实现效果：写一个接口，从mysql数据库读到user表的数据（用户名和密码），把数据作为回参

用到的库：flask，pymysql

代码：

from flask import Flask, jsonify
import pymysql
 
# 连接数据库
connection = pymysql.connect(host='localhost',
                             user='root',
                             password='123456qq',
                             database='test1',
                             charset='utf8mb4',
                             cursorclass=pymysql.cursors.DictCursor)
# 创建服务
app = Flask(__name__)
@app.route('/data')
def get_data():
    try:
        with connection.cursor() as cursor:
            # 写入SQL查询语句
            sql = "select * from user"
            cursor.execute(sql)
            result = cursor.fetchall()
            return jsonify(result)
    finally:
        connection.close()
 
if __name__ == '__main__':
    app.run(host='0.0.0.0', port=8880, threaded=True)

代码效果