MainAcitvity 获取 HTTPUrlConnection

private class MyAsyncTask extends AsyncTask<String,Void,String>{
@Override
protected String doInBackground(String... strings) {
String jsonByInternet = NetConnection.getJsonByInternet(strings[0]);
return jsonByInternet;
}

@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
//网络请求结束后做数据的解析并放入集合中（5分），
// 获取到数据之后开启计时器（5分），
//Log.e("TAG",jsonByInternet);
try {
JSONArray jsonArray = new JSONArray(s);
for (int i = 0; i < jsonArray.length(); i++) {
list.add(jsonArray.getString(i));
}
sendMsg();
} catch (JSONException e) {
e.printStackTrace();
}
}
}