com.microsoft.sqlserver.jdbc.SQLServerException

يحدث هذا الاستثناء عندما اريد الاتصال بقاعدة بيانات SQL Server 2000

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.connect(Unknown Source)
	at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(Unknown Source)
	at java.sql.DriverManager.getConnection(DriverManager.java:525)
	at java.sql.DriverManager.getConnection(DriverManager.java:193)
	at test.MyConnect.<init>(MyConnect.java:18)
	at test.MyConnect.main(MyConnect.java:28)

الكود

package test;
import java.sql.*;
import com.microsoft.sqlserver.jdbc.SQLServerDriver;
public class MyConnect{
	private Connection conn;
	public MyConnect()throws SQLException {
		try {
			Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		}
		try {
		   conn = DriverManager.getConnection("jdbc:sqlserver://127.0.0.1;DatabaseName=AddressBook;user=uthman,password=123");
		} catch (SQLException e) {
			e.printStackTrace();
		}
	}
	public static void main(String[] args)throws SQLException {
		monitor.MonitorManager.setMonitorAsDefaultIO();
		try {
			MyConnect mc=new MyConnect();
		} catch (SQLException e) {
			e.printStackTrace();
		}
	}
}