single_video_crawler/common/db.py

# -*- coding: utf-8 -*-
# @Time: 2023/12/26
"""
数据库连接及操作
"""
import redis
import pymysql
from common.common import Common
# from common import Common

class MysqlHelper:
    @classmethod
    def connect_mysql(cls):
        # 创建一个 Connection 对象，代表了一个数据库连接
        connection = pymysql.connect(
            host="rm-bp1k5853td1r25g3n690.mysql.rds.aliyuncs.com",# 数据库IP地址，内网地址
            # host="rm-j6cz4c6pt96000xi3lo.mysql.rds.aliyuncs.com",# 数据库IP地址，外网地址
            port=3306,                      # 端口号
            user="wx2016_longvideo",                 #  mysql用户名
            passwd="wx2016_longvideoP@assword1234",        # mysql用户登录密码
            db="longvideo",         # 数据库名
            # 如果数据库里面的文本是utf8编码的，charset指定是utf8
            charset = "utf8")

        return connection

    @classmethod
    def get_values(cls, sql):
        try:
            machine = ""
            # 连接数据库
            connect = cls.connect_mysql()
            # 返回一个 Cursor对象
            mysql = connect.cursor()
            # 执行 sql 语句
            mysql.execute(sql)

            # fetchall方法返回的是一个元组，里面每个元素也是元组，代表一行记录
            data = mysql.fetchall()

            # 关闭数据库连接
            connect.close()

            # 返回查询结果，元组
            return data
        except Exception as e:
            print(f"get_values异常:{e}\n")



if __name__ == "__main__":

    pass