BI自动化之Python自动查询数据库生成Excel并每天定时邮件发送

一、目的

1.每天自动查询SQL数据

2.生成Excel并作为附件邮件发送

3.每天定时自动执行

二、开发环境

1.Python3.5

2.SQL server2014

三、代码

一两个小时弄的，代码可能有点乱，凑合着看吧

import pymssql
import pandas as pd
import time,datetime
import smtplib
import traceback
from email.mime.text import MIMEText
from email.mime.application import  MIMEApplication
from email.mime.multipart import MIMEMultipart



#连接数据库
def get_db_connection():
    host = 'xxx.xxxx.xxx'
    port = 1433
    user = 'xxxx'
    password = 'xxxxx'
    database = 'xxxx'
    conn = pymssql.connect(host=host,user=user,password=password,database=database,charset="utf8")
    print('数据库连接成功')
    return conn
#查询SQL结果并生成execl
def get_execl(filepath):
    sql= '''select xxxx,sum(xx) as SALES 
     from xxx a 	left join xxxx b	
     on a.xxx=b.xxxx	
     where (Date=convert(date,GETDATE()-1)) 
     group by xxxx'''
    conn=get_db_connection()
    #直接使用pandas的read_sql即可转化成DataFrame
    df=pd.read_sql(sql,conn)
    #使用解析的方法（列表+header）
    # column=cur.description
    # columns=[column[i][0] for i in range(len(column))] #利用光标获得列名
    # df=pd.DataFrame([list(i)for i in data],columns=columns)
    df.to_excel(filepath)
    print('已经生成Excel文件')
#发送邮件
def sendmail(subject, msg, to_addrs, from_addr, smtp_addr, password,filepath):
    mail_msg = MIMEMultipart()
    mail_msg['Subject'] = subject
    mail_msg['From'] = from_addr
    mail_msg['To'] = ','.join(to_addrs)
    msg['Cc'] = '[email protected]'
    mail_msg.attach(MIMEText(msg, 'html', 'utf-8'))
    part1 = MIMEApplication(open(filepath, 'rb').read())
    part1.add_header('Content-Disposition', 'attachment', filename=('bychannel.xlsx'))
    mail_msg.attach(part1)
    try:
        s = smtplib.SMTP()
        s.connect(smtp_addr)
        s.login(from_addr, password)
        s.sendmail(from_addr, to_addrs, mail_msg.as_string())
        s.quit()
    except Exception:
        print('error')
        print(traceback.format_exc())
if __name__ == '__main__':
    curdate = time.strftime('%Y%m%d',time.localtime(time.time()))
    filepath = 'D:/bychannel{}.xlsx'.format(curdate)
    get_execl(filepath)
    from_addr = '[email protected]'
    smtp_addr = 'smtp.163.com'
    to_addrs = 'xxxx@xxxx','[email protected]'
    subject = (curdate) + 'report  by channel'
    password = 'xxxxxxx'
    msg = '===\nPlease do not reply this mail directly,\n it is a system generated mail\n===\n '
    sendmail(subject, msg, to_addrs, from_addr, smtp_addr, password,filepath)

四、测试效果

五、设置每天定时执行

1.新建一个bat文件，输入调用脚本，Python必须加入环境变量，如果找不到环境变量设置，crm输入sysdm.cpl

2.利用Windows自带的计划任务每天定时调用这个脚本

我的电脑邮件-管理-任务计划程序，设置一下操作和触发器等，这样就可以每天定时执行了，如果找不到任务管理器利用cmd命令行输入taskschd.msc