尝试在java中使用HtmlUnit构建一个屏幕刮板。单击按钮后页面将不会加载（）

Question

我正在努力学习我在Htmlunit周围的方式，我正在研究这个小屏幕碎片，应该从某个网站获得酒店房间的价格。但是，最后一次按钮单击似乎不起作用。它不会加载新页面但保留旧页面。我认为这可能是一个javascript问题。

public static void scrapper() throws Exception {

    WebClient webClient = new WebClient(BrowserVersion.FIREFOX_3_6);
    HtmlPage page = webClient.getPage("https://gc.synxis.com/rez.aspx?Hotel=51174&Chain=12113&locale=nl-NL");

    //click first button
    HtmlElement theElement1 = (HtmlElement) page.getElementById("V0_C3_CBtn");               
    page = theElement1.click();

    System.out.println("Current page: Hampshire Hotels");

    //click the second button. Popup will appear.
    HtmlElement theElement2 = (HtmlElement) page.getElementById("V1_C2_ProductDetailRepeater_ctl02_SelectProductButton");               
    page = theElement2.click();

    //click the third button on popup.
    HtmlElement theElement3 = (HtmlElement) page.getElementById("PackageSelect_ContinueButtonBottom");    
    System.out.println("pressing last button");
    page = theElement3.click();

    System.out.println("Current page: Hampshire Hotels2");

    //getting the price.
    List<?> price = page.getByXPath("//html[@id='RezHtml']/body/form[@id='XbeForm']/div[@id='XbeView']/div/div[2]/div[@id='XbeViewPanel']/div/div[1]/div[1]/div[@id='V28_C4_PropertyNameDiv']/span[@id='V28_C4_PropertyNameLabel']/text()");
    System.out.println("price: " + price);

    //saves the web page
    String htmlContent = page.asXml();
    File htmlFile = new File("C:/index.html");
    PrintWriter pw = new PrintWriter(htmlFile);
    pw.print(htmlContent);
    pw.close();


    webClient.closeAllWindows();
}