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开启一个服务，将服务器指定的文件读取，传播到网上其他终端

article 2024/11/28 8:35:34

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

@app.route('/get-data')
def get_data():
    # 读取data.txt文件的内容
    with open(r'./2024/2/4/data.txt', 'r') as file:
        data = file.read()
        print(data)
    # 返回数据的HTML表示
    return render_template_string('<div>{{ data }}°C</div>', data=data)

@app.route('/')
def index():
    string='''
        <!DOCTYPE html>
        <html lang="en">
        <head>
            <meta charset="UTF-8">
            <title>局部更新示例</title>
        </head>
        <body>
            <div id="data-container">这里将显示data.txt的内容</div>

            <script>
                document.addEventListener('DOMContentLoaded', function() {
                    const updateData = () => {
                        fetch('/get-data')
                            .then(response => response.text())
                            .then(html => {
                                document.getElementById('data-container').innerHTML = html;
                            })
                            .catch(error => console.error('Error:', error));
                    };

                    // 每5秒更新一次内容
                    setInterval(updateData, 1000);
                });
            </script>
        </body>
        </html>
            '''
    return string

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=80, debug=True)

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