private   DBOperation getDB(){
		DBOperation dbo1=new DBOperation();
		dbo1.setDriver("oracle.jdbc.driver.OracleDriver");
		dbo1.setUrl("jdbc:oracle:thin:@localhost:1521:orcl");
		dbo1.setUser("supermarket");
		dbo1.setPassWord("123456");
		return dbo1;
	}