public class Test {
    public static void main(String[] args) throws Exception {
        Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
        String url = "jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=数据库名";
        String user = "sa";
        String password = "";
        Connection conn = DriverManager.getConnection(url);
        
        String sql = "select * from star";
        java.sql.PreparedStatement ps = conn.prepareStatement(sql);
        ResultSet rs = ps.executeQuery();
        while (rs.next()) {
            System.out.print(rs.getString(1)+"   ");
            System.out.println(rs.getString(2));
        }
    }
}

Exception in thread "main" java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Error establishing socket.
    at com.microsoft.jdbc.base.BaseExceptions.createException(Unknown Source)
    at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
    at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
    at com.microsoft.jdbc.sqlserver.tds.TDSConnection.<init>(Unknown Source)
    at com.microsoft.jdbc.sqlserver.SQLServerImplConnection.open(Unknown Source)
    at com.microsoft.jdbc.base.BaseConnection.getNewImplConnection(Unknown Source)
    at com.microsoft.jdbc.base.BaseConnection.open(Unknown Source)
    at com.microsoft.jdbc.base.BaseDriver.connect(Unknown Source)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at Test.main(Test.java:9)