python3+mysql查询数据并通过邮件群发excel附件

本文实例为大家分享了python3邮件群发excel附件的具体代码，供大家参考，具体内容如下

连接、查询mysql,导入到excel文件，定时群发邮件与附件。
主要用到pymysql ，smtplib ， xlwt

#1、导入模块

import pymysql #Python3的mysql模块，Python2 是mysqldbimport osimport datetime #定时发送，以及日期import shutil #文件操作import smtplib #邮件模块from email.mime.text import MIMETextfrom email.mime.multipart import MIMEMultipartfrom email.header import Headerimport timeimport xlwt #excel写入

#2、连接并查询mysql

def eMysql(mysql_host,mysql_port,mysql_user,mysql_password,mysql_db,sql): try:  db = pymysql.connect(host=mysql_host,port=mysql_port,user=mysql_user, password=mysql_password, db=mysql_db,charset = 'utf8')#连接数据库编码注意是utf8，不然中文结果输出会乱码  print("MYSQL CONNECTED.")# 连接数据库  cursor = db.cursor()# 使用cursor()方法获取操作游标  cursor.execute(sql)# 执行SQL语句  print('SQL EXECUTED')  results = cursor.fetchall()# 结果  return results  print('RESULTS EXECUTED')  db.close() # 关闭数据库连接  print('MYSQL CLOSED') except:  print('SQL FAILED')

#3、写入excel

def eWrite(fLocate,results,file_sheet,file_subject,style0): try:  if os.path.exists(fLocate):   os.remove(fLocate) # 如果文件存在，则删除  f = xlwt.Workbook(encoding='utf-8') #打开excel文件  fs = f.add_sheet(file_sheet) #sheet名  subject = list(file_subject) #列表化  for i in range(len(subject)): #找到日期列   if '日期' in subject[i]:    col_num=i  for i in range(len(subject)): #sheet标题   fs.write(0, i, subject[i])  for i in range(len(results)): #sheet数据,日期列格式为date   for j in range(len(results[0])):    if j== col_num:     fs.write(i + 1, j, results[i][j],style0)    else:     fs.write(i + 1, j, results[i][j])  for i in range(10): #单元格宽度为   fs.col(i).width=3333  print("WRITE FINISHED")  f.save(fLocate) except :  print ("WRITE FAILED")

#4、发送邮件

def eSend(sender,receiver,username,password,smtpserver,subject,e_content,file_path,file_name): try:#邮件头  message = MIMEMultipart()  message['From'] = sender#发送  message['To'] = ",".join(receiver)#收件  message['Subject'] = Header(subject, 'utf-8')  message.attach(MIMEText(e_content, 'plain', 'utf-8'))# 邮件正文# 构造附件  att1 = MIMEText(open(file_path+file_name,'rb').read(), 'base64', 'utf-8')  att1["Content-Type"] = 'application/octet-stream'  att1["Content-Disposition"] = "attachment;filename="+file_name  message.attach(att1)#执行  smtp = smtplib.SMTP()  smtp.connect(smtpserver) #连接服务器  smtp.login(username, password) #登录  smtp.sendmail(sender, receiver, message.as_string()) #发送  smtp.quit()  print("SEND") except:  print("SEND FAILED")