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DB없이 게시판 만들기 [express, ejs]
deploy : https://port-0-crud-sqlite-jocoding-53px25lbuimiei.gksl2.cloudtype.app/
깃허브저장소 : https://github.com/pyoja/crud_sqlite_jocoding
index.js
var express = require('express');
var app = express();
let comments = [];
// req.body 오는 값을 읽기 위해 적용
app.use(express.json())
app.use(express.urlencoded({ extended: true }))
// <%= %> 또는 <% %> 같이 html에서 js를 쓰기위한 ejs 라이브러리
app.set('view engine', 'ejs');
// index page
app.get('/', function(req, res) {
res.render('index', {comments: comments});
});
app.post('/create', function(req, res) {
console.log(req.body)
const {content} = req.body //form태그에 있는 name="content"
comments.push(content)
console.log(comments)
res.redirect('/')
});
app.listen(3000);
console.log('Server is listening on port 3000');index.ejs
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>내 페이지</title>
</head>
<body>
<h1>댓글 목록</h1>
<ul>
<% for (comment of comments) { %>
<li><%= comment %></li>
<% } %>
</ul>
<hr>
<form action="/create" method="post">
<input type="text" id="lname" name="content"><br><br>
<input type="submit" value="Submit">
</form>
</body>
</html>sqlite를 이용한 DB활용
https://sequelize.org/ 를 이용하여 SQL문법이 아닌 JS 문법으로 DB이용
index.ejs
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>내 페이지</title>
</head>
<body>
<h1>댓글 목록</h1>
<ul>
<% for (comment of comments) { %>
<li><%= comment.id %> <%= comment.content %></li>
<form action="/update/<%= comment.id %>" method="post">
<input type="text" name="content">
<input type="submit" value="수정하기">
</form>
<form action="/delete/<%= comment.id %>" method="post">
<input type="submit" value="삭제하기">
</form>
<% } %>
</ul>
<hr>
<form action="/create" method="post">
<input type="text" id="lname" name="content"><br><br>
<input type="submit" value="Submit">
</form>
</body>
</html>index.js
var express = require('express');
var app = express();
const { Sequelize, DataTypes } = require('sequelize');
const sequelize = new Sequelize({
dialect: 'sqlite',
storage: 'database.sqlite'
});
const Commnets = sequelize.define('Commnets', {
content: {
type: DataTypes.STRING,
allowNull: false
},
}, {
// Other model options go here
});
(async() => {
await Commnets.sync();
})();
// req.body 오는 값을 읽기 위해 적용
app.use(express.json())
app.use(express.urlencoded({ extended: true }))
// <%= %> 또는 <% %> 같이 html에서 js를 쓰기위한 ejs 라이브러리
app.set('view engine', 'ejs');
// index page
app.get('/', async function(req, res) {
const comments = await Commnets.findAll();
res.render('index', { comments: comments });
});
app.post('/create', async function(req, res) {
console.log(req.body)
const {content} = req.body //form태그에 있는 name="content"
await Commnets.create({ content : content });
res.redirect('/')
});
app.post('/update/:id', async function(req, res) {
const {content} = req.body
const {id} = req.params
await Commnets.update({ content: content }, {
where: {
id: id
}
});
res.redirect('/')
});
app.post('/delete/:id', async function(req, res) {
const {id} = req.params
await Commnets.destroy({
where: {
id: id
}
});
res.redirect('/')
});
app.listen(3000);
console.log('Server is listening on port 3000');728x90
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