记一次Echarts地图百度坐标使用

# -*- coding: UTF-8 -*-
import urllib
import urllib2
import hashlib
import json
import sys
import codecs

adressFile = ‘plazaname.txt‘
coordsFile = ‘coords.txt‘

def getAddressCoord(address):
    coord = []
    AK = ‘myak‘
    SK = ‘mysk‘
    url = ‘http://api.map.baidu.com‘
    # 以get请求为例http://api.map.baidu.com/geocoder/v2/?address=百度大厦&output=json&ak=yourak
    queryStr = ‘/geocoder/v2/?address=‘+address+‘&output=json&ak=‘ + AK
    # 对queryStr进行转码，safe内的保留字符不转换

    encodedStr = urllib.quote(queryStr, safe="/:=&?#+!$,;‘@()*[]")
    # 在最后直接追加上yoursk
    rawStr = encodedStr + SK
    # md5计算出的sn值7de5a22212ffaa9e326444c75a58f9a0
    # 最终合法请求url是http://api.map.baidu.com/geocoder/v2/?address=百度大厦&output=json&ak=yourak&sn=7de5a22212ffaa9e326444c75a58f9a0
    SN= hashlib.md5(urllib.quote_plus(rawStr)).hexdigest()

    url = urllib.quote(url+queryStr+"&sn="+SN, safe="/:=&?#+!$,;‘@()*[]")  
    
    response = urllib2.urlopen(url)
    html = response.read()
    decoded = json.loads(html)
    
    print decoded
    
    if decoded["status"] != 302:
        coord.append(decoded["result"]["location"]["lng"])
        coord.append(decoded["result"]["location"]["lat"])
    return coord
    
def getAddressList():
    file = codecs.open(adressFile,‘r‘)
    lines = [line.strip() for line in file] 
    file.close()
    return lines

def getAdressCoords():
    dict_t = {}
    content = getAddressList()
    for address in content:
        key = str(address).decode("utf-8")
        dict_t[key] = getAddressCoord(address)
    with codecs.open(coordsFile,‘w‘) as f:
        f.write(json.dumps(dict_t, ensure_ascii=False))
        
getAdressCoords()