How to select an element in Jsoup using its html content? - java

I want to select an element in Jsoup using its html content.
Example: LOCATION:
How can i do it. I couldn't find any approriate selector methods directly. Is there any work around available?

Using Jsoup library you can parse from value from html using name, ID or class of element.
String html = "<html><head><title>Title</title></head> <body><div id='location'>Mumbai, India</div></body></html>";
Document document= Jsoup.parse(html);
String content = document.getElementById("location").outerHtml();
Happy Coding :-)

Related

How to get URL of video or audio from a website with jsoup

i'm using jsoup to parse all the HTML from this website: news
I can fetch all the tilte, description with select some Elements I need. But can't find the video URL element to select. How can i get the video link with jsoup or another kind of library. Thanks!
Maybe I misunderstood your question, but can't you search for <video> elements using JSoup?
All <video> elements have a so-called src attribute.
Maybe try something like this?
// HTML from your webpage
final var html = "this should hold your HTML";
// Deconstruct into element objects
final var document = Jsoup.parse(html);
// Use CSS to select the first <video> element
final var videoElement = document.select("video").first();
// Grab the video's URL by fetching the "src" attribute
final var src = videoElement.attr("src");
Now I did not thoroughly check the website you linked. But some websites insert videos using JavaScript. If this website inserts a video tag after loading, you might be out of luck as Jsoup does not run JavaScript. It only runs on the initial HTML fetched from the page.
Jsoup is an HTML parser, which is why it only parses HTML and not, say, generated HTML.

Open Link in HTML with JSOUP

I have a table in a HTML page in which I have to iterate through to open the links into a next page where all the information is. In this page I extract any data I need and return to my basic page.
How do I change pages with the framework JSoup in Java? Is it actually possible?
If you look at the JSoup Cookbook, they have an example of getting all the links inside of an HTML element. Iterate the Elements from this example and do a Document doc = Jsoup.connect(<url from Elements>).get();. You can then do String htmlFromLink = doc.toString(); and get the HTML from the link.

Web crawler find the whole html code

Note that I am using java in eclipse and jsoup library.
My code is:
Document doc = null;
String crawUrl = this.getCrawlUrl();
doc = Jsoup.connect(crawUrl).get();
Elements hrefs2=doc.select("html");
System.out.println(hrefs2);
I am trying to get the whole html code of specific page but when there is something like div into div I am not getting it.
How can I get the whole html code from specific page?
You can try-
Document doc = Jsoup.connect(crawUrl).get();
System.out.println(doc.toString());

Find URLs in String with Jsoup

I have String value that is txt (not html) that contains urls:
Blabla http://www.example.com/foo1/ blabla
http://www.example.com/foo2/ blabla...
I need to grab all these urls from the string using Jsoup.
Is it possible?
No, Jsoup won't do this for you. Jsoup parses HTML tags, not arbitrary strings.
If you had an HTML document containing a bunch of link tags (<a href="http://example.com/page.html>link text</a>), you could use Jsoup to parse the tags and extract the href attribute.
If you just have a string with some links, you probably want to use regular expressions, as suggested in a comment by PeterMmm.

Extracting html tags based on attribute

I have a crawled page and I have retrieved html of the page into String object.
Now i want to parse this string and to extract all tags that have itemprop defined into an array that would be associative for example
String[] itemprops;
itemprops['title'] = "Some title";
itemprops['description'] = "Some description";
Can I do this with regex somehow or is there some library that can do this.
Look at JSoup. It's an HTML scraping and parsing library that's exactly what you want.
In your case, you can do something like:
Document doc = Jsoup.parse(HTMLString);
String title = doc.select("title").text();
String description = doc.select("meta[name=description]").attr("content");
The select() function uses CSS selectors to get elements.
Also make sure that the html which you use follows strict syntax. Because broken syntax may cause parsing exception or loss data.

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