我不是HtmlUnit专家，但是有一种解决方法。您可以将自己的按钮添加到表单，然后使用它来提交表单。
这是带有注释的代码示例：
import java.io.IOException;import java.net.MalformedURLException;import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException;import com.gargoylesoftware.htmlunit.WebClient;import com.gargoylesoftware.htmlunit.html.HtmlButton;import com.gargoylesoftware.htmlunit.html.HtmlForm;import com.gargoylesoftware.htmlunit.html.HtmlPage;import com.gargoylesoftware.htmlunit.html.HtmlTextInput;public class HtmlUnitExampleTestbase { public static void main(String[] args) throws FailingHttpStatusCodeException, MalformedURLException, IOException { WebClient webClient = new WebClient(); webClient.setThrowExceptionOnscriptError(false); // This is equivalent to typing youtube.com to the adress bar of browser HtmlPage currentPage = webClient.getPage("http://www.youtube.com"); // Get form where submit button is located HtmlForm searchForm = (HtmlForm) currentPage.getElementById("masthead-search"); // Get the input field. HtmlTextInput searchInput = (HtmlTextInput) currentPage.getElementById("masthead-search-term"); // Insert the search term. searchInput.setText("Nyan Cat"); // Workaround: create a 'fake' button and add it to the form. HtmlButton submitButton = (HtmlButton) currentPage.createElement("button"); submitButton.setAttribute("type", "submit"); searchForm.appendChild(submitButton); // Workaround: use the reference to the button to submit the form. HtmlPage newPage = submitButton.click(); System.out.println(newPage.asText()); }}
