Python之JSON库的使用（二）
·
Python之JSON库的使用
通过脚本抓取拉勾网某职位的数据，获取公司名称和最高薪资的信息，最后通过pyecharts实现可视化。
主体脚本：
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
File Name: lagou.py
Time : 2019/7/14 20:03
IDE :PyCharm
Author :Administrator
"""
import json
from pyecharts.charts import Bar
from pyecharts import options as opts
from pyecharts.globals import ThemeType
import requests
import urllib3
def Headers():
headers = {
'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36(KHTML, like Gecko) Chrome/70.0.3538.25 '
'Safari/537.36 Core/1.70.3704.400 QQBrowser/10.4.3588.400',
'Referer': 'https://www.lagou.com/jobs/list_%E6%B5%8B%E8%AF%95%E5%BC%80%E5%8F%91?city=%E5%8C%97%E4%BA%AC&cl'
'=false&fromSearch=true&labelWords=&suginput=',
'Cookie': '_ga=GA1.2.2027462165.1549021551; '
'user_trace_token=20190201194551-eca83af0-2616-11e9-bf71-525400f775ce; '
'LGUID=20190201194551-eca83da6-2616-11e9-bf71-525400f775ce; '
'Hm_lvt_4233e74dff0ae5bd0a3d81c6ccf756e6=1552308906,1552309027; '
'sensorsdata2015jssdkcross=%7B%22distinct_id%22%3A%2216b658ba77e43a-0b49c2e7e67767-345b4172-1049088'
'-16b658ba77f19c%22%2C%22%24device_id%22%3A%2216b658ba77e43a-0b49c2e7e67767-345b4172-1049088'
'-16b658ba77f19c%22%7D; fromsite=www.sogou.com; showExpriedIndex=1; showExpriedCompanyHome=1; '
'showExpriedMyPublish=1; hasDeliver=0; '
'gate_login_token=a9195dd4e24d8338a674e88c67d5cb87255e815ef5392f94; '
'index_location_city=%E5%8C%97%E4%BA%AC; privacyPolicyPopup=false; '
'JSESSIONID=ABAAABAAADEAAFI1CCC94E1CE3319EFB8139C27E0B58E37; _putrc=3C99087E77B24CBF; login=true; '
'unick=%E6%9B%B9%E6%B5%B7%E9%94%8B; _gid=GA1.2.217477905.1563105493; TG-TRACK-CODE=index_search; '
'X_MIDDLE_TOKEN=3902b1cf5aef0fa57fe9da7dfc446e95; '
'X_HTTP_TOKEN=1f9f0bcde170a48a7897013651c7753b685fbcebb4; _gat=1; '
'LGSID=20190714203951-7956efaa-a634-11e9-a4de-5254005c3644; PRE_UTM=; PRE_HOST=; '
'PRE_SITE=https%3A%2F%2Fwww.lagou.com%2Futrack%2FtrackMid.html%3Ff%3Dhttps%253A%252F%252Fwww.lagou'
'.com%252Fjobs%252Flist%255F%2525E8%252587%2525AA%2525E5%25258A%2525A8%2525E5%25258C%252596%2525E6'
'%2525B5%25258B%2525E8%2525AF%252595%2525E5%2525B7%2525A5%2525E7%2525A8%25258B%2525E5%2525B8%252588'
'%253Fcity%253D%2525E5%25258C%252597%2525E4%2525BA%2525AC%2526cl%253Dfalse%2526fromSearch%253Dtrue'
'%2526labelWords%253D%2526suginput%253D%26t%3D1563107975%26_ti%3D1; '
'PRE_LAND=https%3A%2F%2Fwww.lagou.com%2Fjobs%2Flist_%25E8%2587%25AA%25E5%258A%25A8%25E5%258C%2596'
'%25E6%25B5%258B%25E8%25AF%2595%25E5%25B7%25A5%25E7%25A8%258B%25E5%25B8%2588%3Fcity%3D%25E5%258C'
'%2597%25E4%25BA%25AC%26cl%3Dfalse%26fromSearch%3Dtrue%26labelWords%3D%26suginput%3D; '
'LGRID=20190714203951-7956f178-a634-11e9-a4de-5254005c3644; '
'SEARCH_ID=59e7a95248a741e894cff8a0bd6f9967'
}
return headers
def Data():
data = {
'first': True,
'pn': 1,
'kd': '分布式存储'
}
return data
def laGou():
urllib3.disable_warnings()
r = requests.post(
url='https://www.lagou.com/jobs/positionAjax.json?city=%E5%8C%97%E4%BA%AC&needAddtionalResult=false',
data=Data(),
headers=Headers(),
verify=False
)
print(r.text)
json.dump(r.json(), open('lagou.json', 'w'))
def dataAnalysis():
positions = []
data = json.load(open('lagou.json', 'r', encoding='utf-8'))
# 获取招聘公司的职位
for i in range(15):
company = data['content']['positionResult']['result'][i]['companyFullName']
salary = data['content']['positionResult']['result'][i]['salary']
positions.append({
'company': company,
'salary': salary
})
company = list(map(lambda x: x['company'], positions))
salary = list(map(lambda x: x['salary'], positions))
salaryMax = []
# 获取最高薪资
for item in salary:
salaryMax.append(int(str(item.split('-')[1]).split('k')[0]))
bar = Bar(init_opts=opts.InitOpts(theme=ThemeType.LIGHT))
bar.set_global_opts(title_opts=opts.TitleOpts(title="拉勾网薪资数据分析"),
legend_opts=opts.LegendOpts(is_show=True))
bar.add_xaxis(company)
bar.add_yaxis('分布式存储薪资', salaryMax)
bar.render('lagou.html')
if __name__ == '__main__':
laGou()
dataAnalysis()
执行后的一个名为“lagou.json”的json文件和一个lagou.html的html文件。
{"requestId":null,"resubmitToken":null,"msg":null,"success":true,"content":{"hrInfoMap":{"4299715":{"userId":5887554,"canTalk":true,"phone":null,"positionName":"HRD","receiveEmail":null,"portrait":null,"userLevel":"G1","realName":"melody"},"5839482":{"userId":5050411,"canTalk":true,"phone":null,"positionName":"招聘经理","receiveEmail":null,"portrait":null,"userLevel":"G1","realName":"linda陈"},"5747027":{"userId":3863793,"canTalk":true,"phone":null,"positionName":"","receiveEmail":null,"portrait":null,"userLevel":"G1","realName":"孙大伟"},"5752754":{"userId":5093020,"canTalk":true,"phone":null,"positionName":"招聘","receiveEmail":null,"portrait":"i/image2/M01/EB/6A/CgotOVx4nHWAKq-gAABQVC_yszs966.jpg","userLevel":"G1","realName":"京东云"},"5823870":{"userId":6686136,"canTalk":true,"phone":null,"positionName":null,"receiveEmail":null,"portrait":null,"userLevel":"G1","realName":"likexin"},"5494516":{"userId":8751754,"canTalk":true,"phone":null,"positionName":"","receiveEmail":null,"portrait":null,"userLevel":"G1","realName":"hexiaomiao"},"6084759":{"userId":3924817,"canTalk":true,"phone":null,"positionName":"HR","receiveEmail":null,"portrait":"i/image2/M01/EE/1A/CgoB5lx8k0WAQyWYAAMZBLVCUWQ17.jpeg","userLevel":"G1","realName":"Shirley"},"6106897":{"userId":6310568,"canTalk":true,"phone":null,"positionName":"Recruiter","receiveEmail":null,"portrait":"i/image2/M01/98/71/CgotOVu_Ck-AdVQaAAI_HZNf8tA61.jpeg","userLevel":"G1","realName":"Amphe"},"4111155":{"userId":801571,"canTalk":true,"phone":null,"positionName":"HR","receiveEmail":null,"portrait":"i/image2/M01/05/9A/CgotOVyUj86AGcNiAANZZwoYALY616.png","userLevel":"G1","realName":"Xiaoyan"},"6106800":{"userId":5166430,"canTalk":true,"phone":null,"positionName":"滴滴招聘经理","receiveEmail":null,"portrait":"i/image2/M00/1E/B7/CgoB5loLt3aAfInfAAExZWekTPQ490.jpg","userLevel":"G1","realName":"Hank"},"5152897":{"userId":2081,"canTalk":true,"phone":null,"positionName":"招聘主管","receiveEmail":null,"portrait":"i/image2/M01/C1/A3/CgoB5lwvHE2AcIJRAAAvWDWt4VU717.png","userLevel":"G1","realName":"linda"},"5663302":{"userId":6403724,"canTalk":true,"phone":null,"positionName":"HRBP","receiveEmail":null,"portrait":null,"userLevel":"G1","realName":"Emily"},"6074921":{"userId":5170329,"canTalk":true,"phone":null,"positionName":"招聘HR","receiveEmail":null,"portrait":"i/image3/M00/39/A0/Cgq2xlqrWYuAahuHAAAvIifnHHc710.png","userLevel":"G1","realName":"和瑞丽"},"5865634":{"userId":4606951,"canTalk":true,"phone":null,"positionName":"招聘","receiveEmail":null,"portrait":null,"userLevel":"G1","realName":"刘女士"},"5801507":{"userId":8661865,"canTalk":true,"phone":null,"positionName":"HR","receiveEmail":null,"portrait":"i/image2/M01/AC/0D/CgotOVvutNeAJUxLAAYZM66FKKA509.jpg","userLevel":"G1","realName":"Samul"}},"pageNo":1,"positionResult":{"positionName":null,"industryField":null,"totalCount":285,"companySize":null,"resultSize":15,"queryAnalysisInfo":{"positionName":"分布式存储","companyName":null,"jobNature":null,"industryName":null,"usefulCompany":false},"strategyProperty":{"name":"dm-csearch-useLayeredDisplay","id":0},"hotLabels":null,"hiTags":null,"categoryTypeAndName":{"3":null},"locationInfo":{"city":"北京","district":null,"queryByGisCode":false,"businessZone":null,"locationCode":null,"isAllhotBusinessZone":false},"result":[{"companyId":42680,"companyShortName":"SmartX","createTime":"2019-07-15 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可视化的html文件：
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可视化效果如下图：
AtomGit 是由开放原子开源基金会联合 CSDN 等生态伙伴共同推出的新一代开源与人工智能协作平台。平台坚持“开放、中立、公益”的理念，把代码托管、模型共享、数据集托管、智能体开发体验和算力服务整合在一起，为开发者提供从开发、训练到部署的一站式体验。
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