我有一个小问题,我使用 axios 向我的 React 应用程序向网站发出了 Get 请求,然后我得到了 html 响应: responseData.data 。但是现在我想获取 responseData.data 中特定 div 的内容。例如这个:
<!DOCTYPE html>
<html class="devise-layout-html">
<head prefix="og: http://ogp.me/ns#">
</head>
<body class="ui_charcoal login-page application navless" data-page="sessions:new">
<div class="tab-content">
<div class="active login-box tab-pane" id="ldapmain" role="tabpanel">
<div class="login-body">
<form id="new_ldap_user" class="gl-show-field-errors" action="/users/auth/ldapmain/callback" accept-charset="UTF-8" method="post"><input name="utf8" type="hidden" value="✓" />
<input type="hidden" name="authenticity_token" value="V8qeuk9QAYk51gorLAobEYGvCMMuyPpuUKXAwtBm2Zw1b1/7BVibiPhRWI7aVrQBa2p+CkKLGCEbQV/UIxZmkA==" /><div class="form-group">
<label for="username">LDAP Username</label>
<input type="text" name="username" id="username" class="form-control top" title="This field is required." autofocus="autofocus" required="required" />
</div>
<div class="form-group">
<label for="password">Password</label>
<input type="password" name="password" id="password" class="form-control bottom" title="This field is required." required="required" />
</div>
<div class="remember-me checkbox">
<label for="remember_me">
<input type="checkbox" name="remember_me" id="remember_me" value="1" />
<span>Remember me</span>
</label>
</div>
<input type="submit" name="commit" value="Sign in" class="btn-save btn" />
</form>
</div>
</div>
</div>
</body>
</html>
我想访问这些数据:(<input type="hidden" name="authenticity_token" value="V8qeuk9QAYk51gorLAobEYGvCMMuyPpuUKXAwtBm2Zw1b1/7BVibiPhRWI7aVrQBa2p+CkKLGCEbQV/UIxZmkA==" />
价值)。是否可以 ?谢谢
您也可以尝试将其解析为 XML。使用例如这个 xml解析器
编辑:
在您的情况下,从特定标签属性获取值的最快方法是使用正则表达式:例如
/(<input type="hidden" name="authenticity_token")((.|\s|\v)*?)(\/>)/
将允许您value
从输入中提取属性
const htmlDocumentString = '...<input type="hidden" name="authenticity_token" value="V8qeuk9QAYk51gorLAobEYGvCMMuyPpuUKXAwtBm2Zw1b1/7BVibiPhRWI7aVrQBa2p+CkKLGCEbQV/UIxZmkA==" />...'
const reg = /(<input type="hidden" name="authenticity_token")((.|\s|\v)*?)(\/>)/
// The second group of regex match should contain value="..."
const vAttr = reg.exec(htmlDocumentString)[2]
// Time to extract content of the value attribute.
// The fastest way by using substring and character indexes like so
const value = vAttr.substring(vAttr.indexOf('"') + 1, vAttr.lastIndexOf('"'))
console.log(value) // [string] "V8qeuk9QAYk51gorLAob..."
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