小编给大家分享一下如何使用Python实现查询mysql数据库并通过邮件发送信息功能，希望大家阅读完这篇文章之后都有所收获，下面让我们一起去探讨吧！
具体如下：
这里使用Python查询mysql数据库，并通过邮件发送宕机信息。
Python代码如下：
#-*- coding: UTF-8 -*-
#!/usr/bin/env python
'''''
author:qlzhong
Created on 2015-6-29
征途宕机日志统计汇总
'''
import MySQLdb
import time
import datetime
import smtplib
from email.mime.text import MIMEText
mailto_list=["mail@mail.com"]
#mailto_list=["zhongqilong@ztgame.com"]
mail_host="smtp.qq.com" #设置服务器
mail_user="" #用户名
mail_pass="" #口令
mail_postfix="" #发件箱的后缀
def send_mail(to_list,sub,content):
me="hello"+"<"+mail_user+"@"+mail_postfix+">"
msg = MIMEText(content,_subtype='plain',_charset='utf-8')
msg['Subject'] = sub
msg['From'] = me
msg['To'] = ";".join(to_list)
try:
server = smtplib.SMTP()
server.connect(mail_host)
server.login(mail_user,mail_pass)
server.sendmail(me, to_list, msg.as_string())
server.close()
return True
except Exception, e:
print str(e)
return False
class MySQLHelper:
#配置数据库信息并连接
def __init__(self,host="****",user="****",password="****",port=3306,charset="utf8"):
self.host=host
self.user=user
self.password=password
self.port=port
self.charset=charset
try:
self.conn=MySQLdb.connect(host=self.host,user=self.user,passwd=self.password,port=self.port)
self.conn.set_character_set(self.charset)
self.cur=self.conn.cursor()
print("==================connect success====================")
except MySQLdb.Error as e:
print("Mysql Error %d: %s" % (e.args[0], e.args[1]))
#取出需要统计的数据库名称
def db_name(self):
un_db_name = ['information_schema','cz','ecshop','edutone','gz','mysql','newparent','parent','performance_schema','test','xx','yyhd']
name = []
try:
self.cur.execute('show databases')
for row in self.cur.fetchall():
for i in row:
if i not in un_db_name:
name.append(i)
return name
except MySQLdb.Error as e:
print("Mysql Error %d: %s" % (e.args[0], e.args[1]))
#指定查询的数据库名称
def selectDb(self,db):
try:
self.conn.select_db(db)
except MySQLdb.Error as e:
print("Mysql Error %d: %s" % (e.args[0], e.args[1]))
#使用该语句来直接查询昨天和今天的差异
def monion_today_yesddiff(self, today, yestoday):
try:
strresult = ""
strsql = 'SELECT address, charversion, sum(today) as today, sum(yesterday) as yesterday '
strsql += 'FROM (SELECT address, "" as today, tmp as yesterday, charversion FROM ( SELECT count(*) As tmp, address, charversion From `' + yestoday
strsql += '` WHERE charversion like \'1.0.0.3%\' GROUP BY address) As TEST WHERE tmp>=50 '
strsql += ' union all '
strsql += 'SELECT address, tmp as today, "" as yesterday, charversion FROM (SELECT count(*) As tmp, address, charversion From `'
strsql += today
strsql += '` WHERE charversion like \'1.0.0.3%\' GROUP BY address) As TEST WHERE tmp>=50 ) As Diff GROUP BY address, charversion'
print(strsql + "\n")
self.cur.execute(strsql)
name_list = [tuple[0] for tuple in self.cur.description]
strresult += str(name_list) + "\n"
# for row in self.cur.fetchall():
# return row
s = self.cur.fetchall()
todaynum = 0
yestodaynum = 0
for col in s:
strresult += str(col[0]) + " " + str(col[1]) + " " + str(col[2]) + " " + str(col[3]) + "\n"
todaynum += int(col[2])
yestodaynum += int(col[3])
strresult += "今日宕机总数：" + str(todaynum) + " 昨日宕机总数：" + str(yestodaynum) + " 同昨日相比增加: " + str(todaynum - yestodaynum) + "\n"
return strresult
except MySQLdb.Error as e:
print("Mysql Error:%s\n" %(e))
def close(self):
self.cur.close()
self.conn.close()
todayrang = 0;
yestodayrang = 0;
#按照范围查询
def monion_rang_today_yesddiff(self, today, yestoday, num1, num2):
try:
strresult = ""
strsql = 'SELECT sum(today) as today, sum(yesterday) as yesterday FROM (SELECT "" as today, tmp as yesterday FROM ( SELECT count(*) As tmp From `' + yestoday
strsql += '` WHERE charversion like \'1.0.0.3%\' GROUP BY address) As TEST WHERE tmp<' + str(num2) + ' AND tmp>=' + str(num1) + ' union all '
strsql += 'SELECT tmp as today, "" as yesterday FROM (SELECT count(*) As tmp From `' + today + '` WHERE charversion like \'1.0.0.3%\' GROUP BY address) As TEST WHERE tmp<' + str(num2) + ' AND tmp>=' + str(num1) + ' ) As Diff'
print(strsql + "\n")
self.cur.execute(strsql)
name_list = [tuple[0] for tuple in self.cur.description]
#strresult += str(name_list) + "\n"
# for row in self.cur.fetchall():
# return row
s = self.cur.fetchall()
todaynum = 0
yestodaynum = 0
for col in s:
strresult += str(num1) + " <= tmp < " + str(num2) + " " + str(col[0]) + " " + str(col[1]) + "\n"
self.todayrang += int(col[0])
self.yestodayrang += int(col[1])
return strresult
except MySQLdb.Error as e:
print("Mysql Error:%s\n" %(e))
def close(self):
self.cur.close()
self.conn.close()
#宕机数地址50以下最多的版本
def monion_rang_today_diff(self, today, num):
try:
strresult = ""
strsql = 'SELECT charversion, sum(today) as today FROM (SELECT tmp as today, "" as yesterday, charversion FROM (SELECT count(*) As tmp, charversion From `' + today
strsql += '` WHERE charversion like \'1.0.0.3%\' GROUP BY address) As TEST WHERE tmp< ' + str(num) + ') As Diff GROUP BY charversion'
print(strsql + "\n")
self.cur.execute(strsql)
name_list = [tuple[0] for tuple in self.cur.description]
#strresult += str(name_list) + "\n"
# for row in self.cur.fetchall():
# return row
s = self.cur.fetchall()
for col in s:
strresult += str(col[0]) + " " + str(col[1]) + "\n"
return strresult
except MySQLdb.Error as e:
print("Mysql Error:%s\n" %(e))
def close(self):
self.cur.close()
self.conn.close()
if __name__ == '__main__':
textbody=""
textbody = textbody + "征途宕机日志查询汇总" + "\n"
#时间
timenow = datetime.datetime.now()
textbody = textbody + "时间：" + timenow.strftime('%Y-%m-%d %H:%M:%S') + "\n"
#连接
ipadress="192.168.100.38"
port=3306
dbHelper = MySQLHelper(ipadress, "gameerror", "errorpasswd", port)
textbody = textbody + "服务器地址：" + ipadress + ":" + str(port) + "\n"
dbHelper.selectDb("GAMEERROR")
#操作
dbname = dbHelper.db_name()
textbody = textbody + "数据库：" + str(dbname[0]) + "\n"
time1 = timenow + datetime.timedelta(days = -1)
time2 = timenow + datetime.timedelta(days = -2)
strtime1 = time1.strftime('%Y%m%d')
tabletoday = "ErrorDump" + strtime1
strtime2 = time2.strftime('%Y%m%d')
tableyestoday = "ErrorDump" + strtime2
textbody = textbody + "table name: today: " + tabletoday + " yestoday: " + tableyestoday + "\n"
textbody = textbody + "\n昨天和今天的差异 宕机地址 版本号 今天宕机次数 昨天宕机次数" + "\n"
textbody = textbody + str(dbHelper.monion_today_yesddiff(tabletoday, tableyestoday)) + "\n"
textbody = textbody + "50以下地址(tmp代表某个宕机地址的个数) 今天 昨天:" + "\n"
textbody = textbody + str(dbHelper.monion_rang_today_yesddiff(tabletoday, tableyestoday, 30, 50))
textbody = textbody + str(dbHelper.monion_rang_today_yesddiff(tabletoday, tableyestoday, 10, 30))
textbody = textbody + str(dbHelper.monion_rang_today_yesddiff(tabletoday, tableyestoday, 0, 10))
textbody = textbody + "50以上地址总和" + " 今天： " + str(dbHelper.todayrang) + " 昨天: " + str(dbHelper.yestodayrang) + " 今天比昨天增加: " + str(dbHelper.todayrang - dbHelper.yestodayrang) + "\n"
num=50
textbody = textbody + "\n宕机数地址" + str(num) + "以下最多的版本 版本号 次数" + "\n"
textbody = textbody + str(dbHelper.monion_rang_today_diff(tabletoday, num))
file_object = open('ztdumptip.txt')
try:
all_the_text = file_object.read()
finally:
file_object.close()
textbody += all_the_text
print(textbody)
if send_mail(mailto_list,"征途客户端宕机日志统计",textbody):
print "发送成功"
else:
print "发送失败"
dbHelper.close()看完了这篇文章，相信你对“如何使用Python实现查询mysql数据库并通过邮件发送信息功能”有了一定的了解，如果想了解更多相关知识，欢迎关注创新互联成都网站设计公司行业资讯频道，感谢各位的阅读！
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