Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
555 views
in Technique[技术] by (71.8m points)

xpath - Can't get the data using importXML from Dynamic Web Page?

The website is : https://www.futbin.com/18/player/2600/Ayhan/

I inspect the element and get the XPath which is: //*[@id="ps-lowest-1"]

Then I use:

=IMPORTXML("https://www.futbin.com/18/player/2600/Ayhan/","//*[@id='ps-lowest-1']")

To get the data which should be 2000

But instead it only shows: - on the sheet. No errors just doesn't show the data that I want it to. Is there anyway to get the data that I need?

Thanks

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

The Sheets command importXML reads only the HTML source of the page without executing any JavaScript on it. As you can see yourself by using "view source" in the browser, the source indeed has "-" in that span:

 <span class="price_big_right">
     <span id="ps-lowest-1">-</span>
 </span>

The actual numbers are loaded by some JavaScript file which then inserts them in that span. Neither importXML nor other Sheets functions can retrieve dynamically inserted data.

Sometimes, after inspecting the JS files, one can uncover the URL of source of data and try to import that; but this is a tedious reverse engineering exercise for each particular site.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...