需求就是统计每天客户端开机数据，将开机率低于30%的数据导出，每天发送邮件给相关业务人员。
- 查询数据
- 整理excel
- 发送邮件
一、数据查询方法（此项可根据实际业务需求更改）
def getUpRate(project_id):
val = str(1)
sql = "select rateNum from tablename where project_id=" + str(project_id)
cursor.execute(sql)
rateNum = cursor.fetchone()
if type(rateNum) != tuple :
insert_sql = "insert into tablename (project_id,rateNum) values('"+ str(project_id) + "','" + val + "')"
cursor.execute(insert_sql)
db.commit()
return val
else:
i = rateNum[0]+1
update_sql = "update tablename set rateNum="+str(i)+" where project_id=" + str(project_id)
cursor.execute(update_sql)
db.commit()
return i
二、数据生成excel
#create excel
s = 0;
wb = xlwt.Workbook(encoding = 'utf-8')
sh = wb.add_sheet('hotel')
sh.write(0,0,'project_id')
sh.write(0,1,'项目名称')
sh.write(0,2,'设备总数')
sh.write(0,3,'开机数')
sh.write(0,4,'异常累计天数')
for project in res:
s=s+1
err_num = getUpRate(project[1])
sh.write(s,0,project[1])
sh.write(s,1,project[2])
sh.write(s,2,project[3])
sh.write(s,3,project[4])
sh.write(s,4,err_num)
wb.save("example-"+ Yesterday + ".xls")
sendMail() #发送邮件方法，下方详情
三、发送邮件方法介绍
def sendMail():
host_server = 'smtp.qq.com' #根据实际情况写
sender_qq = '123@qq.com' #根据实际情况写
pwd = '123@123' #根据实际情况写
#发件人的邮箱
sender_qq_mail = '123@qq.com' #根据实际情况写
#收件人邮箱
receiver = '456@qq.com'#根据实际情况写
#邮件的正文内容
mail_content = "你好，<p>每日统计项目数据，请查收附件</p>"
#邮件标题
mail_title = 'xxx数据统计'
#邮件正文内容
msg = MIMEMultipart()
#msg = MIMEText(mail_content, "plain", 'utf-8')
msg["Subject"] = Header(mail_title, 'utf-8')
msg["From"] = sender_qq_mail
msg["To"] = Header("运维通知邮件组", 'utf-8') ## 接收者的别名
#邮件正文内容
msg.attach(MIMEText(mail_content, 'html', 'utf-8'))
# 构造附件1，传送当前目录下的 test.txt 文件
att1 = MIMEText(open("example-"+Yesterday+".xls", 'rb').read(), 'base64', 'utf-8')
att1["Content-Type"] = 'application/octet-stream'
# 这里的filename可以任意写，写什么名字，邮件中显示什么名字
att1["Content-Disposition"] = 'attachment; filename="example.xls"'
msg.attach(att1)
#ssl登录
smtp = SMTP_SSL(host_server)
#set_debuglevel()是用来调试的。参数值为1表示开启调试模式，参数值为0关闭调试模式
smtp.set_debuglevel(1)
smtp.ehlo(host_server)
smtp.login(sender_qq, pwd)
smtp.sendmail(sender_qq_mail, receiver, msg.as_string())
smtp.quit()
导出excel如遇到下图报错：
1.排查编码 #coding:utf-8 sys.setdefaultencoding('utf8') 等
2.写入第一行数据的中文字符，或者字符串需要有引号，忽略会报错。
Traceback (most recent call last):
File "excel.py", line 19, in <module>
wb.save('example.xls')
File "/usr/lib/python2.7/site-packages/xlwt/Workbook.py", line 643, in save
doc.save(filename, self.get_biff_data())
File "/usr/lib/python2.7/site-packages/xlwt/Workbook.py", line 618, in get_biff_data
shared_str_table = self.__sst_rec()
File "/usr/lib/python2.7/site-packages/xlwt/Workbook.py", line 580, in __sst_rec
return self.__sst.get_biff_record()
File "/usr/lib/python2.7/site-packages/xlwt/BIFFRecords.py", line 77, in get_biff_record
self._add_to_sst(s)
File "/usr/lib/python2.7/site-packages/xlwt/BIFFRecords.py", line 92, in _add_to_sst
u_str = upack2(s, self.encoding)
File "/usr/lib/python2.7/site-packages/xlwt/UnicodeUtils.py", line 50, in upack2
us = unicode(s, encoding)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe9 in position 0: ordinal not in range(128)
