python读取MySQL数据存到一个Excel的多个sheet表里，并通过邮件发送

需求：
python读取MySQL数据存到一个Excel的多个sheet表里，并通过邮件发送
代码：

import pymysql
import xlwt
import datetime
from email.mime.multipart import MIMEMultipart
from email.header import Header
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.application import MIMEApplication
import smtplib

# 连接数据库
def conn_db():
	# 服务器ip
    host = '*.*.*.*'
    # 数据库端口号
    port = 3306
	# MySQL用户名
    user = 'root'
    # MySQL密码
    passwd = '密码'
    # 数据库名
    db = '数据库名'
    charset = 'utf8'
    conn = pymysql.connect(host=host, port=port, user=user, passwd=passwd, db=db, charset=charset)
    return conn

# 使用cursor()方法获取操作游标
def cursor_db():
    conn = conn_db()
    cursor = conn.cursor()
    return cursor

# 创建Excel
def create_excel():
    workbook = xlwt.Workbook(encoding='utf-8')
    return workbook

# 在Excel里创建第一张sheet表
def save_data1_to_excel(cursor,workbook):
    # 使用execute方法执行SQL语句,并将统计结果存储在effect_row变量中
    effect_row = cursor.execute("select `id` from `date_test` where `id` >2")
    # 打印总行数
    print effect_row
    # 获取所有的记录结果
    result = cursor.fetchall()
    # 获取上述SQL语句中的检索条件名称（将要成为Excel第一张sheet表的第一行的表头）
    fields = cursor.description
    # 创建Excel中的一个sheet，并命名且为可重写状态
    sheet = workbook.add_sheet('result1',cell_overwrite_ok=True)
    # 构造一个列表VnameList，用于将上述表头重命名，一定要一一对应
    VnameList = ["id"]
    # 将上述list中的虚拟身份依次填入Excel中去
    for field in range(0,len(VnameList)):
        sheet.write(0,field,VnameList[field].encode("utf-8"))
    # 根据横纵坐标依次录入查询到的信息值
    row = 1
    col = 0
    for row in range(1,len(result)+1):
        for col in range(0,len(fields)):
            sheet.write(row,col,u'%s'%result[row-1][col])

# 以下在Excel里创建2张sheet表，步骤和上面相同，区别在于要修改sheet表的表名以及表头的重命名
def save_data2_to_excel(cursor,workbook):
    effect_row = cursor.execute("select `id`,`name` from `date_test` where `id` >2")
    print effect_row
    result = cursor.fetchall()
    fields = cursor.description
    sheet = workbook.add_sheet('result2',cell_overwrite_ok=True)
    VnameList = ["id",u"名称"]
    for field in range(0,len(VnameList)):
        sheet.write(0,field,VnameList[field].encode("utf-8"))
    row = 1
    col = 0
    for row in range(1,len(result)+1):
        for col in range(0,len(fields)):
            sheet.write(row,col,u'%s'%result[row-1][col])


# 发送邮件
def send_email(fileName):
    # 发送邮箱服务器
    smtpserver = '*.*.*.*'
    # 发送邮箱用户名密码
    user = '用户名'
    password = '密码'
    # 接收邮箱
    receives = ['****@163.com']

    msg = MIMEMultipart()  # 创建一个带附件的实例
    subject = Header("预警执行结果", 'utf-8').encode()
    msg["Subject"] = subject  # 指定邮件主题
    msg["From"] = user  # 邮件发送人
    msg["To"] = ','.join(receives)  # 邮件接收人，如果存在多个收件人，可用join连接
    msg.attach(MIMEText('附件为预警执行结果,请查收!', _subtype='html', _charset='utf-8'))
    part = MIMEApplication(open(fileName, 'rb').read())
    part.add_header('Content-Disposition', 'attachment', filename=fileName)
    msg.attach(part)

    try:
        s = smtplib.SMTP(smtpserver, timeout=10)  # 连接smtp邮件服务器,端口默认是25
        s.login(user, password)  # 登陆服务器
        s.sendmail(user, receives, msg.as_string())  # 发送邮件
        s.close()
    except Exception as e:
        print ("send email error:"+str(e))


def save_to_excel_total():

    # 创建数据库连接
    conn = conn_db()
    cursor = cursor_db()

    # 创建Excel
    workbook = create_excel()
    # 获取当前时间，用作Excel的后缀名
    file_time = datetime.datetime.now()
    file_mark = file_time.strftime('%Y%m%d')
    # 生成Excel的路径，要指定具体路径
    path = "/Users/zll/Documents/testdata"
    # 生成的Excel的名称，%s代表后面日期的变量
    excelName = "/warning_result_%s.xls"
    fileName = path + excelName % file_mark.encode("utf-8")

    # 生成预警的7张sheet表
    save_data1_to_excel(cursor, workbook)
    save_data2_to_excel(cursor, workbook)

    # 将数据存储到Excel中
    workbook.save(fileName)
    # 发送邮件
    send_email(fileName)
    # 关闭数据库连接
    conn.commit()
    cursor.close()
    conn.close()

if __name__=="__main__":

    save_to_excel_total()

执行结果：