v2.1
done:
1.create member and insert into DB.(2013/06/25)
2.catch exception detaily.
3.enquire member by muti contition.(2013/06/26)
4.update member.
5.delete member.(2013/06/28)
6.Refining the construction of create/enquire/update/delete.
7.update environment.(2013/06/30)
undone:
1.validate user input in create.jsp by JavaScript.(2013/06/25)
2.validate user data in create_check.jsp.
3.validate user input in enquire.jsp by JavaScript.(2013/06/26)
4.validate user data in enquire_check.jsp.
5.validate user input in enquire.jsp by JavaScript.
6.validate user data(especially date) in update_detail.jsp.
7.validate user input in input pages(create/delete/update/enquire)(2013/06/28)