import com.gargoylesoftware.htmlunit.html.DomNodeList; //导入依赖的package包/类
public void roomBooking( User user, Meeting meeting ) throws Exception
{

    List< String > errorMessages = new ArrayList< String >();
    HtmlPage page = navigateToPage( user, BOOKING, true );
    logger.debug( "Page loaded" );

    HtmlForm form = page.getForms().get( 0 );
    HtmlButton button = form.getFirstByXPath( "//*[@id=\"Submit\"]" );

    HtmlSelect select = (HtmlSelect)page.getElementById( "ConferenceRooms" );
    HtmlOption option = select.getOptionByText( meeting.getRoom() );
    select.setSelectedAttribute( option, true );

    Date date = meeting.getDate();
    if( date != null )
    {
        HtmlTextInput startDate = form.getFirstByXPath( ".//*[@id='StartDate']" );
        DateFormat formatter = new SimpleDateFormat( "MM/dd/yyyy" );
        startDate.setAttribute( "value", formatter.format( date ) );
    }

    HtmlInput inputStartTime = form.getInputByName( "StartTime" );
    inputStartTime.setValueAttribute( meeting.getFromTime() );

    HtmlInput inputEndTime = form.getInputByName( "EndTime" );
    inputEndTime.setValueAttribute( meeting.getToTime() );

    HtmlInput inputReason = form.getInputByName( "Title" );
    inputReason.type( meeting.getReason() );

    List< String > attendeesList = meeting.getAttendees();
    if( attendeesList != null && attendeesList.size() > 0 )
    {
        HtmlSelect attendees = (HtmlSelect)page.getElementById( "AttendeesIds" );
        for( String participant : attendeesList )
        {
            attendees.getOptionByText( participant ).setSelected( true );
        }
    }
    logger.debug( "Page filled, clicking button" );
    HtmlPage nextPage = button.click();
    
    String pageUrl = new StringBuilder( "http://" ).append( WEBSITE ).append( SHOW_MY_BOOKINGS ).toString();
    if( !nextPage.getBaseURI().equals( pageUrl ) )
    {
        errorMessages.add( "Room already booked" );
        logger.error( errorMessages );
        throw new InvalidInputException( errorMessages );
    }

    // Error check
    DomNodeList< DomElement > list = page.getElementsByTagName( "span" );
    for( DomElement domElement : list )
    {
        if( domElement.getAttribute( "class" ).contains( "field-validation-error" ) )
        {
            errorMessages.add( domElement.getTextContent() );
        }
    }

    if( errorMessages.size() > 0 )
    {
        logger.error( errorMessages );
        throw new InvalidInputException( errorMessages );
    }
}
 

import com.gargoylesoftware.htmlunit.html.DomNodeList; //导入依赖的package包/类
/**
 * Tests that all menu entries point to an existing page.
 * 
 * @throws IOException In case of I/O error.
 */
@Test
public void testEntries() throws IOException {
	HtmlPage page = getWebClient().getPage("http://localhost/");

	HtmlNav menu = page.<HtmlNav> getHtmlElementById("main-menu");
	DomNodeList<HtmlElement> anchors = menu.getElementsByTagName("a");
	for (HtmlElement anchor : anchors) {
		LOGGER.debug("Testing {}", ((HtmlAnchor) anchor).getHrefAttribute());
		HtmlPage newPage = (HtmlPage) anchor.click();
		assertThat(newPage.getWebResponse().getStatusCode()).isEqualTo(HttpStatus.OK.value());

	}
}
 

import com.gargoylesoftware.htmlunit.html.DomNodeList; //导入依赖的package包/类
/**
 * 根据提供的HtmlPage寻找上一页的URL
 * @param page
 * @return
 */
private String getNextPageUrl(HtmlPage page) {
	DomNodeList<DomElement> thElement = page.getElementsByTagName("th");
	for (DomElement element: thElement) {
		if ("foot".equals(element.getAttribute("class"))) {
			DomNodeList<HtmlElement> aElement = element.getElementsByTagName("a");
			for (HtmlElement tempElement: aElement) {
				if ("上页".equals(tempElement.getTextContent())) {
					return tempElement.getAttribute("href");
				}
			}
		}
	}
	return null;
}
 

import com.gargoylesoftware.htmlunit.html.DomNodeList; //导入依赖的package包/类
public static void main(String[] args) throws Exception {
   WebClient webClient = new WebClient();
   HtmlPage page = webClient.getPage("http://www.gnu.org/home.es.html");
   
   DomNodeList<DomElement> nodeList = page.getElementsByTagName("a");
   for (DomElement element : nodeList){
      System.out.println(element.getTextContent()+ " -> " +element.getAttribute("href"));
   }

}
 

import com.gargoylesoftware.htmlunit.html.DomNodeList; //导入依赖的package包/类
public DomNodeList<DomElement> getElementsByTagName(String tagName){
	return this.Page.getElementsByTagName(tagName);
}