Question

Where do I have a bug? A mistake? Why can’t I connect? My code,

    package conexiones;
    import java.sql.DriverManager;
    import java.sql.Connection;

    public class miconexion {
        static String db = "futbol";
        static String url = "jdbc:sqlserver://localhost;databaseName="+db+";";

        //(local)\SQLEXPRESS
        //String conn;
        public Connection conn;

        public miconexion() {
            try
            {
                Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
                conn=DriverManager.getConnection(url);
                System.out.println("conexion exitosa");
            }
            catch(Exception e)
            {
                System.out.println(e);
                System.out.println("no conectado");
            }
        }

        public Connection getConnection()
        {
            return conn;
        }

        public void desconectar()
        {
            conn=null;
        }

        public static void main(String [] ar )
        {
            miconexion con = new miconexion();
            con.getConnection();
        }
    }

Answer 1

You may need to enable basic authentication. By default MS SQL Server only accepts trusted (aka Windows login) connections. You’ll also need to create a user and specify the username and password in the connection string.