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POhttppost.execute goes to exception
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  1. POhttppost.execute goes to exception
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    copied!<p>i have searched each and every thing at this site but still i don't understand what is matter with my code i have debugged it also it goes to exception when it tries to execute the this line "HttpResponse response=httpclient.execute(httppost)" i have also added permission of internet in android manifest file but still don't understand whats the matter.</p> <p>please help me i shall be very thankful to all of you.....</p> <p>here is my code</p> <pre><code>public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // set a click listener on the alert button Button alert = (Button) findViewById(R.id.alertbtn); alert.setOnClickListener(this); } public void onClick(View view) { if (view == findViewById(R.id.alertbtn)) { AlertDialog.Builder alertbox = new AlertDialog.Builder(this); ArrayList&lt;NameValuePair&gt; postParameters = new ArrayList&lt;NameValuePair&gt;(2); postParameters.add(new BasicNameValuePair("email","awais")); postParameters.add(new BasicNameValuePair("password","123")); try { HttpClient httpclient=new DefaultHttpClient(); HttpPost httppost=new HttpPost("http://localhost/doctroidlogin.php"); httppost.setEntity(new UrlEncodedFormEntity(postParameters)); HttpResponse response=httpclient.execute(httppost); HttpEntity entity=response.getEntity(); if(entity.toString().length()&gt;0) alertbox.setMessage("Welcome to DangerZone!"); else alertbox.setMessage("Invalid Email or Password"); alertbox.show(); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } </code></pre> <p>Log Cat</p> <pre><code>09-23 00:53:51.251: WARN/System.err(327): java.net.UnknownHostException: pannl.com 09-23 00:53:51.266: WARN/System.err(327): at java.net.InetAddress.lookupHostByName(InetAddress.java:506) 09-23 00:53:51.285: WARN/System.err(327): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:294) 09-23 00:53:51.285: WARN/System.err(327): at java.net.InetAddress.getAllByName(InetAddress.java:256) 09-23 00:53:51.306: WARN/System.err(327): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:136) 09-23 00:53:51.316: WARN/System.err(327): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164) 09-23 00:53:51.336: WARN/System.err(327): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119) 09-23 00:53:51.356: WARN/System.err(327): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:359) 09-23 00:53:51.366: WARN/System.err(327): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555) 09-23 00:53:51.375: WARN/System.err(327): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 09-23 00:53:51.386: WARN/System.err(327): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465) 09-23 00:53:51.406: WARN/System.err(327): at huuah.dialogboxes.LastActivity.onClick(LastActivity.java:57) 09-23 00:53:51.415: WARN/System.err(327): at android.view.View.performClick(View.java:2485) 09-23 00:53:51.436: WARN/System.err(327): at android.view.View$PerformClick.run(View.java:9080) 09-23 00:53:51.466: WARN/System.err(327): at android.os.Handler.handleCallback(Handler.java:587) 09-23 00:53:51.476: WARN/System.err(327): at android.os.Handler.dispatchMessage(Handler.java:92) 09-23 00:53:51.486: WARN/System.err(327): at android.os.Looper.loop(Looper.java:123) 09-23 00:53:51.506: WARN/System.err(327): at android.app.ActivityThread.main(ActivityThread.java:3683) 09-23 00:53:51.516: WARN/System.err(327): at java.lang.reflect.Method.invokeNative(Native Method) 09-23 00:53:51.526: WARN/System.err(327): at java.lang.reflect.Method.invoke(Method.java:507) 09-23 00:53:51.546: WARN/System.err(327): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 09-23 00:53:51.566: WARN/System.err(327): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 09-23 00:53:51.566: WARN/System.err(327): at dalvik.system.NativeStart.main(Native Method) </code></pre>
 

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