python 调用百度地图地点检索webAPI

摘要：百度地图提供了开放的，使用方法服务右上角登陆账号点击获取密钥创建应用填写应用名称白名单然后复制例如然后直接上代码提供了种方式行政区划区域检索圆形区域检索矩形区域检索详情可见详情本文以为例市场深圳你的返回结果如下南山市场南新路广东省深

WEB服务API

然后直接上代码
API提供了3种方式

详情可见API详情
本文以 1,3为例

import requests

url = "http://api.map.baidu.com/place/v2/search"
querystring = {"query":"市场","region":"深圳","output":"json","ak":"你的ak","page_size":20,"page_num":0}
response = requests.request("GET", url, params=querystring)
r = response.json()
print(r["results"])
print(len(r["results"]))

返回结果如下

[{"name": "南山市场", "location": {"lat": 22.531757, "lng": 113.926754}, "address": "南新路2008", "province": "广东省", "city": "深圳市", "area": "南山区", "street_id": "d6df91c124f80073f7b9164d", "telephone": "13590117093", "detail": 1, "uid": "d6df91c124f80073f7b9164d"}, {"name": "笋岗文具玩具礼品批发市场", "location": {"lat": 22.564115, "lng": 114.114963}, "address": "宝安北路1025号", "province": "广东省", "city": "深圳市", "area": "罗湖区", "street_id": "28e700f171893318095cb34a", "telephone": "(0755)82268844", "detail": 1, "uid": "28e700f171893318095cb34a"}, {"name": "嶂背综合市场", "location": {"lat": 22.692344, "lng": 114.255645}, "address": "广东省深圳市龙岗区嶂背路216号", "province": "广东省", "city": "深圳市", "area": "龙岗区", "street_id": "4fc3161a8a8d3db03a13fd59", "detail": 1, "uid": "4fc3161a8a8d3db03a13fd59"}, {"name": "圳美市场", "location": {"lat": 22.796433, "lng": 113.951935}, "address": "广东省深圳市光明区光明新区喜乐多百货(康明路东)", "province": "广东省", "city": "深圳市", "area": "光明区", "street_id": "5ffe414874a5986d9fec2b06", "detail": 1, "uid": "5ffe414874a5986d9fec2b06"}, {"name": "牛湖农贸市场", "location": {"lat": 22.730088, "lng": 114.095257}, "address": "观澜镇牛湖村高尔夫大道旁", "province": "广东省", "city": "深圳市", "area": "龙华区", "street_id": "8f6d8c61968269a36c47605b", "detail": 1, "uid": "8f6d8c61968269a36c47605b"}, {"name": "坪山综合批发市场", "location": {"lat": 22.695807, "lng": 114.346117}, "address": "坪山区新区东纵路470号坪山批发市场公交车站旁六和工地", "province": "广东省", "city": "深圳市", "area": "坪山区", "street_id": "550fd5f96c6d9060931fc955", "detail": 1, "uid": "550fd5f96c6d9060931fc955"}, {"name": "坪西市场", "location": {"lat": 22.765712, "lng": 114.292258}, "address": "吉祥一路23号", "province": "广东省", "city": "深圳市", "area": "龙岗区", "street_id": "87248d96c13e62aa2806ce5a", "detail": 1, "uid": "87248d96c13e62aa2806ce5a"}, {"name": "友信冷冻食品城", "location": {"lat": 22.66691, "lng": 114.13473}, "address": "深圳市龙岗区南湾街道上李朗社区平吉大道78号", "province": "广东省", "city": "深圳市", "area": "龙岗区", "street_id": "d8ef3b08c51b727a58bbbc69", "telephone": "(0755)88263688", "detail": 1, "uid": "d8ef3b08c51b727a58bbbc69"}, {"name": "石岩新村综合市场", "location": {"lat": 22.679288, "lng": 113.930496}, "address": "深圳市宝安区王家庄市场1号301", "province": "广东省", "city": "深圳市", "area": "宝安区", "street_id": "593850fb068b9720df1e526b", "detail": 1, "uid": "593850fb068b9720df1e526b"}, {"name": "新陂头农贸市场", "location": {"lat": 22.807519, "lng": 113.948556}, "address": "深圳市光明区康弘路13号", "province": "广东省", "city": "深圳市", "area": "光明区", "detail": 1, "uid": "3a0a78bd2b341d86631809d9"}, {"name": "爱华肉菜市场", "location": {"lat": 22.544775, "lng": 114.098053}, "address": "爱华路47号", "province": "广东省", "city": "深圳市", "area": "福田区", "street_id": "b533ea4af6bb89584f6d4645", "telephone": "(0755)83620019", "detail": 1, "uid": "b533ea4af6bb89584f6d4645"}, {"name": "茜坑老村综合市场", "location": {"lat": 22.69478, "lng": 114.036412}, "address": "新区观澜", "province": "广东省", "city": "深圳市", "area": "龙华区", "street_id": "50fb64ff5a658e20e9f8531b", "telephone": "13885524446", "detail": 1, "uid": "50fb64ff5a658e20e9f8531b"}, {"name": "利民农贸批发市场", "location": {"lat": 22.742953, "lng": 114.289898}, "address": "广东省深圳市龙岗区深惠路1256号", "province": "广东省", "city": "深圳市", "area": "龙岗区", "street_id": "61f634f6fce2e8616a49f3aa", "detail": 1, "uid": "61f634f6fce2e8616a49f3aa"}, {"name": "龙岗第一市场", "location": {"lat": 22.73833, "lng": 114.287002}, "address": "广东省深圳市龙岗区龙岗第一市场(龙岗大道西)", "province": "广东省", "city": "深圳市", "area": "龙岗区", "street_id": "0143dd2b837c3381cf06a435", "detail": 1, "uid": "0143dd2b837c3381cf06a435"}, {"name": "回龙埔综合市场", "location": {"lat": 22.736316, "lng": 114.241372}, "address": "深圳市龙岗区龙平西路26", "province": "广东省", "city": "深圳市", "area": "龙岗区", "street_id": "d219bb1dc2beb792f50e775d", "telephone": "18926789088", "detail": 1, "uid": "d219bb1dc2beb792f50e775d"}, {"name": "公明综合市场", "location": {"lat": 22.786351, "lng": 113.899172}, "address": "光明区公明街道振明路145-5", "province": "广东省", "city": "深圳市", "area": "光明区", "detail": 1, "uid": "1eeed5464e94e5ebb5147f4c"}, {"name": "民治综合街市", "location": {"lat": 22.630651, "lng": 114.045652}, "address": "深圳市龙华区民治大道412", "province": "广东省", "city": "深圳市", "area": "龙华区", "street_id": "d0b8923fcf5d4bfbb5f42f5f", "detail": 1, "uid": "d0b8923fcf5d4bfbb5f42f5f"}, {"name": "荔园集贸批发市场", "location": {"lat": 22.698857, "lng": 114.141112}, "address": "平湖镇景秀三巷7号", "province": "广东省", "city": "深圳市", "area": "龙岗区", "street_id": "7ee3ccf7b8aed470047ce87c", "telephone": "(0755)28852881", "detail": 1, "uid": "7ee3ccf7b8aed470047ce87c"}, {"name": "富民铁路市场", "location": {"lat": 22.617064, "lng": 114.126306}, "address": "广东省深圳市龙岗区布李路164号", "province": "广东省", "city": "深圳市", "area": "龙岗区", "street_id": "96e3e1a27685cb82cae33c57", "detail": 1, "uid": "96e3e1a27685cb82cae33c57"}, {"name": "盐田海鲜批发市场", "location": {"lat": 22.590926, "lng": 114.284179}, "address": "深圳市盐田区海鲜街28", "province": "广东省", "city": "深圳市", "area": "盐田区", "street_id": "fc7675243816e6e34f776ea2", "telephone": "(0755)25202868", "detail": 1, "uid": "fc7675243816e6e34f776ea2"}]

返回20条
page_size最大为20
page_num参数可以控制页码数
下面是重点！

但是通过行政区地点检索 最多返回400个这是百度的限制
这时就需要 通过矩形区域检索
将深圳划分为多个区域进行检索
a和b的坐标在这里定位坐标拾取网站

import requests
import time
import json
keyword = "菜市场"
city = "深圳"

url = "http://api.map.baidu.com/place/v2/search"
a = "22.4717881915,113.7808575851"
b = "22.7960248910,114.3961567319"
#a为深圳左下角坐标，b为深圳右上角坐标

left_bottom = [113.7808575851,22.4717881915] # 设置区域左下角坐标（百度坐标系）
right_top = [114.3961567319,22.7960248910] # 设置区域右上角坐标（百度坐标系）

part_n = 5 # 设置区域网格（5*5）

x_item = (right_top[0]-left_bottom[0])/part_n
y_item = (right_top[1]-left_bottom[1])/part_n
n = 0 # 切片计数器
url0 = "http://api.map.baidu.com/place/v2/search?"
data = []
for i in range(part_n):
     for j in range(part_n):
         left_bottom_part = [left_bottom[0]+i*x_item,left_bottom[1]+j*y_item]; # 切片的左下角坐标
         right_top_part = [right_top[0]+i*x_item,right_top[1]+j*y_item]; # 切片的右上角坐标
         for k in range(20):
             time.sleep(0.6)
             url = url0 + "query=" + "市场" + "&page_size=20&page_num=" + str(k) + "&scope=1&bounds=" + str(
                 left_bottom_part[1]) + "," + str(left_bottom_part[0]) + "," + str(right_top_part[1]) + "," + str(
                 right_top_part[0]) + "&output=json&ak=" + "你的ak"
             print(str(left_bottom_part[1]) + "," + str(left_bottom_part[0]))
             print(str(right_top_part[1]) + "," + str(right_top_part[0]))
             print("===================================================")
             response = requests.request("GET", url)
             response = response.json()
             print(response)
             r = response["results"]
             data.append(r)

这样就可以突破深圳区域400的限制了,可以分为1010更细化 1010共返回1200+结果