#!/usr/bin/python

#coding:utf-8

import xlrd

import xlwt

import requests

import urllib

import math

import re

pattern_x=re.compile(r'"x":(".+?")')

pattern_y=re.compile(r'"y":(".+?")')

def mercator2wgs84(mercator):

#key1=mercator.keys()[0]

#key2=mercator.keys()[1]

point_x=mercator[0]

point_y=mercator[1]

x=point_x/20037508.3427892*180

y=point_y/20037508.3427892*180

y=180/math.pi*(2*math.atan(math.exp(y*math.pi/180))-math.pi/2)

return (x,y)

def get_mercator(addr):

quote_addr=urllib.quote(addr.encode('utf8'))

city=urllib.quote(u'齐齐哈尔市龙'.encode('utf8'))

province=urllib.quote(u'黑龙江省'.encode('utf8'))

if quote_addr.startswith(city) or quote_addr.startswith(province):

pass

else:

quote_addr=city+quote_addr

s=urllib.quote(u'北京市'.encode('utf8'))

api_addr="http://api.map.baidu.com/?qt=gc&wd=%s&cn=%s&ie=utf-8&oue=1&fromproduct=jsapi&res=api&callback=BMap._rd._cbk62300"%(quote_addr

,s)

req=requests.get(api_addr)

content=req.content

x=re.findall(pattern_x,content)

y=re.findall(pattern_y,content)

if x:

x=x[0]

y=y[0]

x=x[1:-1]

y=y[1:-1]

x=float(x)

y=float(y)

location=(x,y)

else:

location=()

return location

def run():

data=xlrd.open_workbook('Book2.xls')

rtable=data.sheets()[0]

nrows=rtable.nrows

values=rtable.col_values(0)

workbook=xlwt.Workbook()

wtable=workbook.add_sheet('data',cell_overwrite_ok=True)

row=0

for value in values:

mercator=get_mercator(value)

if mercator:

wgs=mercator2wgs84(mercator)

else:

wgs=('NotFound','NotFound')

print "%s,%s,%s"%(value,wgs[0],wgs[1])

wtable.write(row,0,value)

wtable.write(row,1,wgs[0])

wtable.write(row,2,wgs[1])

row=row+1

workbook.save('data.xls')

if __name__=='__main__':

run()