书签：如何获取要运行书签的页面的 html？

Question

javascript bookmarklets can use document object to get selected text or links. But how do I get the whole html?

I want to get the whole html so that I could retrieve specific data between html tags.

for eg I want to get the following text from this page http://www.linguee.de/englisch-deutsch/uebersetzung/futile.html

futile;

zwecklos;

There is no manual removal or exception for end customers at LEVEL 3 - Requests are futile;

Es gibt weder manuelle Entfernungen noch Ausnahmen für Endkunden aus LEVEL 3. Anfragen sind absolut zwecklos;

after getting the html by document.documentElement.innerHTML how do I get the above specific text from the innerhtml?

Answer 1

document.documentElement.innerHTML

Answer 2

You can get the tagname with element.tagName , and any attribute of that tag with element.getAttribute('attributename') . Would that get you the data you are trying to get?

If not, can you give us an example of the data you are trying to get?

Answer 3

You can check my bookmarklets as example . There are some features: 1. It is use post request, so any size of data can be send to server 2. It is use user selection from page 3. It is extract page text content using boilerpipe library.

<a class="button" href="javascript:function post_to_url(path,params,method){method=method||'post';var form=document.createElement('form');form.setAttribute('method', method);form.setAttribute('action',path);form.setAttribute('accept-charset','UTF-8');for(var key in params){var hiddenField=document.createElement('input');hiddenField.setAttribute('type','hidden');hiddenField.setAttribute('name',key);hiddenField.setAttribute('value',params[key]);form.appendChild(hiddenField);}document.body.appendChild(form); form.submit();};var t=((window.getSelection&&window.getSelection())||(document.getSelection&&document.getSelection())||(document.selection&&document.selection.createRange&&document.selection.createRange().text)||location.href);if(t=='')t=location.href;post_to_url('http://g-calendar.appspot.com/analyze/analyze', {withKeywords:'true', message:t, sumSize:5, return_type:'list', title:document.title, url:location.href}, 'post')">
    Summarise
</a>