Question

我遇到的问题 - 并尝试用Python解决 - 是为网站发出连续的POST请求（填写在线表单）（具体来说，是http://demo.travelportuniversalapi.com的API的免费在线演示）。到目前为止，我无法获得结果页面 - 现在已经有两天了。

我使用的代码是：

import sys
import urllib, urllib2, cookielib
from BeautifulSoup import BeautifulSoup
import re

class website:
    def __init__(self):
        self.host = 'demo.travelportuniversalapi.com'
        self.ua = 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:23.0) Gecko/20100101 Firefox/23.0'  
        self.session = cookielib.CookieJar() #session devine o instanta a obiectului cookielib
        pass     

    def get(self):
        try:
            url = 'http://demo.travelportuniversalapi.com/(S(cexfuhghvlzyzx5n0ysesra1))/Search' #this varies every 20 minutes
            data = None
            headers = {'User-Agent': self.ua}
            request = urllib2.Request(url, data, headers)
            self.session.add_cookie_header(request)
            response = urllib2.urlopen(request)
            self.session.extract_cookies(response, request)
            url = response.geturl()


            data = {'From': 'lhr', 'To': 'ams', 'Departure' : '9/4/2013','Return' : '9/6/2013'}
            headers = {'User-Agent': self.ua, "Content-type": "application/x-www-form-urlencoded; charset=UTF-8",
                       }            
            request = urllib2.Request(url, urllib.urlencode(data), headers, 20)
            self.session.add_cookie_header(request)
            response = urllib2.urlopen(request, timeout=30) #HTTP Error 404: Not Found - aici am eroare
            self.session.extract_cookies(response, request)                
        except urllib2.URLError as e:
            print >> sys.stderr, e
            return None

rt = website()
rt.get()

我在上次urllib2.Request收到的错误是HTTP错误404：未找到。我不确定我的饼干是否有效。

在浏览器中使用插件监控HTTP数据包我发现在broswer中发送POST时，我注意到以下标题：'X-Requested-With XMLHttpRequest' - 这是否相关？

连续的urllib2 POST给出了404

0 个答案: