I trying to test the connection with my local sql DB. I have this code:
try{
Class.forName(\"com.microsoft.sqlserver.jdbc.SQLServerDriver\").newInstance(
Since you get this error,the Sql server correctly listens to the port.
If you want to define a user,go from the tree, to Security->Logins,right click on logins folder and click "New Login".
Now your server should work with this Url String. Use the log file of the Server that may help you understand its working.