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MishaBagger
2023-11-08 13:41:29 +03:00
parent 797df1e4fa
commit 0956275ec4
24 changed files with 4184 additions and 0 deletions
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117
1/app.js Normal file
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var express = require('express');
var bodyParser = require('body-parser');
var fs = require('fs');
var app = express();
var jsonParser = bodyParser.json();
app.use(express.static(__dirname + '/public'));
// получение списка данных
app.get('/api/users', function (req, res) {
var content = fs.readFileSync('list.json', 'utf8');
var list = JSON.parse(content);
res.send(list);
});
// получение одного пользователя по id
app.get('/api/users/:id', function (req, res) {
var id = req.params.id; // получаем id
var content = fs.readFileSync('list.json', 'utf8');
var list = JSON.parse(content);
var user = null;
// находим в массиве пользователя по id
for (var i = 0; i < users.length; i++) {
if (users[i].id == id) {
user = users[i];
break;
}
}
// отправляем пользователя
if (user) {
res.send(user);
} else {
res.status(404).send();
}
});
// получение отправленных данных
app.post('/api/users', jsonParser, function (req, res) {
if (!req.body) return res.sendStatus(400);
var userName = req.body.name;
var userDate = req.body.date;
var user = { name: userName, date: userDate };
var data = fs.readFileSync('users.json', 'utf8');
var users = JSON.parse(data);
// находим максимальный id
var id = Math.max.apply(
Math,
users.map(function (o) {
return o.id;
})
);
// увеличиваем его на единицу
user.id = id + 1;
// добавляем пользователя в массив
users.push(user);
var data = JSON.stringify(users);
// перезаписываем файл с новыми данными
fs.writeFileSync('users.json', data);
res.send(user);
});
// удаление пользователя по id
app.delete('/api/users/:id', function (req, res) {
var id = req.params.id;
var data = fs.readFileSync('users.json', 'utf8');
var users = JSON.parse(data);
var index = -1;
// находим индекс пользователя в массиве
for (var i = 0; i < users.length; i++) {
if (users[i].id == id) {
index = i;
break;
}
}
if (index > -1) {
// удаляем пользователя из массива по индексу
var user = users.splice(index, 1)[0];
var data = JSON.stringify(users);
fs.writeFileSync('users.json', data);
// отправляем удаленного пользователя
res.send(user);
} else {
res.status(404).send();
}
});
// изменение пользователя
app.put('/api/users', jsonParser, function (req, res) {
if (!req.body) return res.sendStatus(400);
var userId = req.body.id;
var userName = req.body.name;
var userDate = req.body.date;
var data = fs.readFileSync('users.json', 'utf8');
var users = JSON.parse(data);
var user;
for (var i = 0; i < users.length; i++) {
if (users[i].id == userId) {
user = users[i];
break;
}
}
// изменяем данные у пользователя
if (user) {
user.date = user;
user.name = userName;
var data = JSON.stringify(users);
fs.writeFileSync('users.json', data);
res.send(user);
} else {
res.status(404).send(user);
}
});
app.listen(3000, function () {
console.log('Сервер ожидает подключения...');
});

694
1/package-lock.json generated Normal file
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@@ -0,0 +1,694 @@
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8
1/package.json Normal file
View File

@@ -0,0 +1,8 @@
{
"name": "1",
"version": "1.0.0",
"dependencies": {
"body-parser": "^1.16.0",
"express": "^4.18.2"
}
}

208
1/public/index.html Normal file
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@@ -0,0 +1,208 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta
name="viewport"
content="width=device-width"
/>
<title>Список пользователей</title>
<link
href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
rel="stylesheet"
/>
<script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
</head>
<body>
<h2>Список дел</h2>
<form name="userForm">
<input type="hidden" name="id" value="0" />
<div class="form-group">
<label for="name">Название:</label>
<input class="form-control" name="name" />
</div>
<div class="form-group">
<label for="date">Дата:</label>
<input class="form-control" name="date" />
</div>
<div class="panel-body">
<button
type="submit"
class="btn btn-sm btn-primary"
>
Добавить
</button>
<a id="reset" class="btn btn-sm btn-primary"
>Стереть</a
>
</div>
</form>
<table
class="table table-condensed table-striped table-bordered"
>
<thead>
<tr>
<th>Id</th>
<th>Название</th>
<th>Дата</th>
<th></th>
</tr>
</thead>
<tbody></tbody>
</table>
<script>
// Получение всех пользователей
function GetUsers() {
$.ajax({
url: '/api/users',
type: 'GET',
contentType: 'application/json',
success: function (users) {
var rows = '';
$.each(users, function (
index,
user
) {
// добавляем полученные элементы в таблицу
rows += row(user);
});
$('table tbody').append(rows);
},
});
}
// Получение одного пользователя
function GetUser(id) {
$.ajax({
url: '/api/users/' + id,
type: 'GET',
contentType: 'application/json',
success: function (user) {
var form =
document.forms['userForm'];
form.elements['id'].value = user.id;
form.elements['name'].value =
user.name;
form.elements['date'].value =
user.date;
},
});
}
// Добавление пользователя
function CreateUser(userName, userDate) {
$.ajax({
url: 'api/users',
contentType: 'application/json',
method: 'POST',
data: JSON.stringify({
name: userName,
date: userDate,
}),
success: function (user) {
reset();
$('table tbody').append(row(user));
},
});
}
// Изменение пользователя
function EditUser(userId, userName, userDate) {
$.ajax({
url: 'api/users',
contentType: 'application/json',
method: 'PUT',
data: JSON.stringify({
id: userId,
name: userName,
date: userDate,
}),
success: function (user) {
reset();
$(
"tr[data-rowid='" +
user.id +
"']"
).replaceWith(row(user));
},
});
}
// сброс формы
function reset() {
var form = document.forms['userForm'];
form.reset();
form.elements['id'].value = 0;
}
// Удаление пользователя
function DeleteUser(id) {
$.ajax({
url: 'api/users/' + id,
contentType: 'application/json',
method: 'DELETE',
success: function (user) {
console.log(user);
$(
"tr[data-rowid='" +
user.id +
"']"
).remove();
},
});
}
// создание строки для таблицы
var row = function (user) {
return (
"<tr data-rowid='" +
user.id +
"'><td>" +
user.id +
'</td>' +
'<td>' +
user.name +
'</td> <td>' +
user.date +
'</td>' +
"<td><a class='editLink' data-id='" +
user.id +
"'>Изменить</a> | " +
"<a class='removeLink' data-id='" +
user.id +
"'>Удалить</a></td></tr>"
);
};
// сброс значений формы
$('#reset').click(function (e) {
e.preventDefault();
reset();
});
// отправка формы
$('form').submit(function (e) {
e.preventDefault();
var id = this.elements['id'].value;
var name = this.elements['name'].value;
var date = this.elements['date'].value;
if (id == 0) CreateUser(name, date);
else EditUser(id, name, date);
});
// нажимаем на ссылку Изменить
$('body').on('click', '.editLink', function () {
var id = $(this).data('id');
GetUser(id);
});
// нажимаем на ссылку Удалить
$('body').on(
'click',
'.removeLink',
function () {
var id = $(this).data('id');
DeleteUser(id);
}
);
// загрузка пользователей
GetUsers();
</script>
</body>
</html>

1
1/users.json Normal file
View File

@@ -0,0 +1 @@
[{"id":2,"name":"Помыть посуду","date":"wadawdwda1"},{"id":3,"name":"Сходить за покупками","date":"23.10.23"},{"name":"Надо вынести шкаф","date":"01.10.11","id":4},{"name":" fdas","date":"11.11.23","id":5}]

66
2/app.js Normal file
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@@ -0,0 +1,66 @@
const express = require("express");
const multer = require("multer");
const ejs = require("ejs");
const path = require("path");
const storage = multer.diskStorage({
destination: "./public/uploads/",
filename: function(req, file, callback) {
callback(
null,
file.fieldname + "-" + Date.now() + path.extname(file.originalname)
);
}
});
const upload = multer({
storage,
limits: { fileSize: 1000000 },
fileFilter: function(req, file, cb) {
checkFileType(file, cb);
}
}).single("myImage");
function checkFileType(file, cb) {
const filetypes = /jpeg|jpg|png|svg/;
const extname = filetypes.test(path.extname(file.originalname).toLowerCase());
const mimetype = filetypes.test(file.mimetype);
if (mimetype && extname) {
return cb(null, true);
} else {
cb(new Error(`Только изображения формата - png, jpg, jpeg`));
}
}
const app = express();
const port = 3000 || process.env.PATH;
app.set("view engine", "ejs");
app.use(express.static("./public"));
app.get("/", (req, res) => {
res.render("index");
});
app.post("/upload", (req, res) => {
upload(req, res, err => {
if (err) {
res.render("index", { msg: err.message });
} else {
if (req.file == undefined) {
res.render("index", { msg: "Пожалуйста, выберите файл для загрузки" });
} else {
res.render("index", {
msg: "Файл обновлён!",
file: `uploads/${req.file.filename}`
});
}
}
});
});
app.listen(port, () => {
console.log(`Старт сайта ${port}`);
});

33
2/index.html Normal file
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@@ -0,0 +1,33 @@
<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<link
rel="stylesheet"
href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/css/materialize.min.css"
/>
<title>Бабубэ</title>
</head>
<body>
<div class="container">
<h1>Загрузите файл</h1>
<form action="/upload" method="POST">
<div class="file-field input-field">
<div class="btn grey"><span>Файл</span> <input type="myImage" /></div>
<div class="file-path-wrapper">
<input class="file-path validate" type="text" />
</div>
</div>
<button type="submit" class="btn"></button>
</form>
</div>
<script
src="https://code.jquery.com/jquery-3.4.0.min.js"
integrity="sha256-BJeo0qm959uMBGb65z40ejJYGSgR7REI4+CW1fNKwOg="
crossorigin="anonymous"
></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js"></script>
</body>
</html>

867
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@@ -0,0 +1,867 @@
{
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26
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{
"name": "node-multer-uploader",
"version": "1.0.0",
"description": "",
"main": "app.js",
"scripts": {
"start": "node app",
"dev": "nodemon app"
},
"repository": {
"type": "git",
"url": "git+https://github.com/charlesmartinreed/node-multer-image-uploader.git"
},
"keywords": [],
"author": "",
"license": "ISC",
"bugs": {
"url": "https://github.com/charlesmartinreed/node-multer-image-uploader/issues"
},
"homepage": "https://github.com/charlesmartinreed/node-multer-image-uploader#readme",
"dependencies": {
"ejs": "^2.6.1",
"express": "^4.18.2",
"multer": "^1.4.1"
}
}

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39
2/views/index.ejs Normal file
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<link
rel="stylesheet"
href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/css/materialize.min.css"
/>
<title>бабубэ</title>
</head>
<body>
<div class="container">
<h1>Файл загрузки</h1>
<%= typeof msg !== 'undefined' ? msg : '' %>
<form action="/upload" method="POST" enctype="multipart/form-data">
<div class="file-field input-field">
<div class="btn grey">
<span>Файл</span>
<input name="myImage" type="file" /></div>
<div class="file-path-wrapper">
<input class="file-path validate" type="text" />
</div>
</div>
<button type="submit" class="btn">Go</button>
</form>
<br />
<img src="<%= typeof file !== 'undefined' ? file : '' %>" class="responsive-img">
</div>
<script
src="https://code.jquery.com/jquery-3.4.0.min.js"
integrity="sha256-BJeo0qm959uMBGb65z40ejJYGSgR7REI4+CW1fNKwOg="
crossorigin="anonymous"
></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js"></script>
</body>
</html>

16
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const fs = require("fs");
const path = require("path");
const directoryPath = path.join(__dirname, "..", "uploads");
const displayImages = (req, res) => {
fs.readdir(directoryPath, function (err, files) {
if (err) {
return console.log("Unable to scan directory: " + err);
}
const imageUrls = files.map((file) => `/uploads/${file}`);
res.status(200).json(imageUrls);
});
};
module.exports = { displayImages };

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21/controller/uploadController.js Normal file
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@@ -0,0 +1,29 @@
const multer = require("multer");
const storage = multer.diskStorage({
destination: function (req, file, cb) {
return cb(null, "./uploads");
},
filename: function (req, file, cb) {
return cb(null, `${Date.now()}-${file.originalname}`);
},
});
const upload = multer({ storage: storage });
const uploadImage = (req, res, next) => {
if (!req.file)
return res.status(400).send(`No file Uploaded <br>
<button onclick="window.location.href='/images'">Show Images</button>
<button onclick="window.location.href='/'">Back to Home</button>
`);
console.log(req.file);
res.send(
`Uploaded <br>
<button onclick="window.location.href='/images'">Show Images</button>
<button onclick="window.location.href='/'">Back to Home</button>
`
);
};
module.exports = { upload, uploadImage };

26
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const express = require("express");
const app = express();
require("dotenv").config();
const rootRoute = require("./routes/root");
const uploadRoute = require("./routes/api/uploadRoute");
const imageRoute = require("./routes/api/imageRoute");
const images = require("./routes/images");
const PORT = process.env.PORT || 3500;
app.use(express.urlencoded({ extended: false }));
app.use("/", rootRoute);
app.use("/upload", uploadRoute);
app.use("/imagelist", imageRoute);
app.use("/images", images);
app.use("/uploads", express.static("uploads"));
app.all("*", (req, res) => {
res.status(404).send("Error 404! Not Found");
});
app.listen(PORT, () => {
console.log(`Connected to port ${PORT}`);
});

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{
"name": "image-uploader",
"version": "1.0.0",
"description": "Image uploader using multer in node.js",
"main": "index.js",
"scripts": {
"start": "nodemon"
},
"keywords": [
"node.js",
"express",
"multer"
],
"author": "",
"license": "ISC",
"dependencies": {
"dotenv": "^16.0.3",
"express": "^4.18.2",
"multer": "^1.4.5-lts.1"
},
"devDependencies": {
"nodemon": "^2.0.22"
}
}

7
21/routes/api/imageRoute.js Normal file
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const express = require("express");
const router = express.Router();
const { displayImages } = require("../../controller/imageController");
router.get("/", displayImages);
module.exports = router;

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const express = require("express");
const router = express.Router();
const { upload, uploadImage } = require("../../controller/uploadController");
router.post("/", upload.single("uploadImg"), uploadImage);
module.exports = router;

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21/routes/images.js Normal file
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const express = require("express");
const router = express.Router();
const path = require("path");
router.get("/", (req, res) => {
res.sendFile(path.join(__dirname, "..", "views", "images.html"));
});
module.exports = router;

9
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const express = require("express");
const router = express.Router();
const path = require("path");
router.get("/", (req, res) => {
res.sendFile(path.join(__dirname, "..", "views", "index.html"));
});
module.exports = router;

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<!DOCTYPE html>
<html>
<head>
<script>
fetch("/imagelist")
.then((response) => response.json())
.then((imageUrls) => {
const container = document.getElementById("image-container");
imageUrls.forEach((url) => {
const img = document.createElement("img");
img.src = url;
img.width = "200";
img.height = "200";
container.appendChild(img);
const br = document.createElement("br");
container.appendChild(br);
});
});
</script>
</head>
<body>
<h1>Image Gallery</h1>
<div id="image-container"></div>
<button onclick="window.location.href='/'">Back to Home</button>
</body>
</html>

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<!DOCTYPE html>
<html>
<head>
<title>Image Uploader</title>
</head>
<body>
<form method="POST" action="/upload" enctype="multipart/form-data">
<input type="file" name="uploadImg" />
<button type="submit">Upload</button>
</form>
<br />
<button onclick="window.location.href='/images'">Show Images</button>
</body>
</html>