Daisy HTML Cleaner Framework Java Class Library Real Case Sharing
Daisy HTML Cleaner Framework Java Class Library Real Case Sharing
HTML is a common label language on the Internet, but sometimes when we extract the content from the webpage, we will encounter labels and other label interference, so we need to clean HTML.Daisy HTML Cleaner is a powerful Java class library that provides a simple and flexible method to clear the HTML tag and extract pure text content or specified HTML elements.
This article will share a practical case of using the DAISY HTML Cleaner framework to demonstrate how to clean the HTML content in Java in Java.
First of all, we need to introduce the dependencies of Daisy HTML Cleaner in the project, which can be added through Maven or other building tools.The following is Maven's dependency configuration:
<dependency>
<groupId>net.dankito.htmlcleaner</groupId>
<artifactId>daisy-htmlcleaner</artifactId>
<version>1.3.2</version>
</dependency>
Next, we will use Daisy HTML Cleaner to write a sample code, clean a HTML document and extract the text content in it.
import net.dankito.htmlcleaner.HtmlCleaner;
import net.dankito.htmlcleaner.HtmlDocument;
import net.dankito.htmlcleaner.attributes.AttributeTransformationResult;
import net.dankito.htmlcleaner.attributes.AttributeType;
import net.dankito.htmlcleaner.attributes.IAttributeValueTransformer;
import net.dankito.htmlcleaner.elements.TagTransformationResult;
import net.dankito.htmlcleaner.elements.TagType;
import net.dankito.htmlcleaner.elements.impl.Heading;
import net.dankito.htmlcleaner.elements.impl.JsoupElementResult;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
public class HtmlCleanerExample {
public static void main(String[] args) {
String html = "<html><head><title>Daisy HTML Cleaner Example</title></head>
" +
"<body><h1>Welcome to Daisy HTML Cleaner!</h1>
" +
"<p>This is an <b>example</b> HTML document.</p></body></html>";
HtmlCleaner htmlCleaner = new HtmlCleaner();
HtmlDocument cleanedDocument = htmlCleaner.cleanHtml(html);
// Extract the title content
Elements titleElements = cleanedDocument.select("title");
if (titleElements.size() > 0) {
Element titleElement = titleElements.get(0);
System.out.println("Title: " + titleElement.text());
}
// Extract the text content
Elements bodyElements = cleanedDocument.select("body");
if (bodyElements.size() > 0) {
Element bodyElement = bodyElements.get(0);
String textContent = bodyElement.text();
System.out.println("Text Content: " + textContent);
}
}
}
In this example code, we first created a string containing HTML content.Then, we instantly checked an HTMLCLEANER object and called its Cleanhtml () method to clean the HTML document.The cleaning document is stored in the HTMLDOCUMENT object.
Then, we use the Select () method to select the required HTML elements.In this example, we chose the title and text elements and extract their text content.
Finally, we print the title and text that we have extracted to the console.
Through this example, we show how to use the DAISY HTML Cleaner framework to clean the HTML document and extract the content.This class library provides many other functions, which can be customized as needed to meet the processing needs of various HTML content.
