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POandroid development - connecting to a mysql database
 

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    <p>Im trying to connect to a mysql database which is on localhost. i get the error:</p> <p><strong>Error in http connection org.apache.http.conn.HttpHostConnectException: Connection to <a href="http://10.0.2.2" rel="nofollow">http://10.0.2.2</a> refused</strong></p> <p>The code is:</p> <pre><code>package com.test.poll; import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.util.ArrayList; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.widget.Toast; public class Poll extends Activity { InputStream is; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); String result = ""; //the year data to send ArrayList&lt;NameValuePair&gt; nameValuePairs = new ArrayList&lt;NameValuePair&gt;(); nameValuePairs.add(new BasicNameValuePair("year","1990")); try{ HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost("http://10.0.2.2/android/getAllPeopleBornAfter.php"); httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); HttpResponse response = httpclient.execute(httppost); HttpEntity entity = response.getEntity(); is = entity.getContent(); Log.e("log_tag", "connection success "); Toast.makeText(getApplicationContext(), "pass", Toast.LENGTH_SHORT).show(); }catch(Exception e){ Log.e("log_tag", "Error in http connection "+e.toString()); Toast.makeText(getApplicationContext(), "failed"+e.toString(), Toast.LENGTH_SHORT).show(); } //convert response to string try{ 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"); Toast.makeText(getApplicationContext(), "pass", Toast.LENGTH_SHORT).show(); } is.close(); result=sb.toString(); }catch(Exception e){ Log.e("log_tag", "Error converting result "+e.toString()); Toast.makeText(getApplicationContext(), "failed"+e.toString(), Toast.LENGTH_SHORT).show(); } //parse json data try{ JSONArray jArray = new JSONArray(result); for(int i=0;i&lt;jArray.length();i++){ JSONObject json_data = jArray.getJSONObject(i); Log.i("log_tag","id: "+json_data.getInt("id")+ ", name: "+json_data.getString("name")+ ", sex: "+json_data.getInt("sex")+ ", birthyear: "+json_data.getInt("birthyear") ); Toast.makeText(getApplicationContext(), "pass", Toast.LENGTH_SHORT).show(); } }catch(JSONException e){ Log.e("log_tag", "Error parsing data "+e.toString()); Toast.makeText(getApplicationContext(), "failed"+e.toString(), Toast.LENGTH_SHORT).show(); } } } </code></pre> <p>I have a php script to connect to the database but the app isn't getting that far. Is the url string right? I have seen to use 10.0.2.2 instead of localhost....but its not working for me...</p>
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    1. COThis may be helpful to you: http://stackoverflow.com/questions/4779963/how-can-i-access-my-localhost-from-my-android-device/4779992#4779992
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