[스파르타코딩클럽 | 웹개발종합반] 4주차: 미니프로젝트1, 미니프로젝트2

*/스파르타코딩클럽 웹개발종합반

[스파르타코딩클럽 | 웹개발종합반] 4주차: 미니프로젝트1, 미니프로젝트2

sssbin 2021. 9. 13. 00:51

1. Flask

- Flask 기본 실행

from flask import Flask
app = Flask(__name__)

@app.route('/')
def home():
   return '나의 첫 서버!!!'

if __name__ == '__main__':
   app.run('0.0.0.0',port=5000,debug=True)

🌟 URL 나눠보기: @app.route('/') 부분 수정

→ url 별로 함수명이 같거나, route('/') 내의 주소가 같으면 안 된다!

from flask import Flask
app = Flask(__name__)

@app.route('/')
def home():
   return '나의 첫 서버!!!'

@app.route('/mypage')
def mypage():
   return 'mypage 입니다.'

if __name__ == '__main__':
   app.run('0.0.0.0',port=5000,debug=True)

🌟 버튼 생성 <button>

from flask import Flask
app = Flask(__name__)

@app.route('/')
def home():
   return '<button>나는 버튼이다</button>'

if __name__ == '__main__':
   app.run('0.0.0.0',port=5000,debug=True)

- 기본 폴더 구조

Flask 서버를 만들 때 프로젝트 폴더 안에
- static 폴더 (이미지, css파일)
- templates 폴더 (html파일)
- app.py 파일
(venv 무시하기!)

▶ html 파일 불러오기

1) app.py

from flask import Flask, render_template
app = Flask(__name__)

@app.route('/')
def home():
   return render_template('index.html')

if __name__ == '__main__':
   app.run('0.0.0.0',port=5000,debug=True)

2) index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    하나만 입력해 봅시다.
</body>
</html>

3) 결과

- GET, POST

GET
→ 통상적으로 데이터 조회(Read) 요청
→ 데이터 전달 : URL 뒤에 물음표를 붙여 key=value로 전달
→ 예: google.com?q=북극곰

POST
→ 통상적으로 데이터 생성(Create), 변경(Update), 삭제(Delete) 요청
→ 데이터 전달 : 바로 보이지 않는 HTML body에 key:value 형태로 전달

▶ GET 요청 API 코드

from flask import Flask, render_template, request, jsonify
app = Flask(__name__)

@app.route('/')
def home():
   return render_template('index.html')

@app.route('/test', methods=['GET'])
def test_get():
   title_receive = request.args.get('title_give')
   print(title_receive)
   return jsonify({'result':'success', 'msg': '이 요청은 GET!'})

if __name__ == '__main__':
   app.run('0.0.0.0',port=5000,debug=True)

▶ GET 요청 확인 Ajax 코드

$.ajax({
    type: "GET",
    url: "/test?title_give=봄날은간다",
    data: {},
    success: function(response){
       console.log(response)
    }
  })

▶ POST 요청 API 코드

from flask import Flask, render_template, request, jsonify
app = Flask(__name__)

@app.route('/')
def home():
   return render_template('index.html')

@app.route('/test', methods=['POST'])
def test_post():
   title_receive = request.form['title_give']
   print(title_receive)
   return jsonify({'result':'success', 'msg': '이 요청은 POST!'})

if __name__ == '__main__':
   app.run('0.0.0.0',port=5000,debug=True)

▶ POST 요청 확인 Ajax 코드

$.ajax({
    type: "POST",
    url: "/test",
    data: { title_give:'봄날은간다' },
    success: function(response){
       console.log(response)
    }
  })

2. 모두의책리뷰

✔️ flask, pymongo 설치하기

1) app.py

from flask import Flask, render_template, jsonify, request
app = Flask(__name__)

from pymongo import MongoClient
client = MongoClient('localhost', 27017)
db = client.dbsparta

## HTML을 주는 부분
@app.route('/')
def home():
    return render_template('index.html')

## API 역할을 하는 부분
@app.route('/review', methods=['POST'])
def write_review():
    title_receive = request.form['title_give']
    author_receive = request.form['author_give']
    review_receive = request.form['review_give']

    doc = {
        'title':title_receive,
        'author':author_receive,
        'review':review_receive
    }

    db.bookreview.insert_one(doc)

    return jsonify({'msg': '저장 완료!'})


@app.route('/review', methods=['GET'])
def read_reviews():
    reviews = list(db.bookreview.find({},{'_id':False}))
    return jsonify({'all_reviews': reviews})


if __name__ == '__main__':
    app.run('0.0.0.0', port=5000, debug=True)

write_review() : 클라이언트로부터 받은 제목, 저자, 리뷰 값을 데이터베이스에 저장

2) index.html

<!DOCTYPE html>
<html lang="ko">

    <head>
        <!-- Webpage Title -->
        <title>모두의 책리뷰 | 스파르타코딩클럽</title>

        <!-- Required meta tags -->
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

        <!-- Bootstrap CSS -->
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
              integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm"
              crossorigin="anonymous">

        <!-- JS -->
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"
                integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q"
                crossorigin="anonymous"></script>

        <!-- 구글폰트 -->
        <link href="https://fonts.googleapis.com/css?family=Do+Hyeon&display=swap" rel="stylesheet">

        <script type="text/javascript">

            $(document).ready(function () {
                showReview();
            });

            function makeReview() {
                let title = $('#title').val()
                let author = $('#author').val()
                let review = $('#bookReview').val()

                $.ajax({
                    type: "POST",
                    url: "/review",
                    data: { title_give:title, author_give:author, review_give:review },
                    success: function (response) {
                        alert(response["msg"]);
window.location.reload();
                    }
                })
            }

            function showReview() {
                $.ajax({
                    type: "GET",
                    url: "/review",
                    data: {},
                    success: function (response) {
                        let reviews = response['all_reviews']

                        for (let i=0; i<reviews.length; i++) {
                            let title = reviews[i]['title']
                            let author = reviews[i]['author']
                            let review = reviews[i]['review']

                            let temp_html = `<tr>
                                                <td>${title}</td>
                                                <td>${author}</td>
                                                <td>${review}</td>
                                            </tr>`

                            $('#reviews-box').append(temp_html)
                        }
                    }
                })
            }
        </script>

        <style type="text/css">
            * {
                font-family: "Do Hyeon", sans-serif;
            }

            h1,
            h5 {
                display: inline;
            }

            .info {
                margin-top: 20px;
                margin-bottom: 20px;
            }

            .review {
                text-align: center;
            }

            .reviews {
                margin-top: 100px;
            }
        </style>
    </head>

    <body>
        <div class="container">
            <img src="https://previews.123rf.com/images/maxxyustas/maxxyustas1511/maxxyustas151100002/47858355-education-concept-books-and-textbooks-on-the-bookshelf-3d.jpg"
                 class="img-fluid" alt="Responsive image">
            <div class="info">
                <h1>읽은 책에 대해 말씀해주세요.</h1>
                <p>다른 사람을 위해 리뷰를 남겨주세요! 다 같이 좋은 책을 읽는다면 다 함께 행복해질 수 있지 않을까요?</p>
                <div class="input-group mb-3">
                    <div class="input-group-prepend">
                        <span class="input-group-text">제목</span>
                    </div>
                    <input type="text" class="form-control" id="title">
                </div>
                <div class="input-group mb-3">
                    <div class="input-group-prepend">
                        <span class="input-group-text">저자</span>
                    </div>
                    <input type="text" class="form-control" id="author">
                </div>
                <div class="input-group mb-3">
                    <div class="input-group-prepend">
                        <span class="input-group-text">리뷰</span>
                    </div>
                    <textarea class="form-control" id="bookReview"
                              cols="30"
                              rows="5" placeholder="140자까지 입력할 수 있습니다."></textarea>
                </div>
                <div class="review">
                    <button onclick="makeReview()" type="button" class="btn btn-primary">리뷰 작성하기</button>
                </div>
            </div>
            <div class="reviews">
                <table class="table">
                    <thead>
                    <tr>
                        <th scope="col">제목</th>
                        <th scope="col">저자</th>
                        <th scope="col">리뷰</th>
                    </tr>
                    </thead>
                    <tbody id="reviews-box">
                    </tbody>
                </table>
            </div>
        </div>
    </body>

</html>

makeReview() : 제목, 저자, 리뷰 값 받아서 서버로 보냄

showReview() : 서버로부터 받은 리뷰 값들을 제목, 저자, 리뷰 값으로 나눠서 html에 붙임

3. 나홀로메모장

✔️ flask, pymongo, requests, bs4 설치하기

✔️ meta 태그: <head></head> 부분에 들어가는, 눈으로 보이는 것(body) 외에 사이트의 속성을 설명해주는 태그들

▶ 크롤링하기 (meta_prac.py)

import requests
from bs4 import BeautifulSoup

url = 'https://movie.naver.com/movie/bi/mi/basic.nhn?code=171539'

headers = {'User-Agent' : 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36'}
data = requests.get(url,headers=headers)

soup = BeautifulSoup(data.text, 'html.parser')

title = soup.select_one('meta[property="og:title"]')['content']
image = soup.select_one('meta[property="og:image"]')['content']
desc = soup.select_one('meta[property="og:description"]')['content']

print(title, image, desc)

1) app.py

from flask import Flask, render_template, jsonify, request
app = Flask(__name__)

import requests
from bs4 import BeautifulSoup

from pymongo import MongoClient
client = MongoClient('localhost', 27017)
db = client.dbsparta

## HTML을 주는 부분
@app.route('/')
def home():
   return render_template('index.html')

@app.route('/memo', methods=['GET'])
def listing():
    articles = list(db.articles.find({},{'_id':False}))
    return jsonify({'all_articles':articles})

## API 역할을 하는 부분
@app.route('/memo', methods=['POST'])
def saving():
    url_receive = request.form['url_give']
    comment_receive = request.form['comment_give']

    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36'}
    data = requests.get(url_receive, headers=headers)

    soup = BeautifulSoup(data.text, 'html.parser')

    title = soup.select_one('meta[property="og:title"]')['content']
    image = soup.select_one('meta[property="og:image"]')['content']
    desc = soup.select_one('meta[property="og:description"]')['content']

    doc = {
        'title':title,
        'image':image,
        'desc':desc,
        'url':url_receive,
        'comment':comment_receive
    }

    db.articles.insert_one(doc)

    return jsonify({'msg':'저장이 완료되었습니다!'})

if __name__ == '__main__':
   app.run('0.0.0.0',port=5000,debug=True)

2) index.html

<!Doctype html>
<html lang="ko">

    <head>
        <!-- Required meta tags -->
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

        <!-- Bootstrap CSS -->
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
              integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm"
              crossorigin="anonymous">

        <!-- JS -->
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"
                integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q"
                crossorigin="anonymous"></script>

        <!-- 구글폰트 -->
        <link href="https://fonts.googleapis.com/css?family=Stylish&display=swap" rel="stylesheet">


        <title>스파르타코딩클럽 | 나홀로 메모장</title>

        <!-- style -->
        <style type="text/css">
            * {
                font-family: "Stylish", sans-serif;
            }

            .wrap {
                width: 900px;
                margin: auto;
            }

            .comment {
                color: blue;
                font-weight: bold;
            }

            #post-box {
                width: 500px;
                margin: 20px auto;
                padding: 50px;
                border: black solid;
                border-radius: 5px;
            }
        </style>
        <script>
            $(document).ready(function () {
                showArticles();
            });

            function openClose() {
                if ($("#post-box").css("display") == "block") {
                    $("#post-box").hide();
                    $("#btn-post-box").text("포스팅 박스 열기");
                } else {
                    $("#post-box").show();
                    $("#btn-post-box").text("포스팅 박스 닫기");
                }
            }

            function postArticle() {
                let url = $('#post-url').val()
                let comment = $('#post-comment').val()

                $.ajax({
                    type: "POST",
                    url: "/memo",
                    data: {url_give:url, comment_give:comment},
                    success: function (response) { // 성공하면
                        alert(response["msg"]);
window.location.reload();
                    }
                })
            }

            function showArticles() {
                $.ajax({
                    type: "GET",
                    url: "/memo",
                    data: {},
                    success: function (response) {
                        let articles = response['all_articles']

                        for (let i=0; i<articles.length; i++) {
                            let title = articles[i]['title']
                            let image = articles[i]['image']
                            let url = articles[i]['url']
                            let desc = articles[i]['desc']
                            let comment = articles[i]['comment']

                            let temp_html=`<div class="card">
                                                <img class="card-img-top"
                                                     src="${image}"
                                                     alt="Card image cap">
                                                <div class="card-body">
                                                    <a target="_blank" href="${url}" class="card-title"> ${title} </a>
                                                    <p class="card-text"> ${desc} </p>
                                                    <p class="card-text comment"> ${comment} </p>
                                                </div>
                                            </div>`

                            $('#cards-box').append(temp_html)
                        }
                    }
                })
            }
        </script>

    </head>

    <body>
        <div class="wrap">
            <div class="jumbotron">
                <h1 class="display-4">나홀로 링크 메모장!</h1>
                <p class="lead">중요한 링크를 저장해두고, 나중에 볼 수 있는 공간입니다</p>
                <hr class="my-4">
                <p class="lead">
                    <button onclick="openClose()" id="btn-post-box" type="button" class="btn btn-primary">포스팅 박스 열기
                    </button>
                </p>
            </div>
            <div id="post-box" class="form-post" style="display:none">
                <div>
                    <div class="form-group">
                        <label for="post-url">아티클 URL</label>
                        <input id="post-url" class="form-control" placeholder="">
                    </div>
                    <div class="form-group">
                        <label for="post-comment">간단 코멘트</label>
                        <textarea id="post-comment" class="form-control" rows="2"></textarea>
                    </div>
                    <button type="button" class="btn btn-primary" onclick="postArticle()">기사저장</button>
                </div>
            </div>
            <div id="cards-box" class="card-columns">
            </div>
        </div>
    </body>

</html>

4. 숙제: 원페이지 쇼핑몰에 주문 목록 붙이기

1) app.py

from flask import Flask, render_template, jsonify, request

app = Flask(__name__)

from pymongo import MongoClient

client = MongoClient('localhost', 27017)
db = client.dbhomework


## HTML 화면 보여주기
@app.route('/')
def homework():
    return render_template('index.html')


# 주문하기(POST) API
@app.route('/order', methods=['POST'])
def save_order():
    name_receive = request.form['name_give']
    number_receive = request.form['number_give']
    address_receive = request.form['address_give']
    phone_receive = request.form['phone_give']

    doc = {
        'name':name_receive,
        'number':number_receive,
        'address':address_receive,
        'phone':phone_receive
    }
    db.order.insert_one(doc)

    return jsonify({'msg': '주문이 완료되었습니다!'})


# 주문 목록보기(Read) API
@app.route('/order', methods=['GET'])
def view_orders():
    orders = list(db.order.find({},{'_id':False}))
    return jsonify({'orders': orders})


if __name__ == '__main__':
    app.run('0.0.0.0', port=5000, debug=True)

2) index.html

<!doctype html>
<html lang="en">

<head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
        integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">

    <!-- Optional JavaScript -->
    <!-- jQuery first, then Popper.js, then Bootstrap JS -->
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"
        integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q"
        crossorigin="anonymous"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"
        integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl"
        crossorigin="anonymous"></script>

    <title>숙제4 | 쇼핑몰에 주문자 목록 붙이기</title>

    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Song+Myung&family=Stylish&display=swap" rel="stylesheet">

    <style>
        * {
            font-family: 'Song Myung', serif;
            font-family: 'Stylish', sans-serif;
        }

        .photo {
            text-align : center;
        }

        .content_title {
            padding : 20px 300px 0px 300px;
        }

        .content_rate {
            padding : 20px 300px 0px 300px;
            color : blue;
        }

        .content_order {
            padding : 20px 500px 0px 300px;
        }

        .title {
            font-size : 50px;
            font-weight : bold;
        }

        .size {
            width : 200px;
            height : 20px;
            float : right;
        }

        .button {
            width : 200px;
            margin : auto;
            display : block;
        }

        .orders {
            margin-top: 20px;
            padding : 20px 300px 0px 300px;
            text-align: center;
        }
    </style>

    <script>
        $(document).ready(function () {
            showOrders();
        });

        function makeOrder() {
            let name = $('#name').val()
            let number = $('#number').val()
            let address = $('#address').val()
            let phone = $('#phone').val()

            $.ajax({
                type: "POST",
                url: "/order",
                data: {name_give:name, number_give:number, address_give:address, phone_give:phone},
                success: function (response) {
                    alert(response["msg"]);
                    window.location.reload();
                }
            })
        }

        function showOrders() {
            $.ajax({
                type: "GET",
                url: "/order",
                data: {},
                success: function (response) {
                    let orders = response['orders']

                    for (let i = 0; i < orders.length; i++) {
                        let name = orders[i]['name']
                        let number = orders[i]['number']
                        let address = orders[i]['address']
                        let phone = orders[i]['phone']

                        let temp_html = `<tr>
                                             <td>${name}</td>
                                             <td>${number}</td>
                                             <td>${address}</td>
                                             <td>${phone}</td>
                                         </tr>`

                        $('#orders-box').append(temp_html)
                    }
                }
            })
        }

        function q1() {
            $.ajax({
                type: "GET",
                url: "http://spartacodingclub.shop/sparta_api/rate",
                data: {},
                success: function (response) {
                    let rate = response['rate']
                    $("#rate").append(rate)
                }
            })
        }

        $(document).ready(function () {
            q1();
        })

    </script>
</head>

<body>
    <div>
        <div class="photo">
            <img src="http://swiki.cafe24.com/web/product/big/201808/653369f1193cfcf3d01894d870a6cd59.jpg" width="360px" height="320px"/>
        </div>

        <div class="content_title">
            <div>
                <span class="title"> 상품제목 </span> 가격: 10,000원 / 개
            </div>

            <div>
                집안을 밝게 비춰주는 형광등이 꺼지고, 방 안에 어둠이 내릴 때, 은은한 빛으로 따뜻하게 공간을 감싸주는 무드등 하나 만으로 집안 분위기가 바뀔 수 있다.
            </div>
        </div>

        <div class="content_rate" id="rate"> 달러-원 환율: </div>

        <div class="content_order">
            <div class="title"> 주문하기 </div>

            <div>
                <label for="name"> 주문자 성함: </label>
                <input type="text" id="name" class="size" />
            </div>

            <div>
                <label for="number"> 수량: </label>
                <input class="size" list="datalistOptions" id="number" placeholder="수량을 입력하세요">
                <datalist id="datalistOptions" >
                    <option value="1">
                    <option value="2">
                    <option value="3">
                    <option value="4">
                    <option value="5">
                </datalist>
            </div>

            <div>
                <label for="address"> 주소: </label>
                <input type="text" id="address" class="size" />
            </div>

            <div>
                <label for="phone"> 전화번호: </label>
                <input type="tel" id="phone" class="size" />
            </div>
        </div>

        <div>
            <button onclick="makeOrder()" class="button"> 주문하기 </button>
        </div>

        <div class="orders">
                <table class="table">
                    <thead>
                        <tr>
                            <th scope="col">이름</th>
                            <th scope="col">수량</th>
                            <th scope="col">주소</th>
                            <th scope="col">전화번호</th>
                        </tr>
                    </thead>
                    <tbody id="orders-box">
                    </tbody>
                </table>
            </div>
    </div>

</body>

</html>

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