概述

本文实例讲述了Python实现的查询MysqL数据库并通过邮件发送信息功能。分享给大家供大家参考，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,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,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,num):
    try:
      strresult = ""
      strsql = 'SELECT charversion,sum(today) as today FROM (SELECT tmp as today,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,10,30))
  textbody = textbody + str(dbHelper.monion_rang_today_yesddiff(tabletoday,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()

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