对数据库信息的查寻

public List select(){
		int row = 0;
		String sql = "select *from master";
		List list = new ArrayList();
		try {
			conn = getConnection();
			stmt = conn.prepareStatement(sql);
		    rst = stmt.executeQuery();
		    while(rst.next()) {
		    	int id = rst.getInt("id");
		    	String name = rst.getString("name");
		    	String password = rst.getString("password");
		    	int money = rst.getInt("money");
		    	Master master = new Master();
		    	master.setId(id);
		    	master.setName(name);
		    	master.setPassword(password);
		    	master.setMoney(money);
		    	list.add(master);
		    }
		} catch (SQLException e) {
			e.printStackTrace();
		}finally {
			closeAll();
		}
		return list;
	}