求一个清晰点的action jsp分页显示的方法。。。。。。。。。

public ActionForward doView2(ActionMapping mapping, ActionForm form,

			HttpServletRequest request, HttpServletResponse response)

	throws Exception {

		DynaActionForm dyForm = (DynaActionForm) form;

		com.ebuilds.util.common.LoginInfo logininfo = (com.ebuilds.util.common.LoginInfo) request.getSession().getAttribute("LoginInfo");

		String username = logininfo.getName();

		String uid = null;

		List list = new ArrayList();

		try {

			DB db = new DB();

			ResultSet rs = db.qu("select * from userinfo where username = '" +

					username+"'");

			while(rs.next()){

				uid = rs.getString("id");

			}

			if(uid != null){

				ResultSet rs1 = db.qu("select * from userinfo where pid = '" +

						uid+"'");

				while(rs1.next()){

					Map map = new HashMap();

					map.put("id", rs1.getString("id"));

					map.put("pid", rs1.getString("pid"));

					map.put("username", rs1.getString("username"));

					map.put("name", rs1.getString("name"));

					list.add(map);

				}

			}

			db.close();

		} catch (SQLException e1) {

			e1.printStackTrace();

		}

		dyForm.set("dtos", list);

		return mapping.findForward("doView2");

	}