title: Java unknown host exception
body: <p>I am trying to access textalertapp.com via HTTP Post request from my android application. But I am getting Unknown host error. Can anybody help me solve this issue. </p>
  
  <pre><code>12-13 01:30:16.058: WARN/System.err(473): java.net.UnknownHostException: textalertapp.com
      12-13 01:30:16.088: WARN/System.err(473):     at java.net.InetAddress.lookupHostByName(InetAddress.java:513)
      12-13 01:30:16.088: WARN/System.err(473):     at java.net.InetAddress.getAllByNameImpl(InetAddress.java:278)
      12-13 01:30:16.088: WARN/System.err(473):     at java.net.InetAddress.getAllByName(InetAddress.java:242)
      12-13 01:30:16.088: WARN/System.err(473):     at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:136)
      12-13 01:30:16.099: WARN/System.err(473):     at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
      12-13 01:30:16.099: WARN/System.err(473):     at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
      12-13 01:30:16.099: WARN/System.err(473):     at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:348)
      12-13 01:30:16.108: WARN/System.err(473):     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
      12-13 01:30:16.118: WARN/System.err(473):     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
      12-13 01:30:16.118: WARN/System.err(473):     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
      12-13 01:30:16.118: WARN/System.err(473):     at com.textalert.alertCollection.getAlerts(alertCollection.java:46)
      12-13 01:30:16.118: WARN/System.err(473):     at com.textalert.alertsList$1.run(alertsList.java:81)
      12-13 01:30:16.128: WARN/System.err(473):     at java.lang.Thread.run(Thread.java:1096)
  </code></pre>
  
  <p>Code is </p>
  
  <pre><code> HttpClient client = new DefaultHttpClient();
                  String postURL = "http://textalertapp.com/androidCode/?api=AlertManager&amp;method=getAlerts";
                  HttpPost post = new HttpPost(postURL); 
  
                  List&lt;NameValuePair&gt; params = new ArrayList&lt;NameValuePair&gt;();
                  params.add(new BasicNameValuePair("user", "kris"));
                  params.add(new BasicNameValuePair("pass", "xyz"));
                  UrlEncodedFormEntity ent = new UrlEncodedFormEntity(params,HTTP.UTF_8);
                  post.setEntity(ent);
                  HttpResponse responsePOST = client.execute(post);  
                  HttpEntity resEntity = responsePOST.getEntity();  
                  if (resEntity != null) {    
                      Log.i("RESPONSE",EntityUtils.toString(resEntity));
                  }
  </code></pre>