{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# 定义实体类"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "metadata": {},
   "outputs": [],
   "source": [
    "# 国外疫情实时概况\n",
    "class OutsideSummary:\n",
    "    def __init__(self):\n",
    "        self.currentConfirmedCount = 0\n",
    "        self.confirmedCount = 0\n",
    "        self.suspectedCount = 0\n",
    "        self.curedCount = 0\n",
    "        self.deadCount = 0\n",
    "        self.suspectedIncr = 0\n",
    "        self.currentConfirmedIncr = 0\n",
    "        self.confirmedIncr = 0\n",
    "        self.curedIncr = 0\n",
    "        self.deadIncr = 0\n",
    "\n",
    "    def get_info_tuple(self):\n",
    "        return (self.currentConfirmedCount, self.confirmedCount, self.suspectedCount, self.curedCount,\n",
    "                 self.deadCount, self.suspectedIncr, self.currentConfirmedIncr, self.confirmedIncr, self.curedIncr,\n",
    "                 self.deadIncr)\n",
    "    def __str__(self):\n",
    "        return 'currentConfirmedCount:%s, confirmedCount:%s, suspectedCount:%s, curedCount:%s, deadCount:%s, suspectedIncr:%s, currentConfirmedIncr:%s, confirmedIncr:%s, curedIncr:%s, deadIncr:%s' % (\n",
    "        self.currentConfirmedCount, self.confirmedCount, self.suspectedCount, self.curedCount, self.deadCount,\n",
    "        self.suspectedIncr, self.currentConfirmedIncr, self.confirmedIncr, self.curedIncr, self.deadIncr)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# 数据库实体类"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {},
   "outputs": [],
   "source": [
    "#数据库实体类\n",
    "import pymysql\n",
    "class MyDB:\n",
    "    def __init__(self, host, user, passwd, db):\n",
    "        self.conn = pymysql.connect(host, user, passwd, db)\n",
    "        self.cursor = self.conn.cursor()\n",
    "    def get_outsideSummary_list_tuple(self, outsideSummary):\n",
    "        info_tuple = []\n",
    "        info_tuple.append(outsideSummary.get_info_tuple())\n",
    "        return info_tuple\n",
    "    # 保存数据\n",
    "    def save_outsideSummary_datas(self, outsideSummary):\n",
    "        print('+++ [MyDB] delete from outsideSummary_realtime_datas') \n",
    "        self.cursor.execute('delete from outsideSummary_realtime_datas') \n",
    "        self.conn.commit()\n",
    "        \n",
    "        sql = 'insert into outsideSummary_realtime_datas(currentConfirmedCount,confirmedCount,suspectedCount,curedCount,deadCount,suspectedIncr,currentConfirmedIncr,confirmedIncr,curedIncr,deadIncr) values(%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)'\n",
    "        res = self.get_outsideSummary_list_tuple(outsideSummary)\n",
    "        print('+++ save_outsideSummary_datas, data len: %d' % len(res))\n",
    "        try:\n",
    "            self.cursor.executemany(sql, res)\n",
    "            self.conn.commit()\n",
    "        except Exception as e:\n",
    "            print(e)\n",
    "        print('+++ save_outsideSummary_datas is over.')\n",
    "    def __del__(self):\n",
    "        if self.conn is not None:\n",
    "            self.conn.close()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# 业务逻辑类"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "+++ [MyDB] delete from outsideSummary_realtime_datas\n",
      "+++ save_outsideSummary_datas, data len: 1\n",
      "+++ save_outsideSummary_datas is over.\n"
     ]
    }
   ],
   "source": [
    "#业务逻辑类\n",
    "import requests\n",
    "import re\n",
    "from bs4 import BeautifulSoup\n",
    "import json\n",
    "class DataService:\n",
    "    def __init__(self):\n",
    "        self.db = MyDB('localhost', 'root', 'liyujiao0352','covid19_datas_guangxi')\n",
    "        \n",
    "\n",
    "# 爬取页面\n",
    "res = requests.get('https://ncov.dxy.cn/ncovh5/view/pneumonia')\n",
    "# 重新解码\n",
    "res = res.content.decode('utf-8')\n",
    "# 构建soup对象\n",
    "soup = BeautifulSoup(res, 'html.parser')\n",
    "# 使用soup对象查找国外疫情数据标签\n",
    "tag = soup.find('script', attrs={'id': 'getStatisticsService'})\n",
    "# 转成字符串\n",
    "tagstr = tag.string\n",
    "# 使用正则表达式查找所有内容\n",
    "result = re.findall('\\{\"currentConfirmedCount\".*?\"deadIncr\".*?\\}', tagstr)\n",
    "# 获取国外疫情数据\n",
    "#print(result[0])\n",
    "obj = json.loads(result[0])\n",
    "#print(obj)\n",
    "def fetch_outside_summary(obj):\n",
    "    outsideSummary = OutsideSummary()\n",
    "    outsideSummary.currentConfirmedCount = int(obj['currentConfirmedCount'])\n",
    "    outsideSummary.confirmedCount = int(obj['confirmedCount'])\n",
    "    outsideSummary.suspectedCount = int(obj['suspectedCount'])\n",
    "    outsideSummary.curedCount = int(obj['curedCount'])\n",
    "    outsideSummary.deadCount = int(obj['deadCount'])\n",
    "    outsideSummary.suspectedIncr = int(obj['suspectedIncr'])\n",
    "    outsideSummary.currentConfirmedIncr = int(obj['currentConfirmedIncr'])\n",
    "    outsideSummary.confirmedIncr = int(obj['confirmedIncr'])\n",
    "    outsideSummary.curedIncr = int(obj['curedIncr'])\n",
    "    outsideSummary.deadIncr = int(obj['deadIncr'])\n",
    "    return outsideSummary\n",
    "    \n",
    "# 创建Dataservice对象\n",
    "ds = DataService()\n",
    "outsideSummary=fetch_outside_summary(obj)\n",
    "ds.db.save_outsideSummary_datas(outsideSummary)\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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