Jericho HTML DEV framework in the development of Java libraries
The Jericho HTML DEV framework is a lightweight HTML analysis and operation tool for the development of Java libraries.It provides a simple and easy -to -use API that enables developers to easily analyze, operate and extract the content and elements in HTML documents.
Here are some cases of Jericho HTML DEV framework in the development of Java libraries:
1. Web content extraction: Through the Jericho HTML DEV framework, developers can easily extract the required content from the HTML document.For example, you can use it to analyze the content of the article on the news website, and then extract the title, text, and release date to further process and display.
String html = "<html> <body> <h1> Title </h1> <p> The content of the text </p> <span> Release Date: 2022-01-01 </span> </body> </html> </html>";
Source source = new Source(html);
Element titleElement = source.getFirstElement(HTMLElementName.H1);
String title = titleElement.getTextExtractor().toString();
Element contentElement = source.getFirstElement(HTMLElementName.P);
String content = contentElement.getTextExtractor().toString();
Element dateElement = source.getFirstElement(HTMLElementName.SPAN);
String date = dateElement.getChildElements().get(1).getTextExtractor().toString();
System.out.println ("Title:" + Title);
System.out.println ("Text:" + Content);
System.out.println ("Release Date:" + Date);
2. Webpage element operation: Jericho HTML DEV framework provides a powerful API, enabling developers to easily operate and modify the elements in the HTML document.For example, you can use it to modify the link in the webpage, or add styles and scripts.
String html = "<html><body><a href='https://www.example.com'>链接</a></body></html>";
Source source = new Source(html);
Element linkElement = source.getFirstElement(HTMLElementName.A);
linkElement.setAttributeValue("href", "https://www.newurl.com");
linkElement.setAttributeValue("target", "_blank");
System.out.println(source.toString());
3. Form data extraction: Jericho HTML DEV framework can also extract data in the HTML form.Developers can use it to parse the form, obtain the name and value of the form field, and processes follow -up, such as verification and submission of data.
String html = "<html><body><form><input type='text' name='username' value='John'><input type='password' name='password'></form></body></html>";
Source source = new Source(html);
List<Element> inputElements = source.getAllElements(HTMLElementName.INPUT);
for (Element element : inputElements) {
System.out.println("名称：" + element.getAttributeValue("name"));
System.out.println("值：" + element.getAttributeValue("value"));
}
In short, the Jericho HTML DEV framework has extensive application value in the development of Java libraries.It can easily handle HTML documents, extract content and elements, and provide a powerful API to operate and modify the webpage.Regardless of the web content extraction, element operation or form data extraction, the Jericho HTML Dev framework is a powerful and practical tool.
