使用 Pugjs、Node.js、MongoDB、Express 的反馈表
我们可以通过以下步骤使用 PugJs、NodeJS、MongoDB、Express 创建反馈表。反馈表从用户那里获取输入并将数据发送到服务器进行处理并将其相应地存储到数据库中。
第 1 步:在任意目录中创建一个名为feedback_form的文件夹。你可以取任何名字。
第 2 步:使用以下命令初始化 NodeJS 项目。
npm init –y
第 3 步:使用终端/cmd 中的以下命令安装所需的模块。
// Express middleware
npm install express --save
// Database setup
npm install mongoose --save
// pugjs for client site rendering
npm install pug --save
// OR you can install all command
// using single command
npm install express pug mongoose
第 4 步:目录结构将如下所示。
- node_modules:它包含我们所有安装的节点模块。
- static:它包含服务器的静态文件。
- 视图:它包含要呈现给客户端站点的 PugJS 文件。
- app.js:它包含运行此应用程序的服务器代码。
第 5 步:安装模块后,写下以下代码以创建反馈表。
文件名:app.js
Javascript
// Require express to make easy
// routing on server side.
const express = require("express");
// Creating express object
const app = express();
// Require path module
const path = require('path');
// Require pug template engine
const pug = require("pug");
// Require mongoose to use mongoDb
// in a easier way
const mongoose = require("mongoose");
// Define a port number
const port = 3000;
// Make a static route to use your
// static files in client side
app.use('/static', express.static('static'));
// Middleware for parsing
app.use(express.urlencoded());
// Define and use pug engine so also
// declare path on rendering
app.set('view engine', 'pug');
app.set('views', path.join(__dirname, 'views'));
// Database Connection
mongoose.connect(
"mongodb://localhost:27017/feedback",
{ useUnifiedTopology: true }
);
// Create schema
const feedSchecma = mongoose.Schema({
name: String,
email: String,
feed: String
});
// Making a modal on our already
// defined schema
const feedModal = mongoose
.model('feeds', feedSchecma);
// Handling get request
app.get('/', function (req, res) {
// Rendering your form
res.render('feedback_form');
});
// Handling data after submission of form
app.post("/feedback_form", function (req, res) {
const feedData = new feedModal({
name: req.body.name,
email: req.body.email,
feed: req.body.feedback
});
feedData.save()
.then(data => {
res.render('feedback_form',
{ msg: "Your feedback successfully saved." });
})
.catch(err => {
res.render('feedback_form',
{ msg: "Check Details." });
});
})
// Server setup
app.listen(port, () => {
console.log("server is running");
});
html
html(lang="en")
head
meta(charset="UTF-8")
meta(name="viewport", content=
"width=device-width, initial-scale=1.0")
title Feedback Form
//- we are directly use static files because
// already use static serve
link(rel="stylesheet", href="/static/style.css")
body
.form
h2 Feedback Form
if(msg)
small=msg
//- feedback_form POST route
form(action="/feedback_form",method="POST")
label(for="name") Enter Your Name
input#name(type="text", name="name")
label(for="email") Enter Your Email
input#email(type="email", name="email")
label(for="feedback") Enter Your Feedback
textarea#feedback(
name="feedback",
cols="30", rows="5"
)
button(type="submit") Submit
CSS
* {
margin: 0;
padding:0;
font-family: system-ui;
}
body {
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
}
.form {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
background: white;
padding: 1rem;
box-shadow: 0px 0px 6px 0px #808080b3;
border-radius: 10px;
}
.form form {
display: flex;
flex-direction: column;
justify-content: center;
}
.form form input, .form form textarea {
border: 1px solid gray;
border-radius: 5px;
padding: 5px 10px;
font-size: 20px;
outline: none;
}
.form form label {
margin-top: 7px;
}
.form button {
margin-top: 10px;
padding: 4px 10px;
font-size: 1rem;
border: 1px solid gray;
border-radius: 7px;
outline: none;
cursor: pointer;
}
文件名:feedback_form.pug
html
html(lang="en")
head
meta(charset="UTF-8")
meta(name="viewport", content=
"width=device-width, initial-scale=1.0")
title Feedback Form
//- we are directly use static files because
// already use static serve
link(rel="stylesheet", href="/static/style.css")
body
.form
h2 Feedback Form
if(msg)
small=msg
//- feedback_form POST route
form(action="/feedback_form",method="POST")
label(for="name") Enter Your Name
input#name(type="text", name="name")
label(for="email") Enter Your Email
input#email(type="email", name="email")
label(for="feedback") Enter Your Feedback
textarea#feedback(
name="feedback",
cols="30", rows="5"
)
button(type="submit") Submit
文件名:style.css
CSS
* {
margin: 0;
padding:0;
font-family: system-ui;
}
body {
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
}
.form {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
background: white;
padding: 1rem;
box-shadow: 0px 0px 6px 0px #808080b3;
border-radius: 10px;
}
.form form {
display: flex;
flex-direction: column;
justify-content: center;
}
.form form input, .form form textarea {
border: 1px solid gray;
border-radius: 5px;
padding: 5px 10px;
font-size: 20px;
outline: none;
}
.form form label {
margin-top: 7px;
}
.form button {
margin-top: 10px;
padding: 4px 10px;
font-size: 1rem;
border: 1px solid gray;
border-radius: 7px;
outline: none;
cursor: pointer;
}
第 6 步:使用以下命令运行app.js文件:
node app.js
设计预览:
填写表格:
提交后:
MongoDB 命令:使用这些命令查看您的数据库记录:
mongo // Start mongo shell
show dbs // See database cluster
use feedback // Use table name
show collections // See collections in cluster
db.feeds.find() // See records with table name
输出: