为什么我的 Python 程序无法运行？它使用 HTTP 标头

Question

编辑：我更改了代码，但它仍然不起作用！我使用答案中的链接来执行此操作，但它不起作用！

为什么这不起作用？当我跑步时，要跑很长时间而且永远跑不完！

import urllib
import urllib2



url = 'https://www.locationary.com/index.jsp?ACTION_TOKEN=tile_loginBar_jsp$JspView$LoginAction'



values = {'inUserName' : 'USER',
          'inUserPass' : 'PASSWORD'}
data = urllib.urlencode(values)


req = urllib2.Request(url, data)

req.add_header('Host', 'www.locationary.com')
req.add_header('User-Agent', 'Mozilla/5.0 (Windows NT 6.1; rv:8.0) Gecko/20100101 Firefox/8.0')
req.add_header('Accept', 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8')
req.add_header('Accept-Language', 'en-us,en;q=0.5')
req.add_header('Accept-Encoding','gzip, deflate')
req.add_header('Accept-Charset','ISO-8859-1,utf-8;q=0.7,*;q=0.7')
req.add_header('Connection','keep-alive')
req.add_header('Referer','http://www.locationary.com/')
req.add_header('Cookie','site_version=REGULAR; __utma=47547066.1079503560.1321924193.1322707232.1324693472.36; __utmz=47547066.1321924193.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); nickname=jacob501; locaCountry=1033; locaState=1795; locaCity=Montreal; jforumUserId=1; PMS=1; TurnOFfTips=true; Locacookie=enable; __utma=47547066.1079503560.1321924193.1322707232.1324693472.36; __utmz=47547066.1321924193.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); nickname=jacob501; PMS=1; __utmb=47547066.15.10.1324693472; __utmc=47547066; JSESSIONID=DC7F5AB08264A51FBCDB836393CB16E7; PSESSIONID=28b334905ab6305f7a7fe051e83857bc280af1a9; __utmc=47547066; __utmb=47547066.15.10.1324693472; ACTION_RESULT_CODE=ACTION_RESULT_FAIL; ACTION_ERROR_TEXT=java.lang.NullPointerException')
req.add_header('Content-Type','application/x-www-form-urlencoded')



#user_agent = 'Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)'
#headers = { 'User-Agent' : user_agent }



response = urllib2.urlopen(req)
page = response.read()


print page

Answer 1

远程服务器（位于 www.locationary.com 的服务器）正在等待基于 Content-Type 和 Content- 的 HTTP POST 请求的内容长度标头。由于您从未真正发送所述等待的数据，因此远程服务器会等待 - read() 也是如此 - 直到您这样做。

---

我需要知道如何发送我的 http post 请求的内容。

好吧，您实际上需要在请求中发送一些数据。请参阅：

• urllib2 - 缺失的手册
• 如何将 HTTP POST 值发送到一个使用 Python 的 (PHP) 页面？

---

最终的“工作”版本：

import urllib
import urllib2

url = 'https://www.locationary.com/index.jsp?ACTION_TOKEN=tile_loginBar_jsp$JspView$LoginAction'

values = {'inUserName' : 'USER',
          'inUserPass' : 'PASSWORD'}

data = urllib.urlencode(values)
req = urllib2.Request(url, data)

req.add_header('Host', 'www.locationary.com')
req.add_header('User-Agent', 'Mozilla/5.0 (Windows NT 6.1; rv:8.0) Gecko/20100101 Firefox/8.0')
req.add_header('Accept', 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8')
req.add_header('Accept-Language', 'en-us,en;q=0.5')
req.add_header('Accept-Charset','ISO-8859-1,utf-8;q=0.7,*;q=0.7')
req.add_header('Connection','keep-alive')
req.add_header('Referer','http://www.locationary.com/')
req.add_header('Cookie','site_version=REGULAR; __utma=47547066.1079503560.1321924193.1322707232.1324693472.36; __utmz=47547066.1321924193.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); nickname=jacob501; locaCountry=1033; locaState=1795; locaCity=Montreal; jforumUserId=1; PMS=1; TurnOFfTips=true; Locacookie=enable; __utma=47547066.1079503560.1321924193.1322707232.1324693472.36; __utmz=47547066.1321924193.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); nickname=jacob501; PMS=1; __utmb=47547066.15.10.1324693472; __utmc=47547066; JSESSIONID=DC7F5AB08264A51FBCDB836393CB16E7; PSESSIONID=28b334905ab6305f7a7fe051e83857bc280af1a9; __utmc=47547066; __utmb=47547066.15.10.1324693472; ACTION_RESULT_CODE=ACTION_RESULT_FAIL; ACTION_ERROR_TEXT=java.lang.NullPointerException')
req.add_header('Content-Type','application/x-www-form-urlencoded')

response = urllib2.urlopen(req)
page = response.read()

print page

• 不要显式设置 Content-Length 标头
• 删除 req.add_header('Accept-Encoding','gzip, deflate')< /code> 行，这样响应就不必解压缩（或者 - 留给读者的练习 - 自己解压缩）