连接sqlserver2000用的字符串连接

	static Connection conn;
	protected static String dbClassName = "com.microsoft.jdbc.sqlserver.sqlServerDriver";
	protected static String dbUrl = "jdbc:microsoft:sqlserver://localhost:1433;"
			+ "DatabaseName=db_database28;SelectMethod=Cursor";
	protected static String dbUser = "sa";
	protected static String dbPwd = "";
	static {
		try {
			if (conn == null) {
				Class.forName(dbClassName).newInstance();
				conn = DriverManager.getConnection(dbUrl,dbUser,dbPwd);
			}
		} catch (ClassNotFoundException e) {
			e.printstacktrace();
			JOptionPane.showMessageDialog(null,"请将sql Server 2000的JDBC驱动包复制到lib文件夹中。");
			System.exit(-1);
		} catch (Exception e) {
			e.printstacktrace();
		}
	}