如何在android imageview中顯示驗證碼圖片？

Question

我想處理驗證碼圖像並顯示android imageview對象。從URL

Sample Captcha Registration Form

驗證碼圖片下載是不是一個解決方案。

我已經試過，jsoup庫，但我不能。

Answer 1

據：How to display captcha in ImageView in Android.?

它應該是這樣的：

private static final String FORM_TARGET = "http://www.indianrail.gov.in/cgi_bin/inet_pnstat_cgi.cgi"; 
private static final String INPUT_PNR = "lccp_pnrno1"; 
private static final String INPUT_CAPTCHA = "lccp_capinp_val"; 
private static final String INPUT_CAPTCHA_HIDDEN = "lccp_cap_val"; 

private void getHtml(String userPnr) { 
    MultipartEntityBuilder builder = MultipartEntityBuilder.create(); 
    builder.addTextBody(INPUT_PNR, userPnr); // users PNR code 
    builder.addTextBody(INPUT_CAPTCHA, "123456"); 
    builder.addTextBody("submit", "Get Status"); 
    builder.addTextBody(INPUT_CAPTCHA_HIDDEN, "123456"); // values don't 
                  // matter as 
                  // long as they 
                  // are the same 

    HttpEntity entity = builder.build(); 

    HttpPost httpPost = new HttpPost(FORM_TARGET); 
    httpPost.setEntity(entity); 

    HttpClient client = new DefaultHttpClient(); 

    HttpResponse response = null; 
    String htmlString = ""; 
    try { 
     response = client.execute(httpPost); 
     htmlString = convertStreamToString(response.getEntity().getContent()); 
       // now you can parse this string to get data you require. 
    } catch (Exception letsIgnoreItForNow) { 
    } 
} 

private static String convertStreamToString(InputStream is) { 
    BufferedReader reader = new BufferedReader(new InputStreamReader(is)); 
    StringBuilder sb = new StringBuilder(); 

    String line = null; 
    try { 
     while ((line = reader.readLine()) != null) { 
      sb.append(line); 
     } 
    } catch (IOException ignoredOnceMore) { 
    } finally { 
     try { 
      is.close(); 
     } catch (IOException manyIgnoredExceptions) { 
     } 
    } 

    return sb.toString(); 
}