无法使用Jquery和Jsoup访问动态生成的元素

Question

lets explain whats happening, i am parsing a html page to show its content in my android application. firstly i load the html with android webview and then i get html code by code below :

  // load a webview
         wb.postUrl(url, EncodingUtils.getBytes(postData, "BASE64"));

    // on page finish i will call a   @JavascriptInterface
        public void onPageFinished(WebView view, String url) {

     view.loadUrl("javascript:window.HTMLOUT.processMain(
document.getElementsByTagName('html')[0].innerHTML);");

        }




          @JavascriptInterface
         class LoadListener{
                @JavascriptInterface
                public void processMain(String html)
                {

                     doc= Jsoup.parse(html);
                    getActivity().runOnUiThread(new Runnable() {
                        @Override
                        public void run() {

                   //here i can parse doc that is a jsoup document and select elements
        doc.select("#login > tbody > tr > td.error").text();
                    });

my problem : there is a table in my html page that is dynamically added to html( i am not sure how, append ? addchild ? php ? or... because i have not access to php codes ). i select that table with this line of code! but it returns null.

doc.select("#login > tbody > tr > td.error").text()

so how can i select that table ??

Answer 1

Jsoup is not a browser. It is a parser. It does not understand JavaScript and can't run it. So if your page dynamically constructs DOM elements through Javascript you can't access this with Jsoup. Have a look into selenium webdriver if you need this