public class NetConnection {

public NetConnection(final String url, final HttpMethod method,

final SuccessCallback successCallback,

final FailCallback failCallback, final String... kvs) {

new AsyncTask<Void, Void, String>() {

@Override

protected String doInBackground(Void... arg0) {

StringBuffer paramsStr = new StringBuffer();

for (int i = 0; i < kvs.length; i += 2) {

paramsStr.append(kvs[i]).append("=").append(kvs[i + 1])

.append("&");

}

try {

URLConnection uc;

switch (method) {

case POST:

uc = new URL(url).openConnection();

uc.setDoOutput(true);

BufferedWriter bw = new BufferedWriter(

new OutputStreamWriter(uc.getOutputStream(),

Config.CHARSET));

bw.write(paramsStr.toString());

bw.flush();

break;

default:

uc = new URL(url + "?" + paramsStr.toString())

.openConnection();

break;

}

System.out.println("Request url:" + uc.getURL());

System.out.println("Request data:" + paramsStr);

BufferedReader br = new BufferedReader(

new InputStreamReader(uc.getInputStream(),

Config.CHARSET));

String line = null;

StringBuffer result = new StringBuffer();

while ((line = br.readLine()) != null) {

result.append(line);

}

System.out.println("Result:" + result);

return result.toString();

} catch (MalformedURLException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

return null;

}

@Override

protected void onPostExecute(String result) {

if (result != null) {

if (successCallback != null) {

successCallback.onSuccess(result);

}

} else {

if (failCallback != null) {

failCallback.onFail();

}

}

super.onPostExecute(result);

}

}.execute();

}

public static interface SuccessCallback {

void onSuccess(String result);

}

public static interface FailCallback {

void onFail();

}

}

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