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每日一博 | Python 爬虫：抓取手机 APP 数据

1、抓取APP数据包

方法详细可以参考这篇博文： http://my.oschina.net/jhao104/blog/605963

得到超级课程表登录的地址：http://120.55.151.61/V2/StudentSkip/loginCheckV4.action

表单：每日一博 | Python 爬虫：抓取手机 APP 数据

表单中包括了用户名和密码，当然都是加密过了的，还有一个设备信息，直接post过去就是。

另外必须加header,一开始我没有加header得到的是登录错误，所以要带上header信息。

每日一博 | Python 爬虫：抓取手机 APP 数据

2、登录

登录代码：

import urllib2 from cookielib import CookieJar loginUrl = 'http://120.55.151.61/V2/StudentSkip/loginCheckV4.action' headers = {     'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',     'User-Agent': 'Dalvik/1.6.0 (Linux; U; Android 4.1.1; M040 Build/JRO03H)',     'Host': '120.55.151.61',     'Connection': 'Keep-Alive',     'Accept-Encoding': 'gzip',     'Content-Length': '207',     } loginData = 'phoneBrand=Meizu&platform=1&deviceCode=868033014919494&account=FCF030E1F2F6341C1C93BE5BBC422A3D&phoneVersion=16&password=A55B48BB75C79200379D82A18C5F47D6&channel=MXMarket&phoneModel=M040&versionNumber=7.2.1&' cookieJar = CookieJar() opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cookieJar)) req = urllib2.Request(loginUrl, loginData, headers) loginResult = opener.open(req).read() print loginResult

登录成功会返回一串账号信息的json数据

每日一博 | Python 爬虫：抓取手机 APP 数据

和抓包时返回数据一样，证明登录成功

每日一博 | Python 爬虫：抓取手机 APP 数据

3、抓取数据

用同样方法得到话题的url和post参数

做法就和模拟登录网站一样。详见： http://my.oschina.net/jhao104/blog/547311

下见最终代码，有主页获取和下拉加载更新。可以无限加载话题内容。

#!/usr/local/bin/python2.7 # -*- coding: utf8 -*- """   超级课程表话题抓取 """ import urllib2 from cookielib import CookieJar import json   ''' 读Json数据 ''' def fetch_data(json_data):     data = json_data['data']     timestampLong = data['timestampLong']     messageBO = data['messageBOs']     topicList = []     for each in messageBO:         topicDict = {}         if each.get('content', False):             topicDict['content'] = each['content']             topicDict['schoolName'] = each['schoolName']             topicDict['messageId'] = each['messageId']             topicDict['gender'] = each['studentBO']['gender']             topicDict['time'] = each['issueTime']             print each['schoolName'],each['content']             topicList.append(topicDict)     return timestampLong, topicList   ''' 加载更多 ''' def load(timestamp, headers, url):     headers['Content-Length'] = '159'     loadData = 'timestamp=%s&phoneBrand=Meizu&platform=1&genderType=-1&topicId=19&phoneVersion=16&selectType=3&channel=MXMarket&phoneModel=M040&versionNumber=7.2.1&' % timestamp     req = urllib2.Request(url, loadData, headers)     loadResult = opener.open(req).read()     loginStatus = json.loads(loadResult).get('status', False)     if loginStatus == 1:         print 'load successful!'         timestamp, topicList = fetch_data(json.loads(loadResult))         load(timestamp, headers, url)     else:         print 'load fail'         print loadResult         return False  loginUrl = 'http://120.55.151.61/V2/StudentSkip/loginCheckV4.action' topicUrl = 'http://120.55.151.61/V2/Treehole/Message/getMessageByTopicIdV3.action' headers = {     'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',     'User-Agent': 'Dalvik/1.6.0 (Linux; U; Android 4.1.1; M040 Build/JRO03H)',     'Host': '120.55.151.61',     'Connection': 'Keep-Alive',     'Accept-Encoding': 'gzip',     'Content-Length': '207',     }  ''' ---登录部分--- ''' loginData = 'phoneBrand=Meizu&platform=1&deviceCode=868033014919494&account=FCF030E1F2F6341C1C93BE5BBC422A3D&phoneVersion=16&password=A55B48BB75C79200379D82A18C5F47D6&channel=MXMarket&phoneModel=M040&versionNumber=7.2.1&' cookieJar = CookieJar() opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cookieJar)) req = urllib2.Request(loginUrl, loginData, headers) loginResult = opener.open(req).read() loginStatus = json.loads(loginResult).get('data', False) if loginResult:     print 'login successful!' else:     print 'login fail'     print loginResult  ''' ---获取话题--- ''' topicData = 'timestamp=0&phoneBrand=Meizu&platform=1&genderType=-1&topicId=19&phoneVersion=16&selectType=3&channel=MXMarket&phoneModel=M040&versionNumber=7.2.1&' headers['Content-Length'] = '147' topicRequest = urllib2.Request(topicUrl, topicData, headers) topicHtml = opener.open(topicRequest).read() topicJson = json.loads(topicHtml) topicStatus = topicJson.get('status', False) print topicJson if topicStatus == 1:     print 'fetch topic success!'     timestamp, topicList = fetch_data(topicJson)     load(timestamp, headers, topicUrl)

结果：

每日一博 | Python 爬虫：抓取手机 APP 数据