python urllib 表单发布答案

【问题标题】：python urllib form postpython urllib 表单发布
【发布时间】：2014-12-07 18:00:39
【问题描述】：

<div id="login-section">
    <fieldset class="validation-group">
        <table id="navLgnMember" cellspacing="0" cellpadding="0" style="border-collapse:collapse;">
    <tr>
        <td>
                    <div id="login-user">
                        <div class="input" id="username-wrapper">
                            <div class="loginfield-label"><a href="/help" title="click for help logging in" style="color: White; text-decoration: none">Number / ID / Email</a></div>
                            <div class="input-field-small float-left submit-on-enter"><div class="left"></div><input name="ctl00$ctl01$navLgnMember$Username" type="text" maxlength="80" id="Username" title="Username" class="center" style="width:85px;" /><div class="right"></div></div>
                        </div>
                        <div class="input" id="password-wrapper">
                            <div class="loginfield-label">
                                Password</div>
                            <div class="input-field-small float-left submit-on-enter"><div class="left"></div><input name="ctl00$ctl01$navLgnMember$Password" type="password" id="Password" title="Password" class="center" title="Password" style="width:85px;" /><div class="right"></div></div>
                        </div>
                        <div id="login-wrapper">
                            <input type="submit" name="ctl00$ctl01$navLgnMember$Login" value="" onclick="javascript:WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions(&quot;ctl00$ctl01$navLgnMember$Login&quot;, &quot;&quot;, false, &quot;&quot;, &quot;https://tatts.com/tattersalls&quot;, false, false))" id="Login" class="button-login" />

                        </div>

如何从 urllib 提交此表单作为我拥有的当前代码：

import cookielib
import urllib
import urllib2


# Store the cookies and create an opener that will hold them
cj = cookielib.CookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))

# Add our headers
opener.addheaders = [('User-agent', 'RedditTesting')]

# Install our opener (note that this changes the global opener to the one
# we just made, but you can also just call opener.open() if you want)
urllib2.install_opener(opener)

# The action/ target from the form
authentication_url = 'https://tatts.com/tattersalls'

# Input parameters we are going to send
payload = {
  '_EVENTTARGET:' ''
  '__EVENTARGUMENT:' ''
  '__VIEWSTATE:' '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'
  '__PREVIOUSPAGE:' 'PnGXOHeTQRfdct4aw9jgJ_Padml1ip-t05LAdAWQvBe5-2i1ECm5zC0umv9-PrWPJIXsvg9OvNT2PNp99srtKpWlE4J-6Qp1mICoT3eP49RSXSmN6p_XiieWS68YpbKqyBaJrkmYbJpZwCBw0Wq3tSD3JUc1'
  '__EVENTVALIDATION:': '/wEdAAfZmOrHFYG4x80t+WWbtymCH/lQNl+1rLkmSESnowgyHVo7o54PGpUOvQpde1IkKS5gFTlJ0qDsO6vsTob8l0lt1XHRKk5WhaA0Ow6IEfhsMPG0mcjlqyEi79A1gbm2y9z5Vxn3bdCWWa28kcUm81miXWvi1mwhfxiUpcDlmGDs/3LMo4Y='
  'ctl00$ctl01$showUpgradeReminderHid:' 'false'
  'ctl00$ctl01$navLgnMember$Username:' 'x-tinct'
  'ctl00$ctl01$navLgnMember$Password:' '########'
  'ctl00$ctl01$navLgnMember$Login:'

  }

# Use urllib to encode the payload
data = urllib.urlencode(payload)

# Build our Request object (supplying 'data' makes it a POST)
req = urllib2.Request(authentication_url, data)

# Make the request and read the response
resp = urllib2.urlopen(req)
contents = resp.read()

print (resp)

从提交到 webfrom 的正确部分是一种公平的方式。

我正在尝试登录并创建一个会话，以便能够将更多的网络表单数据发布到网站的其他部分。

提前致谢。

【问题讨论】：

如果你不介意使用第三方模块，我建议requests，使用起来更方便。
我如何提交到 javascript 登录提交仍然是同样的问题
你对asp.net了解多少

标签： python urllib

【解决方案1】：

根据 SO 的另一篇帖子：Mechanize and Javascript，您有不同的选择，从在 Python 中模拟 javascript 脚本正在做什么，到使用完整的 Selenium 及其 Python 绑定。

如果您尝试使用简单的 Python 方式，我强烈建议您使用网络间谍（例如优秀的wireshark）来分析通过真实浏览器成功登录实际获取和发送的内容，以及您的 Python 模拟发送。

【讨论】：