java - HtmlUnit 提交表单？

Question

我正在尝试在网站上提交表格:http://pfam.xfam.org/search使用 java 和 HtmlUnit 但我无法让它工作。我认为问题在于“提交”按钮并不是真正的按钮，而是某种形式的其他输入。我对所有的 Html 元素都不太熟悉，而且我刚刚开始使用 HtmlUnit。任何帮助将不胜感激。下面是我的代码，它在表单中输入一个序列:

import com.gargoylesoftware.htmlunit.*;
import com.gargoylesoftware.htmlunit.html.*;

public class ProteinSearch {


    static String protein = "MAGAASPCANGCGPSAPSDAEVVHLCRSLEVGTVMTLFYSKKSQRPERKTFQVKLETRQITWSRGADKIEGAIDIREIKEIRPGKTSRDFDRYQEDPAFRPDQSHCFVILYGMEFRLKTLSLQATSEDEVNMWIRGLTWLMEDTLQAATPLQIERWLRKQFYSVDRNREDRISAKDLKNMLSQVNYRVPNMRFLRERLTDLEQRTSDITYGQFAQLYRSLMYSAQKTMDLPFLEASALRAGERPELCRVSLPEFQQFLLEYQGELWAVDRLQVQEFMLSFLRDPLREIEEPYFFLDEFVT";

    public static void main(String[] args) {

        WebClient client = new WebClient();
        try
        {
            HtmlPage currentPage = (HtmlPage)client.getPage("http://pfam.xfam.org/search");
            HtmlForm form = (HtmlForm) currentPage.getElementById("proteinSeqSearchForm");
            HtmlTextArea searchBox = form.getTextAreaByName("seq");

            searchBox.setTextContent(protein);

            //currentPage = form.getAcceptAttribute();

            System.out.println(form.getId());
        }
        catch(Exception ex)
        {
            System.out.println("Some form of error happened !");
        }


    }


}

Answer 1

你可以这样试试

HTMLButtonElement button = (HTMLButtonElement) page
        .getByXPath("//input[@class='submit']").get(0);
HtmlPage result_page = button.click();