HtmlUnit:检查HtmlElement是否为HtmlAnchor

import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlAnchor;
import com.gargoylesoftware.htmlunit.html.HtmlElement;
import com.gargoylesoftware.htmlunit.html.HtmlPage;

public class HtmlUnitExample {
    public static void main(String[] args) throws Exception {
        try (final WebClient webClient = new WebClient()) {
            // 获取页面
            HtmlPage page = webClient.getPage("http://example.com");

            // 获取所有的HtmlElement
            for (HtmlElement element : page.getElementsByTagName("a")) {
                // 判断是否为HtmlAnchor
                if (element instanceof HtmlAnchor) {
                    // 是HtmlAnchor，进行相关操作
                    HtmlAnchor anchor = (HtmlAnchor) element;
                    System.out.println("找到一个HtmlAnchor：" + anchor.asText());
                }
            }
        }
    }
}