google API 需要 …….
#-*- coding: utf8 -*-
from xml.dom import minidom
import urllib2, urllib
#这个KEY本来是google要求的，否则不允许用它的API，可是我没用这个KEY也可以啊…囧了
KEY = ‘ABQIAAAAm5e8FerSsVCrPjUC9W8BqBShYm95JTkTs6vbZ7nB48Si7EEJuhQJur9kGGJoqUiYond0w-7lKR6JpQ’
class GetData(object):
def __init__(self):
self.values = {‘q’: ”,
‘sensor’: ‘false’,
‘output’: ‘xml’,
‘oe’: ‘utf8’}
self.url = ‘/maps/geo’
def catchData(self, city, key=KEY):
”’
利用google map api从网上获取city的经纬度。
”’
self.values[‘q’] = city
#self.values[‘key’] = key
arguments = urllib.urlencode(self.values)
url_get = self.url + ‘?’ + arguments
handler = urllib2.urlopen(url_get)
try:
self.lon, self.lat = self.parseXML(handler)
#print ‘lon:%d\tlat:%d’ % (self.lon, self.lat)
return self.lon, self.lat
except IndexError:
print ‘城市: %s 发生异常！’ % (city,)
finally:
handler.close()
def parseXML(self, handler):
”’
解析从API上获取的XML数据。
”’
xml_data = minidom.parse(handler)
data = xml_data.getElementsByTagName(‘coordinates’)[0].firstChild.data
coordinates = data.split(‘,’)
lon = int(float(coordinates[0]) * 1000000)
lat = int(float(coordinates[1]) * 1000000)
return lon, lat
if __name__ == ‘__main__’:
getData = GetData()
cityName = raw_input(‘请输入一个城市：’)
longitude, latitude = getData.catchData(cityName)
print ‘%s \n经度：%d\n纬度：%d\n’ % (cityName, longitude, latitude)
