拉钩网爬取所有python职位信息

最近在找工作，所以爬取了拉钩网的全部python职位，以便给自己提供一个方向。拉钩网的数据还是比较容易爬取的，得到json数据直接解析就行，废话不多说， 直接贴代码：

 1 import json
 2 import urllib
 3 import urllib2
 4 from openpyxl import load_workbook
 5 filename = ‘E:\excel\position_number_11_2.xlsx‘
 6 ws = load_workbook(filename=filename)
 7 sheet = ws.create_sheet(0)
 8 sheet.title = ‘position‘
 9 count = 1
10
11 for page in xrange(100):
12     from_data = {
13         ‘first‘: ‘false‘,
14         ‘pn‘: page,
15         ‘kd‘: ‘Python‘
16     }
17
18     header = {
19         "User-Agent": ‘Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0‘,
20         ‘Referer‘: ‘https://www.lagou.com/jobs/list_Python?px=default&city=%E5%85%A8%E5%9B%BD‘,
21     }
22     request_url = ‘https://www.lagou.com/jobs/positionAjax.json?px=default&needAddtionalResult=false‘
23     data = urllib.urlencode(from_data)
24
25     request = urllib2.Request(request_url, headers=header, data=data)
26         try:
27         html = urllib2.urlopen(request).read().decode(‘utf-8‘)
28     except Exception:
29         print ‘没有职位信息‘
30         break
31     # print html
32     jsonobj = json.loads(html)
33     # print jsonobj
34     dict_obj = jsonobj[‘content‘][‘positionResult‘][‘result‘]
35     for item in dict_obj:
36         if item:
37             sheet.cell(row=count, column=1).value = item[‘companySize‘]
38             sheet.cell(row=count, column=2).value = item[‘workYear‘]
39             sheet.cell(row=count, column=3).value = item[‘education‘]
40             sheet.cell(row=count, column=4).value = item[‘financeStage‘]
41             sheet.cell(row=count, column=5).value = item[‘city‘]
42             sheet.cell(row=count, column=6).value = item[‘industryField‘]
43             sheet.cell(row=count, column=7).value = item[‘formatCreateTime‘]
44             sheet.cell(row=count, column=8).value = item[‘positionName‘]
45             sheet.cell(row=count, column=9).value = item[‘companyFullName‘]
46             sheet.cell(row=count, column=10).value = item[‘salary‘]
47             count += 1
48             ws.save(‘E:\excel\position_number_11_2.xlsx‘)

代码写得比较急，就没怎么规范。 过两天把微博和豆瓣的代码发出来，希望园里的大神多指点^_^