全國行政區劃信息查詢平臺地址：http://xzqh.mca.gov.cn/map

檢查網頁源碼：

檢查網頁源碼可以發現： 所有省級信息全部在javaScript下的json中，會在頁面加載時加載json數據，填充到頁面的option中。
1.第一步：使用正則表達式抓取json數據并解析，租成一個province集合：

# 獲取省的集合def get_province(self):pattern = re.compile(r"var json =(.*?);", re.MULTILINE | re.DOTALL)script = self.soup.find("script", text=pattern)lists = str(pattern.search(script.text).group(1))json_list = json.loads(lists)# province_list = set()province_dict = dict()for json_data in json_list:province = json_data['shengji']quhua_code = json_data['quHuaDaiMa']province_dict.update({quhua_code: province})# province_list.add(province)# print(province_dict)return province_dict

2.第二步：檢查該網站實現級聯查詢的方式，找出查詢市區的方式

根據這段源碼可看出，在選擇 省級的后，網頁會調用selectJson接口進行一個post請求，上圖可以看到請求的body和header等信息。
于是事情就變得簡單起來：代碼可以這樣寫（如下）

# 獲取市def get_city(self, shengji):body = ("shengji=" + shengji).encode('UTF-8')# body = "shengji='江蘇省(蘇)'"..encode('UTF-8')headers = {'Content-Type': "application/x-www-form-urlencoded; charset=utf-8",'User-Agent': "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, ""like Gecko) Chrome/77.0.3865.120 Safari/537.36"}response = requests.post('http://xzqh.mca.gov.cn/selectJson', data=body, headers=headers)content = response.contentjson_list = json.loads(content)# city_list = set()city_dict = dict()for json_data in json_list:citys = json_data['diji']# city_list.add(citys)quhua_code = json_data['quHuaDaiMa']city_dict.update({quhua_code: citys})return city_dict# return city_list# 獲取區def get_area(self, shengji, diji):body = ("shengji=" + shengji + "&diji=" + diji).encode('UTF-8')headers = {'Content-Type': "application/x-www-form-urlencoded; charset=utf-8",'User-Agent': "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, ""like Gecko) Chrome/77.0.3865.120 Safari/537.36"}response = requests.post('http://xzqh.mca.gov.cn/selectJson', data=body, headers=headers)content = response.contentjson_list = json.loads(content)# area_list = set()area_dict = dict()for json_data in json_list:area = json_data['xianji']# area_list.add(area)area_code = json_data['quHuaDaiMa']area_dict.update({area_code: area})return area_dict

2.第三步：main函數（遍歷所有省市區+數據入庫）
數據庫表結構如下：

【全部代碼如下】：

import requests from bs4 import BeautifulSoup import pymysql import re import jsonclass allAreaDataNew(object):base_url = 'http://xzqh.mca.gov.cn/map'headers = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Safari/537.36'}wb_data = requests.get(base_url, headers=headers)wb_data.encoding = 'GBK'soup = BeautifulSoup(wb_data.text, 'lxml')# print(soup)def __init__(self):self.db = pymysql.connect("***", "***", "***", "***", charset="utf8mb4") # mysql數據庫self.main()self.db.close()# 入口def main(self):sql_list = set()province_dict = self.get_province()for province_code in province_dict:province = province_dict[province_code]city_dict = self.get_city(province)sql_province = "insert into area_config values (null,'" + province + "','PROVINCE'," + province_code + ",0)"sql_list.add(sql_province)print(province_code + "----------------------------------省------------------------------------------" + province + "\n")for city_code in city_dict:city = city_dict[city_code]area_dict = self.get_area(province, city)print(city_code + "*******************市****************" + city + "\n")# 處理 省直轄縣級行政單位if city == '省直轄縣級行政單位' or city == '自治區直轄縣級行政單位':sql_city = "insert into area_config values (null,'" + city + "','CITY'," + province_code + "," + province_code + ")"sql_list.add(sql_city)for area_code in area_dict:area = area_dict[area_code]print(area_code + "-區-" + area + "\n")sql_area = "insert into area_config values (null,'" + area + "','DISTRICT'," + area_code + "," + province_code + ")"sql_list.add(sql_area)else:sql_city = "insert into area_config values (null,'" + city + "','CITY'," + city_code + "," + province_code + ")"sql_list.add(sql_city)for area_code in area_dict:area = area_dict[area_code]print(area_code + "-區-" + area + "\n")sql_area = "insert into area_config values (null,'" + area + "','DISTRICT'," + area_code + "," + city_code + ")"sql_list.add(sql_area)print(str(sql_list))# 事務入庫empty_sql = "delete from area_config"self.connect_mysql(empty_sql, sql_list)# 獲取省def get_province(self):pattern = re.compile(r"var json =(.*?);", re.MULTILINE | re.DOTALL)script = self.soup.find("script", text=pattern)lists = str(pattern.search(script.text).group(1))json_list = json.loads(lists)# province_list = set()province_dict = dict()for json_data in json_list:province = json_data['shengji']quhua_code = json_data['quHuaDaiMa']province_dict.update({quhua_code: province})# province_list.add(province)# print(province_dict)return province_dict# 獲取市def get_city(self, shengji):body = ("shengji=" + shengji).encode('UTF-8')# body = "shengji='江蘇省(蘇)'"..encode('UTF-8')headers = {'Content-Type': "application/x-www-form-urlencoded; charset=utf-8",'User-Agent': "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, ""like Gecko) Chrome/77.0.3865.120 Safari/537.36"}response = requests.post('http://xzqh.mca.gov.cn/selectJson', data=body, headers=headers)content = response.contentjson_list = json.loads(content)# city_list = set()city_dict = dict()for json_data in json_list:citys = json_data['diji']# city_list.add(citys)quhua_code = json_data['quHuaDaiMa']city_dict.update({quhua_code: citys})return city_dict# return city_list# 獲取區def get_area(self, shengji, diji):body = ("shengji=" + shengji + "&diji=" + diji).encode('UTF-8')headers = {'Content-Type': "application/x-www-form-urlencoded; charset=utf-8",'User-Agent': "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, ""like Gecko) Chrome/77.0.3865.120 Safari/537.36"}response = requests.post('http://xzqh.mca.gov.cn/selectJson', data=body, headers=headers)content = response.contentjson_list = json.loads(content)# area_list = set()area_dict = dict()for json_data in json_list:area = json_data['xianji']# area_list.add(area)area_code = json_data['quHuaDaiMa']area_dict.update({area_code: area})return area_dict# return area_listdef connect_mysql(self, empty_sql, sql_list):cursor = self.db.cursor()try:cursor.execute(empty_sql)for sql in sql_list:cursor.execute(sql)print('=================================更新所有數據完成！=================================')except Exception as e:print('=================================更新失敗！=================================')print(e)self.db.rollback()finally:cursor.close()# 提交操作self.db.commit()if __name__ == '__main__':allAreaDataNew()

代碼執行成功后就可以查到中國所有省市區啦！：

特殊情況：“省直轄縣級行政單位”和“自治區直轄縣級行政單位”

部分省有特殊的“直轄縣級行政單位”或“自治區直轄縣級行政單位”
參考：https://baike.baidu.com/item/省直轄縣級行政單位/6903180?fr=aladdin
遇到這種情況有點懵逼，因為沒有 區號代碼 所以無法關聯父子關系。
但是無妨，數據庫設計有type字段～直接將省級區號代碼作為唯一值給到市，作為區號代碼，再將這個值賦值給區，作為區的父級區號代碼，這樣后臺用type+區號代碼判斷關聯關系。

PS：后續
1.由于本身是java項目要用到中國的省市區 2.并且中國的省市區的變化很頻繁（市級區級的變化時有發生），因此后期可以用jython將其用到java項目，并且可以寫一個job定時任務，定時更新數據庫表。

參考文檔

https://jingyan.baidu.com/article/d169e1867bd27f436611d829.html

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