Javascript based dynamic content using htmlUnit

问题

I have been stuck in getting JavaScript based dynamic content using HtmlUnit. I am expecting to get (Signin, Registration html content) from the page. With the following code, I only get the static content.

I am new to HtmlUnit. Any help will be highly appreciated.

String strURL = "https://www.checkmytrip.com" ;
java.util.logging.Logger.getLogger("com.gargoylesoftware.htmlunit").setLevel(java.util.logging.Level.OFF);
java.util.logging.Logger.getLogger("org.apache.http").setLevel(java.util.logging.Level.OFF);

final WebClient webClient = new WebClient(BrowserVersion.FIREFOX_31);
webClient.getOptions().setJavaScriptEnabled(true);
webClient.getCookieManager().setCookiesEnabled(true);
webClient.waitForBackgroundJavaScript(60 * 1000);
webClient.setAjaxController(new NicelyResynchronizingAjaxController());

HtmlPage myPage = ((HtmlPage) webClient.getPage(strURL));

String theContent = myPage.getWebResponse().getContentAsString();
System.out.println(theContent);

回答1:

Two points:

You need to waitForBackgroundJavaScript() after you get the page, as hinted here

You should use myPage.asText() or .asXml() instead, because getWebResponse() returns the original content without JavaScript execution.

String strURL = "https://www.checkmytrip.com" ;
java.util.logging.Logger.getLogger("com.gargoylesoftware.htmlunit").setLevel(java.util.logging.Level.OFF);
java.util.logging.Logger.getLogger("org.apache.http").setLevel(java.util.logging.Level.OFF);

try (final WebClient webClient = new WebClient(BrowserVersion.FIREFOX_31)) {
    webClient.setAjaxController(new NicelyResynchronizingAjaxController());

    HtmlPage myPage = ((HtmlPage) webClient.getPage(strURL));
    webClient.waitForBackgroundJavaScript(10 * 1000);

    String theContent = myPage.asXml();
    System.out.println(theContent);
}

来源：https://stackoverflow.com/questions/30342087/javascript-based-dynamic-content-using-htmlunit

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java

javascript

htmlunit