我正在尝试使用beautilfulsoup来抓取一个网站。但是当我刮掉它时，我收到了一些错误
我收到的错误是：505|error|500|Invalid postback or callback argument. Event validation is enabled using <pages enableeventvalidation="true"></pages> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.|
我的代码是：
from bs4 import BeautifulSoup
import requests
import csv
final_data = []
url = "https://rera.cgstate.gov.in/Default.aspx"
def writefiles(alldata, filename):
with open ("./"+ filename, "w") as csvfile:
csvfile = csv.writer(csvfile, delimiter=",")
csvfile.writerow("")
for i in range(0, len(alldata)):
csvfile.writerow(alldata[i])
def getbyGet(url, values):
res = requests.get(url, data=values)
text = res.text
return text
def readHeaders():
global url
html = getbyGet(url, {})
soup = BeautifulSoup(html, "html.parser")
EVENTVALIDATION = soup.select("#__EVENTVALIDATION")[0]['value']
VIEWSTATE = soup.select("#__VIEWSTATE")[0]['value']
#VIEWSTATEGENERATOR = soup.select("#__VIEWSTATEGENERATOR")[0]["value"]
headers= {'Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
'Content-Type':'application/x-www-form-urlencoded',
'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0'}
formfields = {"__ASYNCPOST":"true",
"__EVENTARGUMENT":"",
"__EVENTTARGET":"" ,
"__EVENTVALIDATION":EVENTVALIDATION,
"__LASTFOCUS":"",
"__VIEWSTATE":VIEWSTATE,
"ApplicantType":"",
"Button1":"Search",
"District_Name":"0",
"DropDownList1":"0",
"DropDownList2":"0",
"DropDownList4":"0",
"DropDownList5":"0",
"group1":"on",
"hdnSelectedOption":"0",
"hdnSelectedOptionForContractor":"0",
"Mobile":"",
"Tehsil_Name":"0",
"TextBox1":"",
"TextBox2":"",
"TextBox3":"",
"TextBox4":"",
"TextBox5":"",
"TextBox6":"",
"ToolkitScriptManager1":"appr1|Button1",
"txt_otp":"",
"txt_proj_name":"",
"txtRefNo":"",
"txtRefNoForContractor":""}
s = requests.session()
res = s.post(url, data=formfields, headers=headers).text
soup = BeautifulSoup(res, "html.parser")
print(soup)
readHeaders()