爬虫练习二(拉勾网投递简历)

一、流程分析

 第一步：访问登陆页,拿到X_Anti_Forge_Token，X_Anti_Forge_Code
 1、请求url:https://passport.lagou.com/login/login.html
 2、请求方法:GET
 3、请求头: User-agent
 
 第二步：登陆
 1、请求url:https://passport.lagou.com/login/login.json
 2、请求方法:POST
 3、请求头:
    cookie
    User-agent
    Referer:https://passport.lagou.com/login/login.html
    X-Anit-Forge-Code:53165984
    X-Anit-Forge-Token:3b6a2f62-80f0-428b-8efb-ef72fc100d78
    X-Requested-With:XMLHttpRequest
 4、请求体：
 isValidate:true
 username:18611453110
 password:70621c64832c4d4d66a47be6150b4a8e
 request_form_verifyCode:''
submit:''

第三步：授权
1.请求url::https://passport.lagou.com/grantServiceTicket/grant.html
2.请求方法:GET
3.请求头：User-agent
           Referer:https://passport.lagou.com/login/login.html

第四步：验证

第五步：筛选职位信息
1.请求url:https://www.lagou.com/jobs/list_java%E9%AB%98%E7%BA%A7%E5%BC%80%E5%8F%91
2.请求方法：GET
3.请求头:User-Agent
4.请求参数:
   # gj:3年及以下
   # px:default
   # yx:25k-50k
   # city:北京

第六步：
#请求url：https://www.lagou.com/jobs/positionAjax.json
#请求方法：POST
#请求头
#    Referer
#    User-Agent
#请求体：
    # first:true
    # pn:1
    # kd:java高级开发
#请求参数
# params={
#      'gj': '3年及以下',
#      'px': 'default',
#      'yx': '25k-50k',
#      'city': '北京',
#     'needAddtionalResult':False,
#     'isSchoolJob':0
# }

 第七步：访问详情页，拿到X_Anti_Forge_Token，X_Anti_Forge_Code
    # 请求url：详情页地址
    # 请求方式：GET
    # 请求头：User-Agent

 二、代码实现

import requests
import re
from urllib.parse import urlencode
session = requests.session()
r1 = session.get(
    "https://passport.lagou.com/login/login.html",
    headers = {
        "User-Agent":"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.108 Safari/537.36Name",
    }
)
X_Anit_Forge_Code  = re.findall("X_Anit_Forge_Code ='(.*?)'",r1.text,re.S)
X_Anit_Forge_Token = re.findall("X_Anit_Forge_Token ='(.*?)'",r1.text,re.S)
r2 = session.post(
    "https://passport.lagou.com/login/login.json",
    headers = {
        "User-Agent":"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.108 Safari/537.36Name",
        "Referer":"https://passport.lagou.com/login/login.html",
        "X-Anit-Forge-Code":X_Anit_Forge_Code,
        "X-Anit-Forge-Token":X_Anit_Forge_Token,
        "X-Requested-With":"XMLHttpRequest"
    },
    data={
        "isValidate": True,
        'username': '18611453110',
        'password': '70621c64832c4d4d66a47be6150b4a8e',
        'request_form_verifyCode': '',
        'submit': ''
    }
)
r3 = session.get(
    "https://passport.lagou.com/grantServiceTicket/grant.html",
    headers = {
        "User-Agent": "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.108 Safari/537.36Name",
        'Referer': 'https://passport.lagou.com/login/login.html',
    }
)
r4 = session.get(
    'https://www.lagou.com/resume/myresume.html',
    headers = {
        "User-Agent": "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.108 Safari/537.36Name",
    }
)

print('18611453110' in r4.text)

# ============================
# res = urlencode({"k":"java高级开发"},encoding="utf-8").split("=")[-1]
# url = "https://www.lagou.com/jobs/list_"+res
# r5 =session.get(url,
#             headers={
#                     "User-Agent": "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.108 Safari/537.36Name",
#                 },
#              params={
#                      'gj': '3年及以下',
#                      'px': 'default',
#                      'yx': '25k-50k',
#                      'city': '北京'
#                 }
#          ) #按照套路进行，结果取不到值，因为人家发的是ajax请求获取的数据，所以选择了r6的方式
res = urlencode({"k":"java高级开发"},encoding="utf-8").split("=")[-1]
url = "https://www.lagou.com/jobs/list_"+res
r6 = session.post(
    'https://www.lagou.com/jobs/postionAjax.json',
    headers = {
        'Referer': url,
        "User-Agent": "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.108 Safari/537.36Name",
    },
    data = {
        "first":True,
        "pn":1,
        "kd":"java高级开发"
    },
    params = {
        "gj":"3年及以下",
        "gx":"default",
        "yx":"15k-25k",
        "city":"北京",
        "needAddtionResult":False,
        "isSchoolJob":0
    }
)
from pprint import pprint
# print(r6.json())
comapines_list=r6.json()['content']['positionResult']['result']
for comapiny in comapines_list:
    positionId=comapiny['positionId']
    company_link='https://www.lagou.com/jobs/{pos_id}.html'.format(pos_id=positionId)
    companyShortName = comapiny['companyShortName']
    positionName = comapiny['positionName']
    salary = comapiny['salary']
    print('''
    详情连接:%s
    公司名：%s
    职位名：%s
    薪资：%s
    ''' %(company_link,companyShortName,positionName,salary))
    r7=session.get(company_link,
                headers={
                    'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36',
                }
                )
    X_Anti_Forge_Token = re.findall("X_Anti_Forge_Token = '(.*?)'", r7.text, re.S)[0]
    X_Anti_Forge_Code = re.findall("X_Anti_Forge_Code = '(.*?)'", r7.text, re.S)[0]
    # print(X_Anti_Forge_Token,X_Anti_Forge_Code)


    session.post('https://www.lagou.com/mycenterDelay/deliverResumeBeforce.json',
                 headers={
                     'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36',
                     'Referer': company_link,
                     'X-Anit-Forge-Code': X_Anti_Forge_Code,
                     'X-Anit-Forge-Token': X_Anti_Forge_Token,
                     'X-Requested-With': 'XMLHttpRequest'
                 },
                 data={
    'positionId':positionId,
    'type':1,
    'force':True
                 }
                 )
    print('%s 投递成功' %(companyShortName))