数据爬取存储到MySQL中

本文主要是介绍数据爬取存储到MySQL中，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！

我这里用的是pycharm64.exe软件和数据库MySQL5.5，数据库可视化SQLyogCommunity - 64 bit软件，语言是python3

爬取内容是腾讯实时监控内容，url:https://news.qq.com/zt2020/page/feiyan.htm?from=timeline&isappinstalled=0#/

爬取结果

 history表

爬取程序：

#爬取历史数据
import requests
import json
import time
def get_history():
    url = 'https://view.inews.qq.com/g2/getOnsInfo?name=disease_other&callback=jQuery341026745307075030955_1584946267054&_=1584946267055'
    headers ={
        'user-agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.25 Safari/537.36 Core/1.70.3741.400 QQBrowser/10.5.3863.400'
    }
    res = requests.get(url,headers=headers)
#     print(res.text)
    response_data = json.loads(res.text.replace('jQuery341026745307075030955_1584946267054(','')[:-1])
    # print(response_data)
    data = json.loads(response_data['data'])
    # print(data.keys())
    chinaDayList = data['chinaDayList']#历史记录
    chinaDayAddList = data['chinaDayAddList']#历史新增记录
    # print(chinaDayList,chinaDayAddList)
    history = {}
    for i in chinaDayList:
        ds = '2021.' + i['date']#时间
        tup = time.strptime(ds,'%Y.%m.%d')
        ds = time.strftime('%Y-%m-%d',tup)#改变时间格式，插入数据库
        confirm = i['confirm']
        suspect = i['suspect']
        heal = i['heal']
        dead = i['dead']
        history[ds] = {'confirm':confirm,'suspect':suspect,'heal':heal,'dead':dead}
    for i in chinaDayAddList:
        ds = '2021.' + i['date']#时间
        tup = time.strptime(ds,'%Y.%m.%d')
        ds = time.strftime('%Y-%m-%d',tup)#改变时间格式，插入数据库
        confirm_add = i['confirm']
        suspect_add = i['suspect']
        heal_add = i['heal']
        dead_add = i['dead']
        history[ds].update({'confirm_add':confirm_add,'suspect_add':suspect_add,'heal_add':heal_add,'dead_add':dead_add})
    return history

数据库连接

import time
import pymysql
import traceback
def get_conn():
     # 创建连接
    conn = pymysql.connect(host='localhost',
                         user='root',
                         password='123456',
                         database='jdbc',
                         charset='utf8')
    # 创建游标
    cursor = conn.cursor()  # 执行完毕返回的结果集默认以元组显示
    return conn, cursor
def close_conn(conn, cursor):
    if cursor:
        cursor.close()
    if conn:
        conn.close()

创建表

import pymysql
 
# 打开数据库连接
db = pymysql.connect(host='localhost',
                     user='root',
                     password='123456',
                     database='jdbc')
 
# 使用 cursor() 方法创建一个游标对象 cursor
cursor = db.cursor()
 
# 使用 execute() 方法执行 SQL，如果表存在则删除
cursor.execute("DROP TABLE IF EXISTS history")
 
# 使用预处理语句创建表
sql = """CREATE TABLE  history (
         ds  CHAR(20),
         confirm  INT(20),
         confirm_add  INT(20),
         suspect INT,
         suspect_add INT,
         heal INT,
         heal_add INT,
         dead INT,
         dead_add INT )"""
         
#  update_time
cursor.execute(sql)
 
# 关闭数据库连接
db.close()

表二

import pymysql
 
# 打开数据库连接
db = pymysql.connect(host='localhost',
                     user='root',
                     password='123456',
                     database='jdbc')
 
# 使用 cursor() 方法创建一个游标对象 cursor
cursor = db.cursor()
 
# 使用 execute() 方法执行 SQL，如果表存在则删除
cursor.execute("DROP TABLE IF EXISTS details")
 
# 使用预处理语句创建表
sql = """CREATE TABLE  details (
        id int(11) not null auto_increment,
        updateTime datetime default null comment '数据最后更新时间',
        province varchar(50) default null comment '省',
        city varchar(50) default null comment '市',
        confirm int(11) default null comment '累计确诊',
        confirm_add int(11) default null comment '新增确诊',
        heal int(11) default null comment '累计治愈',
        dead int(11) default null comment '累计死亡',
        primary key(id)
        )engine=InnoDB default charset=utf8;"""
         
#  update_time
cursor.execute(sql)
 
# 关闭数据库连接
db.close()

数据存储

#数据存储details
def update_details():

    cursor = None
    conn = None
    try:
        li = get_details()
        conn, cursor = get_conn()
        # sql = "insert into details(update_time,province,city,confirm,confirm_add,heal,dead) values(%s,%s,%s,%s,%s,%s,%s)"
        sql = "insert into details(updateTime,province,city,confirm,confirm_add,heal,dead) values(%s,%s,%s,%s,%s,%s,%s)"
        sql_query = 'select %s=(select updateTime from details order by id desc limit 1)' #对比当前最大时间戳
        cursor.execute(sql_query,li[0][0])
        if not cursor.fetchone()[0]:
            print(f"{time.asctime()}开始更新最新数据")
            for item in li:
                cursor.execute(sql, item)
            conn.commit()  # 提交事务 update delete insert操作
            print(f"{time.asctime()}更新最新数据完毕")
        else:
            print(f"{time.asctime()}已是最新数据！")
    except:
        traceback.print_exc()
    finally:
        close_conn(conn, cursor)
# get_history()
# update_details()


def insert_history():
    cursor = None
    conn = None
    try:
        dic = get_history()
        print(f"{time.asctime()}开始插入历史数据")
        conn, cursor = get_conn()
        sql = "insert into history values(%s,%s,%s,%s,%s,%s,%s,%s,%s)"
        for k, v in dic.items():
            # item 格式 {‘2021-01-13’: {‘confirm’: 41, ‘suspect’: 0, ‘heal’: 0, ‘dead’: 1}
            cursor.execute(sql, [k, v.get("confirm"), v.get("confirm_add"),v.get("suspect"),
            v.get("suspect_add"), v.get("heal"), v.get("heal_add"),
            v.get("dead"), v.get("dead_add")])
        conn.commit() # 提交事务 update delete insert操作
        print(f"{time.asctime()}插入历史数据完毕")
    except:
            traceback.print_exc()
    finally:
            close_conn(conn, cursor)
insert_history()

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