Question

我对Html United非常新。我想知道我是否有能力使用 htmlunit 登录网站, 并在网站进行一些操作, 例如, 我想登录我的办公室门户,

I am using html unit and it shows some errors, is its possible to do with html unit or are there any other tools I can use for this purpose...
Here is my code

final WebClient webClient = new WebClient(BrowserVersion.FIREFOX_3_6);        
webClient.setJavaScriptEnabled(true);
webClient.getCookieManager().setCookiesEnabled(true);

final HtmlPage page1 =  webClient.getPage("http://www.ccstechnologies.org/login.aspx/");
final HtmlForm form = page1.getFormByName("form1");         
final HtmlSubmitInput button =  form.getInputByName("BtnLogin");
final HtmlTextInput textField =  form.getInputByName("Username");
final HtmlPasswordInput pwd =  form.getInputByName("password");        
textField.setValueAttribute("username");
pwd.setValueAttribute("password");      

final HtmlPage page2 =  button.getEnclosingForm().click();  
String htmlBody = page2.getWebResponse().getContentAsString(); 

System.out.println("Base Uri 1 : "+page1);
System.out.println("Base Uri 2 : "+page2);

webClient.closeAllWindows();

But when I print page2 it shows only the login page s url, and it is not returning the homepage url. What could be the problem ?

这是我在控制台点击表单时得到的

May 28, 2012 11:44:15 AM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify WARNING: Obsolete content type encountered: application/x-javascript . May 28, 2012 11:44:16 AM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify WARNING: Obsolete content type encountered: application/x-javascript . Base Uri 1 : HtmlPage(http://www.ccstechnologies.org/login.aspx/)@2741851 Base Uri 2 : HtmlPage(http://www.ccstechnologies.org/login.aspx/)@2741851

点击按钮时产生的结果

May 29, 2012 10:00:02 AM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Obsolete content type encountered:  application/x-javascript .
May 29, 2012 10:00:02 AM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Obsolete content type encountered:  application/x-javascript .
May 29, 2012 10:00:03 AM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Obsolete content type encountered:  application/x-javascript .
May 29, 2012 10:00:03 AM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Obsolete content type encountered:  application/x-javascript .
May 29, 2012 10:00:03 AM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Obsolete content type encountered:  application/x-javascript .
May 29, 2012 10:00:03 AM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Obsolete content type encountered:  application/x-javascript .
May 29, 2012 10:00:03 AM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Obsolete content type encountered:  text/javascript .
May 29, 2012 10:00:03 AM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Obsolete content type encountered:  text/javascript .
May 29, 2012 10:00:03 AM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Obsolete content type encountered:  text/javascript .
May 29, 2012 10:00:03 AM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Obsolete content type encountered:  text/javascript .
May 29, 2012 10:00:03 AM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Obsolete content type encountered:  text/javascript .
May 29, 2012 10:00:03 AM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Obsolete content type encountered:  text/javascript .
May 29, 2012 10:00:03 AM com.gargoylesoftware.htmlunit.DefaultCssErrorHandler error
WARNING: CSS error: [259:24] Error in expression. Invalid token "=". Was expecting one of: <S>, <COMMA>, "/", <PLUS>, "-", <HASH>, <STRING>, ")", <URI>, "inherit", <EMS>, <EXS>, <LENGTH_PX>, <LENGTH_CM>, <LENGTH_MM>, <LENGTH_IN>, <LENGTH_PT>, <LENGTH_PC>, <ANGLE_DEG>, <ANGLE_RAD>, <ANGLE_GRAD>, <TIME_MS>, <TIME_S>, <FREQ_HZ>, <FREQ_KHZ>, <DIMENSION>, <PERCENTAGE>, <NUMBER>, <FUNCTION>, <IDENT>.
May 29, 2012 10:00:03 AM com.gargoylesoftware.htmlunit.DefaultCssErrorHandler error
WARNING: CSS error: [259:29] Error in style rule. Invalid token "
   ". Was expecting one of: "}", ";".
May 29, 2012 10:00:03 AM com.gargoylesoftware.htmlunit.DefaultCssErrorHandler warning
WARNING: CSS warning: [259:29] Ignoring the following declarations in this rule.
HtmlPage(http://192.168.0.5/login.aspx)@23511316
HtmlPage(http://192.168.0.5/login.aspx)@17700115

Answer 1

好吧,我调查了一下,似乎问题在于按钮。我用这个替换了您按钮的代码线:

 final HtmlPage page2 =  (HtmlPage) form.getInputByValue("Login").click();

now it appears that it at least tries to login(and the page of course prints invalid login) so it should work with appropriate credentials. to print the page in java and see it use system.out.println(page1.asText()) or asXml depending on what you want to see

我的代码最后是这样的:

final WebClient webClient = new WebClient(BrowserVersion.FIREFOX_3_6);         
        webClient.setJavaScriptEnabled(true);
        webClient.getCookieManager().setCookiesEnabled(true);


     try{   final HtmlPage page1 =  webClient.getPage("http://www.ccstechnologies.org/login.aspx/");
        final HtmlForm form = page1.getFormByName("form1");         
        final HtmlSubmitInput button =  form.getInputByName("BtnLogin");
        final HtmlTextInput textField =  form.getInputByName("Username");
        final HtmlPasswordInput pwd =  form.getInputByName("password");        
        textField.setValueAttribute("username");
        pwd.setValueAttribute("password");      
System.out.println(page1.asText());
        final HtmlPage page2 =  (HtmlPage) form.getInputByValue("Login").click();

        String htmlBody = page2.getWebResponse().getContentAsString(); 
        System.out.println(page2.asText());
       System.out.println("Base Uri 1 : "+page1);
      System.out.println("Base Uri 2 : "+page2);

        webClient.closeAllWindows();}catch (Exception e) {
            // TODO: handle exception
        }

Answer 2

这是你应当为笔记本而设的:

webClient.getOptions().setJavaScriptEnabled(false);

你也可以把这些添加到它中去。

webClient.getOptions().setRedirectEnabled(true);
        webClient.getOptions().setThrowExceptionOnScriptError(false);
        webClient.getOptions().setCssEnabled(false);
        webClient.getOptions().setUseInsecureSSL(true);
        webClient.getOptions().setThrowExceptionOnFailingStatusCode(false);
        webClient.getCookieManager().setCookiesEnabled(true);

这应该能像对我一样解决问题

Answer 3

try to set cookies enabled, and try to set javascript enabled ignore errors that it might print...(I used to think errors in red are bad, in html unit it seems not necessarily)

Answer 4

If the website uses an ajax call to login. This worked for me. Set this

webClient.setAjaxController(new NicelyResynchronizingAjaxController());

这将使所有的刺死电话同步

这就是我如何设置我的 WebClient 对象的方法

WebClient webClient = new WebClient(BrowserVersion.CHROME);
webClient.getOptions().setJavaScriptEnabled(true);
webClient.getOptions().setCssEnabled(false);
webClient.getOptions().setUseInsecureSSL(true);
webClient.getOptions().setThrowExceptionOnFailingStatusCode(false);
webClient.getCookieManager().setCookiesEnabled(true);
webClient.setAjaxController(new NicelyResynchronizingAjaxController());
webClient.getOptions().setThrowExceptionOnScriptError(false);
webClient.getCookieManager().setCookiesEnabled(true);

友情链接