jsp向数据库添加记录问题

[phafer]

要插入的数据中有日期，格式是怎么写的，谢谢？
String sql = "INSERT INTO T_user(user_id, login_name, user_name, password, group_id, " +
"valid, register_time, type, email, phone)" +
" VALUES(1, 'login_t', 'pb', '1',10000,1, '#2002-2-
~~~~~这里
2#',1,'[e-mail]','81634') ";