[英]HtmlUnit webscraping Anchor tag with dropdown link that has JavaScript
[英]How can I link to an anchor tag that doesn't exist until the Javascript has created it?
我的頁面有一組<div>
元素,每個頁面都有一個與之關聯的錨標記。 看起來像這樣:
<a name="anchor-0"></a>
<div id="div0">Some stuff</div>
<a name="anchor-1"></a>
<div id="div1">More stuff</div>
<a name="anchor-2"></a>
<div id="div2">Yet more stuff</div>
問題在於這組<div>
和<a>
標記是由Javascript生成的,因此直到創建頁面后它們才存在。 當我創建這樣的鏈接時:
http://www.mywebsite.com/mypage.html#anchor-2
...它會加載頁面,但不會跳轉到anchor-2
位置,該位置僅在瀏覽器有時間執行生成該頁面的Javascript后的一段時間才會創建。
Javascript生成瀏覽器后,如何使瀏覽器移動到選定的定位器標簽位置?
本質上,這是生成HTML的Javascript的樣子:
function init() {
gapi.client.setApiKey('xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx');
gapi.client.load('blogger', 'v2', function() {
var request = gapi.client.blogger.posts.list({
'blogId': 'xxxxxxxxxxxxxxxxxxxxxxxx',
'fields': 'items(content,title)'
});
request.execute(function(response) {
var main = document.getElementById("main");
var anchor = 0;
for (var i = 0; i < response.items.length; i++)
{
var Div = document.createElement("div")
$(Div).append(response.items[i].title);
$(main).append(Div);
anchor = document.createElement("a");
anchor.name = "anchor-" + anchor;
anchor = anchor +1;
}
});
});
}
創建元素后,您可以執行以下操作:
location.hash = "#anchor-2";
element = document.getElementById('your_element-id');
element.scrollIntoView();
通過執行以下操作從url獲取哈希值:
var hashVal = window.location.hash.substr(1);
//then jump to that hash
location.hash = "#" + hashVal;
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