Conectar SQL server 2005 com JDBC erro de servidor!

import java.sql.<em>;

import com.microsoft.sqlserver.jdbc.</em>;

public class TesteSql {

public TesteSql() {
}

public static void main(String[] args) {
    
    
    // Declare the JDBC objects.
	Connection con = null;
	CallableStatement cstmt = null;
	ResultSet rs = null;
	
	try {
                
                // Establish the connection. 
		SQLServerDataSource ds = new SQLServerDataSource();
		ds.setUser("meu usuario");
		ds.setPassword("meu password");
		ds.setServerName("10.2.0.121");
		ds.setPortNumber(1433); 
		ds.setDatabaseName("Northwind");
		con = ds.getConnection();
		 
        	// Execute a stored procedure that returns some data.
        		cstmt = con.prepareCall("{call dbo.SalesByCategory(?)}");
        		cstmt.setInt(1, 50);
        		rs = cstmt.executeQuery();

        	// Iterate through the data in the result set and display it.
        	while (rs.next()) {
            		System.out.println("teste: " + rs.getString("LastName") + 
            			", " + rs.getString("FirstName"));
            		System.out.println("MANAGER: " + rs.getString("ManagerLastName") + 
            			", " + rs.getString("ManagerFirstName"));
            		System.out.println();
                    }
                
                
            }
                    
                    // Handle any errors that may have occurred.
    	catch (Exception e) {
    		e.printStackTrace();
    	}
            
            	   	finally {
    		if (rs != null) try { rs.close(); } catch(Exception e) {}
    		if (cstmt != null) try { cstmt.close(); } catch(Exception e) {}
    		if (con != null) try { con.close(); } catch(Exception e) {}
    	}
            }
}

init:

deps-jar:

Compiling 1 source file to C:\Tarcisio\Java\Cadastro\testeSQL\build\classes

compile:

com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host  has failed. java.net.ConnectException: Connection refused: connect

at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)

at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(Unknown Source)

at com.microsoft.sqlserver.jdbc.SQLServerConnection.loginWithoutFailover(Unknown Source)

at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(Unknown Source)

at com.microsoft.sqlserver.jdbc.SQLServerDataSource.getConnectionInternal(Unknown Source)

at com.microsoft.sqlserver.jdbc.SQLServerDataSource.getConnection(Unknown Source)

at TesteSql.main(TesteSql.java:29)

debug:

BUILD SUCCESSFUL (total time: 3 seconds)