How to use Python to build the message push function of CMS system-PHP Tutorial-php.cn

How to use Python to build the message push function of CMS system

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Release： 2023-08-05 19:56:02

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How to use Python to build the message push function of the CMS system

Introduction:
CMS system (content management system) has become the preferred tool for many companies and individuals to build and maintain websites. In order to provide a better user experience, message push function has become an important part of modern websites. In this article, we will introduce how to write a basic CMS system using Python and add message push functionality.

Step 1: Install Flask
Flask is a lightweight Python web framework suitable for building small and medium-sized web applications. You can install Flask using the following command:

pip install flask

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Step 2: Build the Flask application
Create a Python script called app.py in the file and import Flask and other required libraries:

from flask import Flask

app = Flask(__name__)

@app.route('/')
def index():
    return 'Hello, CMS system!'
    
if __name__ == '__main__':
    app.run()

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This simple Flask application will return the "Hello, CMS system!" message on the root route. You can start this application using the following command:

python app.py

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Step 3: Add push message function
To implement message push function, we will use the Flask-SocketIO library. Use the following command to install the library:

pip install flask-socketio

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Then add the following code in the app.py file:

from flask import Flask, render_template
from flask_socketio import SocketIO

app = Flask(__name__)
socketio = SocketIO(app)

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

@socketio.on('message')
def handle_message(message):
    print('Received message: ' + message)
    socketio.send('Echo: ' + message)

if __name__ == '__main__':
    socketio.run(app)

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Create a new template file named index.html in the application and add the following Code added to index.html:

<!DOCTYPE html>
<html>
<head>
    <title>CMS消息推送系统</title>
</head>
<body>
    <h1>欢迎来到CMS消息推送系统</h1>
    <input type="text" id="message-input">
    <button id="send-button">发送消息</button>

    <script src="//cdnjs.cloudflare.com/ajax/libs/socket.io/2.3.0/socket.io.js"></script>
    <script type="text/javascript">
        var socket = io();

        document.getElementById('send-button').onclick = function() {
            var message = document.getElementById('message-input').value;
            document.getElementById('message-input').value = '';
            socket.send(message);
        };

        socket.on('message', function(message) {
            var newMessage = document.createElement('p');
            newMessage.innerHTML = message;
            document.body.appendChild(newMessage);
        });
    </script>
</body>
</html>

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This application will render the index.html template on the /index route and provide basic functionality for each message to be sent and received. When the user enters a message in the input box and clicks the "Send Message" button, the message will be sent to the server through SocketIO, then printed to the terminal and sent back to the browser, and finally displayed on the web page.

Step 4: Test and Use
Now you can use your browser to visit http://localhost:5000/ and you should see a simple web page. Enter a message in the input box and click the "Send Message" button. You should see the message you sent on the web page and the terminal will display a message similar to "Received message: Hello!"

Conclusion:
This article introduces how to use Python and Flask to build a basic CMS system and add message push functionality. Through this example, you can add similar message push functionality to your CMS system to provide better user experience and interactivity. By mastering these basic concepts and techniques, you can further customize and expand your CMS system according to actual needs.

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