这篇文章中的内容是来源于去年我用美国的VPS搭建博客的初始阶段，那是有很多恶意访问，我就根据access log中的源IP来进行了很多统计，同时我也将访问量最高的恶意访问的源IP拿来查询其地理位置信息。所以，我就用到了根据IP查询地理位置信息的一些东西，现在将这方面积累的一点东西共享出来。

根据IP查询所在地、运营商等信息的一些API如下（根据我有限的一点经验）：
1. 淘宝的API（推荐）：http://ip.taobao.com/service/getIpInfo.php?ip=110.84.0.129
2. 国外freegeoip.net（推荐）：http://freegeoip.net/json/110.84.0.129 这个还提供了经纬度信息（但不一定准）
3. 新浪的API：http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip;=110.84.0.129
4. 腾讯的网页查询：http://ip.qq.com/cgi-bin/searchip?searchip1=110.84.0.129
5. ip.cn的网页：http://www.ip.cn/index.php?ip=110.84.0.129
6. ip-api.com： http://ip-api.com/json/110.84.0.129 （看起来挺不错的，貌似直接返回中文城市信息，文档在 ip-api.com/docs/api:json）
7. http://www.locatorhq.com/ip-to-location-api/documentation.php （这个要注册才能使用，还没用过呢）

（第2个freegeoip.net的网站和IP数据的生成，代码在：https://github.com/fiorix/freegeoip）

为什么其中第4、5两个是网页查询也推荐了呢？是因为两方面原因，一是它们提供的信息比较准，二是使用了页面信息自动抓取（可能会用到我曾经写过的PhantomJS）也容易将其写到程序中成为API。

根据IP查询地理位置信息，我将其写成了一个较为通用的Python库（提供了前面提到的1、2、4、5等4种查询方式的API），可以根据IP查询到地域信息和ISP信息，具体代码见：
https://github.com/smilejay/python/blob/master/py2013/iplocation.py
注意其中对ip.cn网页的解析用到了webdriver和PhantomJS.

复制代码 代码如下:

!/usr/bin/python

-- coding: utf-8 --

'''
Created on Oct 20, 2013
@summary: geography info about an IP address
@author: Jay smile665@gmail.com http://smilejay.com/
'''

import json, urllib2
import re
from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

class location_freegeoip():
'''
build the mapping of the ip address and its location.
the geo info is from <freegeoip.net>
'''

def __init__(self, ip):  
    '''  

Constructor of location_freegeoip class
'''
self.ip = ip
self.api_format = 'json'
self.api_url = 'http://freegeoip.net/%s/%s' % (self.api_format, self.ip)

def get_geoinfo(self):  
    """ get the geo info from the remote API.  

return a dict about the location.
"""
urlobj = urllib2.urlopen(self.api_url)
data = urlobj.read()
datadict = json.loads(data, encoding='utf-8')

print datadict

    return datadict  

def get_country(self):  
    key = 'country_name'  
    datadict = self.get_geoinfo()  
    return datadict[key]  

def get_region(self):  
    key = 'region_name'  
    datadict = self.get_geoinfo()  
    return datadict[key]  

def get_city(self):  
    key = 'city'  
    datadict = self.get_geoinfo()  
    return datadict[key]  

class location_taobao():
'''
build the mapping of the ip address and its location
the geo info is from Taobao
e.g. http://ip.taobao.com/service/getIpInfo.php?ip=112.111.184.63
The getIpInfo API from Taobao returns a JSON object.
'''
def init(self, ip):
self.ip = ip
self.api_url = 'http://ip.taobao.com/service/getIpInfo.php?ip=%s' % self.ip

def get_geoinfo(self):  
    """ get the geo info from the remote API.  

return a dict about the location.
"""
urlobj = urllib2.urlopen(self.api_url)
data = urlobj.read()
datadict = json.loads(data, encoding='utf-8')

print datadict

    return datadict['data']  

def get_country(self):  
    key = u'country'  
    datadict = self.get_geoinfo()  
    return datadict[key]  

def get_region(self):  
    key = 'region'  
    datadict = self.get_geoinfo()  
    return datadict[key]  

def get_city(self):  
    key = 'city'  
    datadict = self.get_geoinfo()  
    return datadict[key]  

def get_isp(self):  
    key = 'isp'  
    datadict = self.get_geoinfo()  
    return datadict[key]  

class location_qq():
'''
build the mapping of the ip address and its location.
the geo info is from Tencent.
Note: the content of the Tencent's API return page is encoded by 'gb2312'.
e.g. http://ip.qq.com/cgi-bin/searchip?searchip1=112.111.184.64
'''
def init(self, ip):
'''
Construction of location_ipdotcn class.
'''
self.ip = ip
self.api_url = 'http://ip.qq.com/cgi-bin/searchip?searchip1=%s' % ip

def get_geoinfo(self):  
    urlobj = urllib2.urlopen(self.api_url)  
    data = urlobj.read().decode('gb2312').encode('utf8')  
    pattern = re.compile(r'该IP所在地为：<span>(.+)</span>')  
    m = re.search(pattern, data)  
    if m != None:  
        return m.group(1).split(' ')  
    else:  
        return None  

def get_region(self):  
    return self.get_geoinfo()[0]  

def get_isp(self):  
    return self.get_geoinfo()[1]  

class location_ipdotcn():
'''
build the mapping of the ip address and its location.
the geo info is from www.ip.cn
need to use PhantomJS to open the URL to render its JS
'''
def init(self, ip):
'''
Construction of location_ipdotcn class.
'''
self.ip = ip
self.api_url = 'http://www.ip.cn/%s' % ip

def get_geoinfo(self):  
    dcap = dict(DesiredCapabilities.PHANTOMJS)  
    dcap["phantomjs.page.settings.userAgent"] = (  
        "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:25.0) Gecko/20100101 Firefox/29.0 " )  
    driver = webdriver.PhantomJS(executable_path='/usr/local/bin/phantomjs', desired_capabilities=dcap)  
    driver.get(self.api_url)  
    text = driver.find_element_by_xpath('//div[@id="result"]/div/p').text  
    res = text.split('来自：')[1].split(' ')  
    driver.quit()  
    return res  

def get_region(self):  
    return self.get_geoinfo()[0]  

def get_isp(self):  
    return self.get_geoinfo()[1]  

if name == 'main':
ip = '110.84.0.129'

iploc = location_taobao(ip)

print iploc.get_geoinfo()

print iploc.get_country()

print iploc.get_region()

print iploc.get_city()

print iploc.get_isp()

iploc = location_qq(ip)

iploc = location_ipdotcn(ip)  

iploc.get_geoinfo()

print iploc.get_region()  
print iploc.get_isp()