android - How to get element by class name with Jsoup? -


i'm trying extract data yahoo finance pages in android.

both summary page , historical prices page of specific stock contain many td class="yfnc_tabledata1", need extract numbers. extract data inside these td in historical prices page, here:

document document = jsoup.connect("http://finance.yahoo.com/q/hp?s=lux.mi").get();             elements html = document.getelementsbyclass("yfnc_tabledata1");

but seems same snippet not working summary page, here:

document document = jsoup.connect("http://finance.yahoo.com/q?s=lux.mi").get();             elements html = document.getelementsbyclass("yfnc_tabledata1");

after reading other questions tried following 3 approaches, without success:

elements html = document.select(".yfnc_tabledata1"); html.size() = 0 
elements html = document.getelementsbyattributevaluecontaining("class", "yfnc_tabledata1"); html.size() = 0 
element el = document.getelementbyid("table#table1"); elements html = el.getallelements(); html.size() = error due el being null

any idea i'm doing wrong?

here snippet of summary page can't extract data:

<div class="yui-u first yfi-start-content">    <div class="yfi_quote_summary">      <div id="yfi_quote_summary_data" class="rtq_table">        <table id="table1">          <tr>            <th scope="row" width="48%">prev close:</th>            <td class="yfnc_tabledata1">61.15</td>          </tr>          <tr>            <th scope="row" width="48%">open:</th>            <td class="yfnc_tabledata1">61.45</td>          </tr>          <tr>            <th scope="row" width="48%">bid:</th>            <td class="yfnc_tabledata1">              <span id="yfs_b00_lux.mi">61.20</span>            </td>          </tr>          <tr>            <th scope="row" width="48%">ask:</th>            <td class="yfnc_tabledata1">              <span id="yfs_a00_lux.mi">61.30</span>            </td>          </tr>          <tr>            <th scope="row" width="48%">1y target est:</th>            <td class="yfnc_tabledata1">n/a</td>          </tr><tr><th scope="row" width="48%">beta:</th>          <td class="yfnc_tabledata1">n/a</td>          </tr>          <tr>            <th scope="row" width="54%">next earnings date:</th>            <td class="yfnc_tabledata1">n/a</td>          </tr>        </table>        <table id="table2">          <tr>            <th scope="row" width="48%">day's range:</th>            <td class="yfnc_tabledata1">              <span>                <span id="yfs_g53_lux.mi">60.75</span>              </span> -               <span>              <span id="yfs_h53_lux.mi">61.60</span>              </span>            </td>          </tr>          <tr>            <th scope="row" width="48%">52wk range:</th>            <td class="yfnc_tabledata1">              <span>34.74</span>              - <span>62.50</span>            </td>          </tr>          <tr>            <th scope="row" width="48%">volume:</th>            <td class="yfnc_tabledata1">              <span id="yfs_v53_lux.mi">1,057,884</span>            </td>          </tr>          <tr>            <th scope="row" width="48%">avg vol               <span class="small">(3m)</span>              :</th>            <td class="yfnc_tabledata1">740,908</td>          </tr>          <tr>            <th scope="row" width="48%">market cap:</th>            <td class="yfnc_tabledata1"                ><span id="yfs_j10_lux.mi">29.36b</span>            </td>          </tr>          <tr>            <th scope="row" width="48%">p/e               <span class="small">(ttm)</span>              :</th>            <td class="yfnc_tabledata1">42.28</td>          </tr>          <tr>            <th scope="row" width="48%">eps               <span class="small">(ttm)</span>              :</th>            <td class="yfnc_tabledata1">1.45</td>          </tr>          <tr class="end"><th scope="row" width="48%">div &amp; yield:</th>            <td class="yfnc_tabledata1">n/a (n/a) </td>          </tr>        </table>      </div>    </div>

edit1:

i found why same snippet doesn't work on both pages. snippet works fine historical prices page, , if try retrieve html of page, can see it's same exact html see in view-source of page in chrome. same doesn't happen summary page: when try retrieve html, has nothing view-source in chrome, it's retrievin different, can't tell exactly. question is: how come snippet not retrieving correct html of page?

document document = jsoup.connect("http://finance.yahoo.com/q?s=lux.mi").get();             temp = document.html();

solution found op:

edit2- solution: in case happens else: if jsoup.connect(url).get() reason doesn't retrieve correct page, first html in string without using jsoup, , after parse string jsoup.

httpclient httpclient = new defaulthttpclient(); httpget httpget = new httpget("http://google.com"); httpresponse response = httpclient.execute(httpget);  httpentity entity = response.getentity();  inputstream = entity.getcontent(); bufferedreader reader = new bufferedreader(new inputstreamreader(is, "iso-8859-1"), 8); stringbuilder sb = new stringbuilder(); string line = null; while ((line = reader.readline()) != null)     sb.append(line + "\n");  string html = sb.tostring(); is.close(); document document = jsoup.parse(html);

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