Problems when I try to connect to data base

[gabriel]

I'm trying to do a connection but it gives to me an error
this is my code:

String driverName = "com.microsoft.jdbc.sqlserver.SQLServerDriver"; 
String serverName = "MyServer";
String portNumber = "1433";
String dataBase ="SIEEC";
String url = "jdbc:microsoft:sqlserver://" + serverName + ":" + portNumber + ";" 
+ dataBase; 
String username = "sa";
String password = "Admin";

Class.forName(driverName);
connection = DriverManager.getConnection(url, username, password);

any ideas?

[tommy]

try using "database=xyz", or something like this:

String url = "jdbc:sqlserver://172.31.255.255;database=AdventureWorks";