单击HtmlUnit不工作的按钮

Question

我试图单击使用HtmlUnit 2.23的登录按钮，使用DomElement或executeJavaScript，但它们都不起作用。有没有其他的方式来使它工作？这是代码：

@Test 
public void noLogin() throws Exception { 
    final WebClient webClient = new WebClient(BrowserVersion.BEST_SUPPORTED); 
    //see http://stackoverflow.com/questions/3600557/turning-htmlunit-warnings-off/18563576#18563576 
    java.util.logging.Logger.getLogger("com.gargoylesoftware").setLevel(Level.OFF); 
    //see http://stackoverflow.com/questions/18556200/htmlunit-button-click 
    webClient.getOptions().setJavaScriptEnabled(true);  
    webClient.getOptions().setThrowExceptionOnScriptError(false); 
    webClient.getOptions().setThrowExceptionOnFailingStatusCode(false); 
    webClient.setAjaxController(new NicelyResynchronizingAjaxController()); 

    final HtmlPage loginPage = webClient.getPage("https://sandbox.paydirekt.de/account/#/login"); 
    loginPage.getElementById("username").setAttribute("value", "no"); 
    loginPage.getElementById("password").setAttribute("value", "login"); 
    //final HtmlPage welcomePage = ((DomElement)loginPage.getFirstByXPath("//button[@type='submit']")).click(); 
    //see http://stackoverflow.com/questions/14474580/use-htmlunit-doesnt-work-button-click 
    //ScriptResult result = loginPage.executeJavaScript("javascript:document.getElementsByName('loginForm')[0].submit();"); 

    ScriptResult result = loginPage.executeJavaScript("javascript:document.getElementsByClassName('loginBox__loginButton button button--full')[0].click()"); 
    Page page = result.getNewPage(); 
    if (page.isHtmlPage()) { 
     HtmlPage welcomePage = ((HtmlPage)page); 
     System.out.println(welcomePage.asText()); 
     Assert.assertTrue(welcomePage.asText().contains("Benutzername oder Passwort nicht korrekt.")); 
    } 
    webClient.close(); 
} 

Answer 1

您也可以使用HTMLUnit提供的连接包装来手动检查每个请求和响应。这里是一个例子

  new WebConnectionWrapper(webClient) { 

       public WebResponse getResponse(WebRequest request) throws IOException { 
        WebResponse response = super.getResponse(request); 
        if (request.getUrl().toExternalForm().contains("THE URL YOU WANT TO CHECK")) { 
         String content = response.getContentAsString("UTF-8"); 

//CHECK CONTENT HERE 


         WebResponseData data = new WebResponseData(content.getBytes("UTF-8"), response.getStatusCode(), 
           response.getStatusMessage(), response.getResponseHeaders()); 
         response = new WebResponse(data, request, response.getLoadTime()); 
        } 
        return response; 
       } 
      };