Bus from Xiaoshan Airport to Hangzhou Airport 15 yuan/person.
The stops to Hangzhou are Hangzhou City Station and Wulinmen Square, the terminal station.
If you go to Huzhou, you can buy a train ticket at Chengzhan Railway Station. Because it is a short trip, the station ticket can be tolerated and the train ticket will not be too tight.
If not, you can go to Hangzhou South Bus Station or Hangzhou East Bus Station near Chengzhan Railway Station (you can take a taxi if you are not familiar with the bus). There must be a coach to Huzhou.