无需询问用户和密码即可从网页和身份验证中获取<span>值
无需询问用户和密码即可从网页和身份验证中获取<span>值
提问于 2015-11-16 17:43:52
我在Windows上有这个视频监控软件，它有浏览器远程访问和用户/密码身份验证，在PC的IP上。(我也可以远程查看，因为我有公网IP)。
我检查了浏览器UI中的代码，并希望获得这些跨度值(liveCameraCount和totalCameraCount)：
我使用lime代码，这是工作，但回复如下：
None
None
ON 虽然它应该是
2
2
ON(我也尝试过使用time.sleep()让页面加载，但没有成功)
from bs4 import BeautifulSoup
import urllib
import urllib2
import base64
url = "http://my.pc.ip.address:port"
username = "myuser"
password = "mypass"
handle = urllib2.Request(url)
authheader = "Basic %s" % base64.encodestring('%s:%s' % (username,password))
data = urllib.urlopen(url)
soup = BeautifulSoup(data, "html.parser")
cameras = soup.findAll('span')
for span in cameras:
print span.string我也在尝试自动登录，而不是每次它都会问：
Enter username [for my.pc.ip.address:port]:------
Enter password for username at [for my.pc.ip.address:port]:-----编辑1：
好的。这很奇怪。如果我按下F12，我可以在发布的图像中看到里面的值，但如果我按下CRTL +U，我会看到这个代码(没有值)。我不明白：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script>
var isMobile = navigator.userAgent.match(/(iPhone|iPod|Android|BlackBerry)/);
if(isMobile){
window.location = '/mobile/';
}
</script>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Sighthound</title>
<link rel="stylesheet" href="/css/sighthound-desktop.css" />
<style type="text/css">
#liveTime{
margin-left: 6px;
}
.views {
margin-right: 6px;
}
</style>
<!-- Favicons and touch icons -->
<!-- For retina-display iPads -->
<link href="/img/apple-touch-icon-xlarge.png" rel="apple-touch-icon- precomposed" sizes="144x144" type="image/png"/>
<!-- For retina-display iPhones -->
<link href="/img/apple-touch-icon-large.png" rel="apple-touch-icon-precomposed" sizes="114x114" type="image/png"/>
<!-- For iPad 1 -->
<link href="/img/apple-touch-icon-medium.png" rel="apple-touch-icon-precomposed" sizes="72x72" type="image/png"/>
<!-- For iPhone 3G, iPod Touch and Android -->
<link href="/img/apple-touch-icon-small.png" rel="apple-touch-icon-precomposed" type="image/png"/>
<!-- For Nokia -->
<link href="/img/apple-touch-icon-small.png" rel="shortcut icon"/>
<!-- For everything else -->
<link href="/img/favicon.png" rel="shortcut icon" type="image/png"/>
<link href="/img/favicon.ico" rel="shortcut icon" type="image/x-icon"/>
</head>
<body>
<script type="text/javascript"> if (!window.console) console = {log: function() {}}; </script>
<script src="/js/jquery-2.0.3.min.js"></script>
<script src="/js/handlebars.js"></script>
<script src="/js/underscore-min.js"></script>
<script src="/js/handlebars-extras.js"></script>
<script src="/js/xmlrpc.js"></script>
<script src="/js/sighthoundxmlrpc.js"></script>
<script src="/js/sighthound.js"></script>
<script src="/js/purl.js"></script>
<script src="/js/moment.min.js"></script>
<script src="/js/camera_display.js"></script>
<script src="/js/all_cameras_control.js"></script>
<script src="/js/common.js"></script>
<div class="container">
<div class="header">
<div class="logo"><img src="img/logo.png" height="80" /></div><!-- End of Logo -->
<div class="pageNav buttonBar">
<a href="#" class="button active">Cameras</a>
<a href="clips.html" class="button">Clips</a>
</div><!-- End of Page Nav -->
<div class="on-off buttonBar">
<a id="allOffButton" href="#" class="button">Off</a>
<a id="allOnButton" href="#" class="button">On</a>
</div><!-- End of Buttons -->
<div class="cameras">
Cameras<br />
<strong> <span id="liveCameraCount"></span> / <span id="totalCameraCount"></span> <span class="expressive">ON</span></strong>
</div><!-- Camera -->
</div><!-- End of Header -->
<div class="content">
<div class="contextMenu">
<div id="liveTime" class="date"></div><!-- End of Date -->
<!--<div class="fullscreen buttonBar">
<a href="" class="buttonIcon"><img src="img/iconFullscreen.png" width="18" /></a>
</div>--><!-- End of Context Fullscreen -->
<div class="views buttonBar">
<!--<a id="view1up" href="#" class="button viewButton"<img src="img/icon1upBlue.png" /></a>-->
<a id="view2up" href="#" class="button viewButton"><img src="img/icon2upBlue.png" /></a>
<a id="view3up" href="#" class="button viewButton"><img src="img/icon3upBlue.png" /></a>
<a id="view4up" href="#" class="button active viewButton"><img src="img/icon4upWhite.png" /></a>
</div><!-- End of Context Views -->
</div><!-- End of Context -->
<div id="cameraGrid"></div>
<script id="cameraGridTemplate" type="text/x-handlebars-template">
{{#everyNth cameras {(columns)}}}
{{#if isModZeroNotFirst}}
</div>
{{/if}}
{{#if isModZero}}
<div class="videos">
{{/if}}
<div class="video-{(columns)}up cameraVideo">
<a href="live.html?camera={{name}}&live={{live}}&cameraindex={{index}}">
<div class="videoImgContainer"
data-camera_index="{{index}}">
<!-- Image stream content is built by camera_display.js -->
</div>
<div class="cameraTitle">
<span>{{name}}<span>
</div>
</a>
</div>
{{#if isLast}}
</div>
{{/if}}
{{/everyNth}}
</script>
</div><!-- End of Content -->
</div><!-- End of Container -->
<script src="/js/index.js" type="text/javascript"></script>
</body>
</html>回答 1
Stack Overflow用户
发布于 2015-11-16 18:30:40
您可以尝试将string替换为text，如下所示：
data = """<strong>
<span id="liveCameraCount">2</span>
" / "
<span id="totalCameraCount">2</span>
<span class="expressive">ON</span>
</strong>
</div>
"""
from bs4 import BeautifulSoup
soup = BeautifulSoup(data, "html.parser")
for span in soup.findAll('span'):
print span.text这将为您的小示例显示以下内容：
2
2
ON对于完整的超文本标记语言，前两个<span>是空的，因此将打印空字符串。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/33732321
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