Can use jTDS for my phone?

[Loren Natasya Gunawan]

I try some tutorial for connect Android Studio 2.2.3 and MS SQL server 2012:
this is my source code:

import android.annotation.SuppressLint;
import android.os.StrictMode;
import android.util.Log;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

/*
* Created by loren10 on 27/12/2016.
/

public class DbHelper {
String ip = "";
String classs = "net.sourceforge.jtds.jdbc.Driver";
String db = "";
String un = "";
String password = "";

@SuppressLint("NewApi")
public Connection CONN() {
    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
    StrictMode.setThreadPolicy(policy);
    Connection conn = null;
    String ConnURL = null;
    try {

        Class.forName(classs).newInstance();
        ConnURL = "jdbc:jtds:sqlserver://" + ip + "/" + db + ";user=" + un + ";password=" + password + ";";
        conn = DriverManager.getConnection(ConnURL);
    } catch (SQLException se) {
        Log.e("ERROR1", se.getMessage());
    } catch (ClassNotFoundException e) {
        Log.e("ERROR2", e.getMessage());
    } catch (Exception e) {
        Log.e("ERROR3", e.getMessage());
    }
    return conn;
}

}

after i build in my phone this is my problem : "E/ERROR: net.sourceforge.jtds.jdbc.Driver".. can anyone help me for solve this problem please?

[Bernd Eckenfels]

Can you tell us which of the 3 ERRORx cases your error is? You should also use e.toString() instead of getMessage() to make the logs more helpful. I have no experiemce with Android so I dont know if it can work, but it does look like the driver JAR is not found or loaded.