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抓取超级课程表话题数据。
博文：http://my.oschina.net/jhao104/blog/606922

#!/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)
    data = load(timestamp, headers, topicUrl)
    if data:
        timestamp, topicList = fetch_data(data)