I want to send a http request from my Android device using a local proxy. Before to detail my problem, I want you to know this is working well on every device I tried except on the Xperia arc S, and Xperia T, both running under Android 4.0.4. I do have a data connection on both devices and both are working !
I've used a DefaultHttpClient
instance to send my request but when the code reaches that part:
client.execute(request.target, request.post);
It crashed saying the following error:
02-21 15:37:25.677: W/System.err(1926): java.net.UnknownHostException: Unable to resolve host "192.168.010.200": No address associated with hostname
02-21 15:37:25.681: W/System.err(1926): at java.net.InetAddress.lookupHostByName(InetAddress.java:426)
02-21 15:37:25.681: W/System.err(1926): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:242)
02-21 15:37:25.681: W/System.err(1926): at java.net.InetAddress.getAllByName(InetAddress.java:220)
02-21 15:37:25.681: W/System.err(1926): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:143)
02-21 15:37:25.681: W/System.err(1926): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
02-21 15:37:25.681: W/System.err(1926): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
02-21 15:37:25.681: W/System.err(1926): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
02-21 15:37:25.681: W/System.err(1926): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:580)
02-21 15:37:25.681: W/System.err(1926): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:534)
02-21 15:37:25.681: W/System.err(1926): at com.myapp.mms.sender.WapClient.execute(WapClient.java:59)
In the above error log, the local IP is my local proxy host.
Here is my whole code:
public Response execute(PostRequest request) throws Exception
{
// Set proxy and route
this.params = client.getParams();
if (isProxySet) ConnRouteParams.setDefaultProxy(params, new HttpHost(this.host, this.port));
request.post.setParams(params);
// Set header
request.post.addHeader("Accept", "*/*, application/vnd.wap.mms-message, application/vnd.wap.sic");
request.post.addHeader("Accept-Language", getCurrentAcceptLanguage(Locale.getDefault()));
// Execute the request
HttpResponse httpResponse = client.execute(request.target, request.post);
// Create the object that will receive the response
Response response = new Response();
// Get the response code
StatusLine status = httpResponse.getStatusLine();
response.code = status.getStatusCode();
// Get the response body
byte[] responseBody = null;
HttpEntity entity = httpResponse.getEntity();
if (entity != null)
{
if (entity.getContentLength() > 0)
{
responseBody = new byte[(int)entity.getContentLength()];
DataInputStream dis = new DataInputStream(entity.getContent());
dis.readFully(responseBody);
dis.close();
}
entity.consumeContent();
}
response.body = responseBody;
return response;
}
Is there a way too bypass this error which appears only under Android 4.0.4 or am I doing it wrong ?
Or is there a way to do the same thing WITHOUT having a call to InetAddress.getByName ?
I found a way that appears to work on every device I have:
URL url = new URL(apn);
// Set-up proxy
Log.d(TAG, "Setting up proxy (" + host + ":" + port + ")");
Properties systemProperties = System.getProperties();
systemProperties.setProperty("http.proxyHost", host);
systemProperties.setProperty("http.proxyPort", String.valueOf(port));
systemProperties.setProperty("http.keepAlive", "false");
// Open connection
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
// Use the URL connection for output
connection.setUseCaches(false);
connection.setDoOutput(true);
// Set the timeouts
connection.setConnectTimeout(TIMEOUT);
connection.setReadTimeout(TIMEOUT);
// Sends the request
connection.setRequestProperty("Content-Type", "application/vnd.wap.mms-message");
connection.setRequestProperty("Content-Length", Integer.toString(mms.length));
// Connect to the MMSC
Log.d(TAG, "Connecting to APN " + apn);
connection.connect();
try
{
// Upload mms as bytes array
Log.d(TAG, "Uploading data (Size: " + mms.length);
OutputStream out = connection.getOutputStream();
out.write(mms);
out.flush();
out.close();
// Wait for the response
Log.d(TAG, "Response code is " + connection.getResponseCode());
if (connection.getContentLength() >= 0)
{
Log.d(TAG, "Reading response ...");
byte[] responseArray = new byte[connection.getContentLength()];
DataInputStream i = new DataInputStream(connection.getInputStream());
int b = 0;
int index = 0;
while ((b = i.read()) != -1)
{
responseArray[index] = (byte) b;
index++;
}
i.close();
// Close the connection
Log.d(TAG, "[MMS Sender] Disconnecting ...");
connection.disconnect();
}
else
{
return false;
}
}
catch (Exception e)
{
e.printStackTrace();
}
return false;
I hope this would help some people with the same erro.