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getPoiInfo.py
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getPoiInfo.py
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# -*- coding: utf-8 -*-
import MySQLdb
import urllib2
import json
import sys
reload(sys)
sys.setdefaultencoding('utf-8')
def geocoding_api_request( address ):
try:
request_url = "http://api.map.baidu.com/geocoder/v2/?address=" + address + "&output=json&ak=0LnNaEYoprF736QdhXNmAnX2"
response = urllib2.urlopen(request_url).read()
result = json.loads(response)
if result['status'] == 0:
return result['result']['location']
else:
print address
return None
except BaseException:
print address
return None
def geocoding_process_table(sql,table_name):
cursor.execute(sql)
results = cursor.fetchall()
for row in results:
url = row[0]
name = row[1]
district = row[2]
street = row[3]
address = row[4]
location = geocoding_api_request((pro_city.decode('utf-8') + district + street + address + name).replace(' ','').replace('...',''))
if(location != None):
longitude = location['lng']
latitude = location['lat']
if table_name == 'new_house_table':
insert_sql = "update new_house_table set longitude = '%f', latitude = '%f' WHERE url = '%s' " % (longitude,latitude,url)
elif table_name == 'second_house_table':
insert_sql = "update second_house_table set longitude = '%f', latitude = '%f' WHERE url = '%s' " % (longitude,latitude,url)
elif table_name == 'rental_house_table':
insert_sql = "update rental_house_table set longitude = '%f', latitude = '%f' WHERE url = '%s' " % (longitude,latitude,url)
cursor.execute(insert_sql)
db.commit()
def insert_poiInfo(poi):
uid = poi['uid']
latitude = poi['location']['lat']
longitude = poi['location']['lng']
address = poi['address']
name = poi['name']
rating = "0"
comment_num = "0"
category = "unknown"
if 'overall_rating' in poi['detail_info']:
rating = poi['detail_info']['overall_rating']
if 'comment_num' in poi['detail_info']:
comment_num = poi['detail_info']['comment_num']
if 'type' in poi['detail_info']:
category = poi['detail_info']['type']
sql = "INSERT INTO POI_INFO_TABLE(uid,latitude,longitude,address,name,category,rating,comment_num) VALUES \
('%s','%f','%f','%s','%s','%s','%s','%s')" % \
(uid,latitude,longitude,address,name,category,rating,comment_num)
try:
cursor.execute(sql)
db.commit()
except BaseException:
return
def uid_dis_dict_push(poi):
if 'distance' in poi['detail_info'] and poi['detail_info']['distance'] <= 1000:
distance = poi['detail_info']['distance']
insert_poiInfo(poi)
uid_dis_dict[poi['uid']] = distance
def place_api_request(latitude,longitude,page_num):
try:
request_url = "http://api.map.baidu.com/place/v2/search?&query=" + query_key.decode('utf-8') + "&location=" + str(latitude).decode('utf-8') + "," + str(longitude).decode('utf-8') + "&radius=1000&output=json&ak=0LnNaEYoprF736QdhXNmAnX2&scope=2&page_size=20&page_num=" + str(page_num).decode('utf-8')
response = urllib2.urlopen(request_url).read()
result = json.loads(response)
if result['status'] == 0 and len(result['results']) > 0:
return result
else:
print result['message'],len(result['results'])
return None
except BaseException:
print "exception"
return None
def place_api_request_loop(latitude,longitude):
result = place_api_request(latitude,longitude,0)
if result != None:
total = result['total']
for i in range(len(result['results'])):
uid_dis_dict_push(result['results'][i])
if(total > 20):
for i in range(1,total / 20 + 1):
result = place_api_request(latitude,longitude,i)
if result != None:
for j in range(len(result['results'])):
uid_dis_dict_push(result['results'][j])
def dict_to_string(dict):
return str(dict).replace("u'",'"').replace("'",'"')
def place_process_table(sql,table_name):
cursor.execute(sql)
results = cursor.fetchall()
for row in results:
uid_dis_dict.clear()
url = row[0]
latitude = row[1]
longitude = row[2]
place_api_request_loop(latitude,longitude)
if table_name == 'new_house_table':
insert_sql = "update new_house_table set uid_dis_dict = '%s' WHERE url = '%s' " % \
(dict_to_string(uid_dis_dict),url)
elif table_name == 'second_house_table':
insert_sql = "update second_house_table set uid_dis_dict = '%s' WHERE url = '%s' " % \
(dict_to_string(uid_dis_dict),url)
elif table_name == 'rental_house_table':
insert_sql = "update rental_house_table set uid_dis_dict = '%s' WHERE url = '%s' " % \
(dict_to_string(uid_dis_dict),url)
cursor.execute(insert_sql)
db.commit()
pro_city = '浙江省杭州市'
db = MySQLdb.connect(host="localhost",user="root",passwd="",db="estate_appraisal_db",charset="utf8")
cursor = db.cursor()
cursor.execute("SET NAMES utf8")
#geocoding_process_table("SELECT url,name,district,street,address FROM new_house_table","new_house_table")
#geocoding_process_table("SELECT url,name,district,street,address FROM second_house_table","second_house_table")
#geocoding_process_table("SELECT url,name,district,street,address FROM rental_house_table","rental_house_table")
uid_dis_dict = {}
query_key = '银行$医院$学校$酒店$餐饮$公交站$地铁$超市$购物$景点'
#place_process_table("SELECT url,latitude,longitude FROM new_house_table","new_house_table")
place_process_table("SELECT url,latitude,longitude FROM second_house_table","second_house_table")
#place_process_table("SELECT url,latitude,longitude FROM rental_house_table","rental_house_table")