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POAndroid Web Service connection refused
 

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  1. POAndroid Web Service connection refused
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    <p>I know that my code is correct because it worked once. There is no problem with my PHP because when it runs, it returns what I want. The problem here is in the request. I am trying to get the correct address but so far I've tried every possible one and had no success. My code is:</p> <pre><code>package com.example.testwiththread; import java.util.ArrayList; import java.util.List; import org.apache.http.NameValuePair; 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.view.Menu; import android.view.View; import android.widget.EditText; import android.widget.Toast; public class MainActivity extends Activity { JSONParser jsonParser = new JSONParser(); String pid; String name = ""; String test = ""; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.service_details); new Thread(new TestThread()).start(); Toast.makeText(this, "Hi", Toast.LENGTH_SHORT).show(); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.activity_main, menu); return true; } public void clickSend (View view) { EditText txtName = (EditText) findViewById(R.id.txtName); EditText txtPrice = (EditText) findViewById(R.id.txtTest); // display product data in EditText txtName.setText(name); txtPrice.setText(test); Log.e("Checking", name); Log.e("Checking", test); } public class TestThread extends Thread { public void run() { int success; try { // Building Parameters List&lt;NameValuePair&gt; params = new ArrayList&lt;NameValuePair&gt;(); params.add(new BasicNameValuePair("pid", pid)); // getting product details by making HTTP request // Note that product details url will use GET request JSONObject json = jsonParser.makeHttpRequest( "http://10.0.2.2:8080/webservice.php", "GET", params); // check your log for json response Log.d("Single Record Details", json.toString()); // json success tag success = json.getInt("success"); if (success == 1) { // successfully received product details JSONArray productObj = json.getJSONArray("record"); // JSON Array // get first product object from JSON Array JSONObject product = productObj.getJSONObject(1); name = product.getString("name"); test = product.getString("test"); } } catch (JSONException e) { Log.e("error", e.toString()); } } } } </code></pre> <p>My JSON Parser:</p> <pre><code>package com.example.secondtestsqlserver; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.UnsupportedEncodingException; import java.util.List; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.client.utils.URLEncodedUtils; import org.apache.http.impl.client.DefaultHttpClient; import org.json.JSONException; import org.json.JSONObject; import android.util.Log; public class JSONParser { static InputStream is = null; static JSONObject jObj = null; static String json = ""; // constructor public JSONParser() { } // function get json from url // by making HTTP POST or GET method public JSONObject makeHttpRequest(String url, String method, List&lt;NameValuePair&gt; params) { // Making HTTP request try { // check for request method if(method == "POST"){ // request method is POST // defaultHttpClient DefaultHttpClient httpClient = new DefaultHttpClient(); HttpPost httpPost = new HttpPost(url); httpPost.setEntity(new UrlEncodedFormEntity(params)); HttpResponse httpResponse = httpClient.execute(httpPost); HttpEntity httpEntity = httpResponse.getEntity(); is = httpEntity.getContent(); }else if(method == "GET"){ // request method is GET DefaultHttpClient httpClient = new DefaultHttpClient(); String paramString = URLEncodedUtils.format(params, "utf-8"); url += "?" + paramString; HttpGet httpGet = new HttpGet(url); HttpResponse httpResponse = httpClient.execute(httpGet); HttpEntity httpEntity = httpResponse.getEntity(); is = httpEntity.getContent(); } } catch (UnsupportedEncodingException e) { Log.e("Unsupported Encoding", Log.getStackTraceString(e)); } catch (ClientProtocolException e) { Log.e("Client Protocol", Log.getStackTraceString(e)); } catch (IOException e) { Log.e("IO Exception", Log.getStackTraceString(e)); } 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"); } is.close(); json = sb.toString(); } catch (Exception e) { Log.e("Buffer Error", "Error converting result " + e.toString()); System.out.println(e.toString()); } // try parse the string to a JSON object try { jObj = new JSONObject(json); } catch (JSONException e) { Log.e("JSON Parser", "Error parsing data " + e.toString()); Log.e("JSON Parser", json); } // return JSON String return jObj; } } </code></pre> <p>As you can see I am using 10.0.2.2:8080 as the localhost address. I have tried 127.0.0.1, localhost, and many other options included in the Android page for localhost. Most of them return this error</p> <pre><code>02-11 15:18:31.329: E/IO Exception(27504): org.apache.http.conn.HttpHostConnectException: Connection to http://10.0.2.2:8080 refused 02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:183) 02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164) 02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119) 02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360) 02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555) 02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465) 02-11 15:18:31.329: E/IO Exception(27504): at com.example.testwiththread.JSONParser.makeHttpRequest(JSONParser.java:62) 02-11 15:18:31.329: E/IO Exception(27504): at com.example.testwiththread.MainActivity$TestThread.run(MainActivity.java:63) 02-11 15:18:31.329: E/IO Exception(27504): at java.lang.Thread.run(Thread.java:856) 02-11 15:18:31.329: E/IO Exception(27504): Caused by: java.net.ConnectException: failed to connect to /10.0.2.2 (port 8080): connect failed: ETIMEDOUT (Connection timed out) 02-11 15:18:31.329: E/IO Exception(27504): at libcore.io.IoBridge.connect(IoBridge.java:114) 02-11 15:18:31.329: E/IO Exception(27504): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192) 02-11 15:18:31.329: E/IO Exception(27504): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459) 02-11 15:18:31.329: E/IO Exception(27504): at java.net.Socket.connect(Socket.java:842) 02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:119) 02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:144) 02-11 15:18:31.329: E/IO Exception(27504): ... 9 more 02-11 15:18:31.329: E/IO Exception(27504): Caused by: libcore.io.ErrnoException: connect failed: ETIMEDOUT (Connection timed out) 02-11 15:18:31.329: E/IO Exception(27504): at libcore.io.Posix.connect(Native Method) 02-11 15:18:31.329: E/IO Exception(27504): at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:85) 02-11 15:18:31.329: E/IO Exception(27504): at libcore.io.IoBridge.connectErrno(IoBridge.java:127) 02-11 15:18:31.329: E/IO Exception(27504): at libcore.io.IoBridge.connect(IoBridge.java:112) 02-11 15:18:31.329: E/IO Exception(27504): ... 14 more 02-11 15:18:31.329: E/Buffer Error(27504): Error converting result java.lang.NullPointerException: lock == null 02-11 15:18:31.329: E/JSON Parser(27504): Error parsing data org.json.JSONException: End of input at character 0 of 02-11 15:18:31.329: W/dalvikvm(27504): threadid=11: thread exiting with uncaught exception (group=0x40e46930) 02-11 15:18:31.329: E/AndroidRuntime(27504): FATAL EXCEPTION: Thread-9043 02-11 15:18:31.329: E/AndroidRuntime(27504): java.lang.NullPointerException 02-11 15:18:31.329: E/AndroidRuntime(27504): at com.example.testwiththread.MainActivity$TestThread.run(MainActivity.java:67) 02-11 15:18:31.329: E/AndroidRuntime(27504): at java.lang.Thread.run(Thread.java:856) </code></pre> <p>However, the only one that doesn't return this error is when I use my router's IP address. The problem is, even though the connection is not refused, it says that access is forbidden. Any help will be appreciated.</p> <p>EDIT: Just in case, I have given internet access in the Manifest.</p>
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    1. COEverything seems to hint that it is your connection. Where is the PHP side hosted? You're using a loopback address to reach an external source?
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    2. COI am using my tablet to run my program. The PHP is hosted in the computer I am working at. I have the computer connected directly to a router and my tablet connected via WiFi. Like I said, I am using WAMP Server.
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    3. COCan you try to access same ip address URL from your phone's browser? I believe you need to change some security settings in Server to allow access from other than localhost.
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      1. USVendettaDroid
 

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