jsoup - Set HTML


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Following example will showcase use of method to set, prepend or append html to a dom element after parsing an HTML String into a Document object.

Syntax

Document document = Jsoup.parse(html);
Element div = document.getElementById("sampleDiv");     
div.html("<p>This is a sample content.</p>");   
div.prepend("<p>Initial Text</p>");
div.append("<p>End Text</p>");   

Where

  • document - document object represents the HTML DOM.

  • Jsoup - main class to parse the given HTML String.

  • html - HTML String.

  • div - Element object represent the html node element representing anchor tag.

  • div.html() - html(content) method replaces the element's outer html with the corresponding value.

  • div.prepend() - prepend(content) method adds the content before the outer html.

  • div.append() - append(content) method adds the content after the outer html.

Description

Element object represent a dom elment and provides various method to set, prepend or append html to a dom element.

Example

Create the following java program using any editor of your choice in say C:/> jsoup.

JsoupTester.java

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;

public class JsoupTester {
   public static void main(String[] args) {
      String html = "<html><head><title>Sample Title</title></head>"
         + "<body>"
         + "<div id='sampleDiv'><a id='googleA' href='www.google.com'>Google</a></div>"       
         +"</body></html>";
      Document document = Jsoup.parse(html);

      Element div = document.getElementById("sampleDiv");
      System.out.println("Outer HTML Before Modification :\n"  + div.outerHtml());
      div.html("<p>This is a sample content.</p>");
      System.out.println("Outer HTML After Modification :\n"  + div.outerHtml());
      div.prepend("<p>Initial Text</p>");
      System.out.println("After Prepend :\n"  + div.outerHtml());
      div.append("<p>End Text</p>");
      System.out.println("After Append :\n"  + div.outerHtml());          
   }
}

Verify the result

Compile the class using javac compiler as follows:

C:\jsoup>javac JsoupTester.java

Now run the JsoupTester to see the result.

C:\jsoup>java JsoupTester

See the result.

Outer HTML Before Modification :
<div id="sampleDiv">
 <a id="googleA" href="www.google.com">Google</a>
</div>
Outer HTML After Modification :
<div id="sampleDiv">
 <p>This is a sample content.</p>
</div>
After Prepend :
<div id="sampleDiv">
 <p>Initial Text</p>
 <p>This is a sample content.</p>
</div>
After Append :
<div id="sampleDiv">
 <p>Initial Text</p>
 <p>This is a sample content.</p>
 <p>End Text</p>
</div>
Outer HTML Before Modification :
<span>Sample Content</span>
Outer HTML After Modification :
<span>Sample Content</span>


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