i would like to write data in an external mysql database with my android app.
this class works for that:
public class SendingData extends AppCompatActivity {
Intent intent = null;
private class LoadingDataURL extends AsyncTask<String, String, JSONArray> {
@Override
protected JSONArray doInBackground(String... params) {
URL url;
HttpURLConnection urlConnection = null;
JSONArray response = new JSONArray();
try {
url = new URL(params[0]);
urlConnection = (HttpURLConnection) url.openConnection();
int responseCode = urlConnection.getResponseCode();
String responseString = readStream(urlConnection.getInputStream());
intent = new Intent(SendingData.this, Overview.class);
startActivity(intent);
response = new JSONArray(responseString);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (urlConnection != null)
urlConnection.disconnect();
}
return response;
}
private String readStream(InputStream in) {
BufferedReader reader = null;
StringBuffer response = new StringBuffer();
try {
reader = new BufferedReader(new InputStreamReader(in, "UTF-8"));
String line = "";
while ((line = reader.readLine()) != null) {
response.append(line);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (reader != null) {
try {
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return response.toString();
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.loading_data);
String firstname = "Max";
String secondname= "Mustermann";
LoadingDataURL client = new LoadingDataURL();
client.execute("https://domain.com/index.php?"+
"fristname="+fristname+
"&secondname="+secondname);
}
}
My Problem is, that if in my strings (fristname, secondname) is an & or ? or any special characters, the entry will not be save correctly. any ideas? :)
Use the URLEncoder class.
Try this please
String fn = URLEncoder.encode(fristname, "utf-8");
String sn = URLEncoder.encode(secondname, "utf-8");
LoadingDataURL client = new LoadingDataURL();
client.execute("https://domain.com/index.php?"+
"fristname=" + fn + "&secondname=" + sn);
Note: Don't encode the full url, just the parameter values.
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