我想使用具有这种形式的页面：
<form method="post" action="modules.php?name=search">
<input onkeypress=FKeyPress(this); onkeydown=FKeyDown(this); type="text" style="text-align:center" name="name" size="30"> </p>
<img src='captcha.php' id='captcha' /><br /><br /><a href='#' onclick='document.getElementById("captcha").src="captcha.php?"+Math.random();document.getElementById("captchaf").focus ();'id='change-image'>change</a><br/><p><strong>Enter captcha</strong><br>
<input name="captcha" id="captchaf" type="text" style="text-align:center"></p><br />
<input name="fbrsecured" type="hidden" value="">
<input name="action" type="hidden" value="FBSend">
<p><input type="submit" name="submit" value="search"></p>
</form>
我展示了使用这个：
EditText edcap = (EditText) findViewById(R.id.cap);
ImageView cap = (ImageView) findViewById(R.id.capt);
try{
String url1 = "mysiteaddress/captcha.php";
URL ulrn = new URL(url1);
HttpURLConnection con = (HttpURLConnection)ulrn.openConnection();
InputStream is = con.getInputStream();
Bitmap bmp = BitmapFactory.decodeStream(is);
if (null != bmp)
cap.setImageBitmap(bmp);
else
System.out.println("The Bitmap is NULL");
}catch(Exception e){}
String capt = edcap.getText().toString();
HttpPost httpPost = new HttpPost("http://eservice.postcode.post.ir/modules.php?name=Postalcode2");
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("name", Name));
nameValuePairs.add(new BasicNameValuePair("captcha", Capt));
nameValuePairs.add(new BasicNameValuePair("fbrsecured", ""));
nameValuePairs.add(new BasicNameValuePair("action", "FBSend"));
nameValuePairs.add(new BasicNameValuePair("submit", "search"));
我显示验证码并输入 edcap 但出现不正确的验证码错误。