Use JODD LAGARTO to analyze HTML documents
Use JODD LAGARTO to analyze HTML documents
Jodd Lagarto is a lightweight Java library that is specifically used to analyze and operate HTML documents.It provides many convenient methods and operations to handle the structure and content of the HTML document.Here are some examples of using JODD LAGARTO to analyze HTML documents.
1. Add Maven dependence
First, you need to add Jodd Lagarto to your Maven project.Add the following dependencies to the pom.xml file:
<dependency>
<groupId>org.jodd</groupId>
<artifactId>jodd-lagarto</artifactId>
<version>5.0.10</version>
</dependency>
2. Analyze the HTML document
It is very simple to use JODD LAGARTO to analyze the HTML document.First of all, you need to create a LagartodomBuilder instance and pass the HTML document to the analytical HTML document as a parameter.
String html = "<html><body><h1>Hello, World!</h1></body></html>";
LagartoDOMBuilder domBuilder = new LagartoDOMBuilder();
Document document = domBuilder.parse(html);
3. Traversing HTML node
Once you analyze the HTML document, you can traverse its nodes and operate them.The following is a simple example, demonstrating how to traverse all HTML elements:
ElementsIterator elementsIterator = document.getHtmlElement().getElementsIterator();
while (elementsIterator.hasNext()) {
Tag tag = elementsIterator.next();
System.out.println("Tag: " + tag.getName());
}
4. Get HTML content
You can use Jodd Lagarto to get the content in the HTML document.For example, to get the page title:
Element titleElement = document.selectFirst("title");
String title = titleElement == null ? "" : titleElement.getTextContent();
System.out.println("Title: " + title);
5. Modify the HTML document
Jodd Lagarto also allows you to modify the HTML document.The following example demonstrates how to add a new element to the HTML document:
Element bodyElement = document.selectFirst("body");
Element newElement = document.createElement("p");
newElement.setTextContent("This is a new paragraph.");
bodyElement.appendChild(newElement);
6. Output modified HTML
When you complete the operation of the HTML document, you can output the modified HTML as a string:
String modifiedHtml = document.getHtml();
System.out.println(modifiedHtml);
Summarize
JODD LAGARTO is a convenient and powerful tool for analysis and operation of HTML documents.It provides lightweight API and rich features, making it easy and flexible to deal with HTML.With the above example, you can start using Jodd Lagarto to process and operate HTML documents.
