利用百度地图开发者中心中的web API获取城市POI数据，后期会写出完整的多种参数详细数据获取教程。本次只写出了根据关键词和目的地的数据获取程序。
将爬取下来的数据保存到本地csv文件。
百度API返回的是标准的json格式数据。具体实现程序如下：

import time
import json
import sys
import requests                                            
from tqdm import tqdm     #进度条显示包

def get_info(keyname, place, ak, path):
	"""
	Function:
	Arg:
		keyname:传入的是一个关键字列表
		place:传入的是一个查询地方(str)
		ak:申请的百度地图开发者中心的AK
	"""
	urls = []
	for i in keyname:
		url = "http://api.map.baidu.com/place/v2/search?query="+i+"&region="+place+"&output=json&ak="+ak
		urls.append(url) 
	for url in tqdm(urls):
		try:
			time.sleep(0.1)                                                     # 为了防止并发量报警，设置了一个5秒的休眠。
			html = requests.get(url)                                            # 获取网页信息
			data = html.json()                                                  # 获取网页信息的json格式数据
			print(data)
		except:
			time.sleep(1)
			continue
		if data['status'] == 0:
			if 'results' in data:
				for item in data['results']:
					name = item.get('name', 'default')
					if 'location' in item:
						lat = item['location']['lat']
						lon = item['location']['lng']
					else:
						lat = item.get('location', 'default')
						lon = item.get('location', 'default')
					address = item.get('address', 'default')
					province = item.get('province', 'default')
					city= item.get('city', 'default')
					area= item.get('area', 'default')
					street = item.get('street_id', 'default')
					detail = item.get('detail', 'default')
					uid = item.get('uid', 'default')
					# j_str = jname+','+str(jlat)+','+str(jlon)+','+jadd+'\n'
					with open(path, 'a', encoding='utf-8') as f:
						f.write(str(name) + ',' + str(lat) + ',' + str(lon) + ',' + str(address).replace(',', ';') + ',' + province + ',' + city
							+ ',' + area + ',' + str(street) + ',' + str(detail) + ',' + str(uid) + ',' + url.replace(',', ';') + '\n')              
                # print('已经成功获取第%d分之%d条url信息' % (times, url_count))
			else:
				print('no results')
				pass
		else:
			ignor += 1
            # for ii in range(0, 12):
            #     if ii < 12:
            #         print("已等待%d" % ii + "小时")
            #         time.sleep(3600)
            # print("12小时等待结束")
			print("已经忽略%d条url" % ignor)
			continue

if __name__ == '__main__':
	
	keyname=["中奇大厦","他她公寓","阳光大厦","凯风大厦","鑫成大厦"]
	place="武汉"
	ak="你在百度申请的AK"
	savepath = r"E:\dosn2\save\data_download2.csv"
	with open(savepath, 'a', encoding='utf-8') as f:
		f.write("name" + ',' + "lat" + ',' + "lon" + ',' +"add" + ',' + "province" + ',' + "city"
			+ ',' + "area" + ',' + "street" + ',' + "detail"+ ',' + "uid" + ',' + "url" + '\n')
	get_info(keyname, place, ak, savepath)
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