Question

stackoverflow上已有很多好的资源，但我仍然遇到问题。我访问了这些来源：

我正试图访问http://www.latax.state.la.us/Menu_ParishTaxRolls/TaxRolls.aspx并选择一个教区。我相信这会强制发布一个帖子，并允许我选择一年，再次发布，并允许更多选择。我按照上述来源以不同的方式编写了我的脚本，并且未能成功提交网站以允许我输入一年。

我当前的代码

import urllib
from bs4 import BeautifulSoup
import mechanize

headers = [
    ('Accept','text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8'),
    ('Origin', 'http://www.indiapost.gov.in'),
    ('User-Agent', 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.17 (KHTML, like Gecko)  Chrome/24.0.1312.57 Safari/537.17'),
    ('Content-Type', 'application/x-www-form-urlencoded'),
    ('Referer', 'http://www.latax.state.la.us/Menu_ParishTaxRolls/TaxRolls.aspx'),
    ('Accept-Encoding', 'gzip,deflate,sdch'),
    ('Accept-Language', 'en-US,en;q=0.8'),
]

br = mechanize.Browser()
br.addheaders = headers

url = 'http://www.latax.state.la.us/Menu_ParishTaxRolls/TaxRolls.aspx'

response = br.open(url)
# first HTTP request without form data
soup = BeautifulSoup(response)
# parse and retrieve two vital form values
viewstate = soup.findAll("input", {"type": "hidden", "name": "__VIEWSTATE"})
eventvalidation = soup.findAll("input", {"type": "hidden", "name": "__EVENTVALIDATION"})

formData = (
    ('__EVENTVALIDATION', eventvalidation[0]['value']),
    ('__VIEWSTATE', viewstate[0]['value']),
    ('__VIEWSTATEENCRYPTED',''),

)



try:
    fout = open('C:\\GIS\\tmp.htm', 'w')
except:
    print('Could not open output file\n')

fout.writelines(response.readlines())
fout.close()

我也在shell中尝试了这个，我输入的内容加上我收到的内容（经过修改以减少批量）可以找到http://pastebin.com/KAW5VtXp

无论如何，我尝试更改Parish下拉列表中的值并发布我将被带到网站管理员登录页面。

我接近这个正确的方法吗？任何想法都会非常有用。

谢谢！

Answer 1

我最终使用了硒。

from selenium import webdriver
from selenium.webdriver.common.keys import Keys

driver = webdriver.Firefox()
driver.get("http://www.latax.state.la.us/Menu_ParishTaxRolls/TaxRolls.aspx")
elem = driver.find_element_by_name("ctl00$ContentPlaceHolderMain$ddParish")
elem.send_keys("TERREBONNE PARISH")
elem.send_keys(Keys.RETURN)

elem = driver.find_element_by_name("ctl00$ContentPlaceHolderMain$ddYear")
elem.send_keys("2013")
elem.send_keys(Keys.RETURN)

elem = driver.find_element_by_id("ctl00_ContentPlaceHolderMain_rbSearchField_1")
elem.click()

APN = 'APN # here'
elem = driver.find_element_by_name("ctl00$ContentPlaceHolderMain$txtSearch")
elem.send_keys(APN)
elem.send_keys(Keys.RETURN)

# Access the PDF
elem = driver.find_element_by_link_text('Generate Report')
elem.click()
elements = driver.find_elements_by_tag_name('a')
elements[1].click()

在python中浏览网站，抓取并发布

1 个答案: