public String getName() {
            return name;

        }

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

hello-static.html

<!doctype html>
<html lang="en">
<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>
정적컨텐츠입니다
</body>
</html>

index.html

<!doctype html>
<html lang="en">
<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>
Hello
<a href="/hello">hello</a>
</body>
</html>

hello.html

<!doctype html>
<html xmlns:th="http://www.thymeleaf.org">
<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>
<p th:text="'안녕하세요. ' + ${data}">안녕하세요. 손님</p>
</body>
</html>

hello-template.html

<!doctype html>
<html xmlns:th="http://www.thymeleaf.org">
<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>
<p th:text="'hello ' + ${name}">hello! empty</p>
</body>
</html>