关于释放资源的问题！！！！！

比如有这样一个连接：www.hhhh.com/asd.jsp?a=LLL 点了之后进入了一个jsp也面中心内容如下： <% 
                      String bookid1 = request.getParameter("bookid"); 
                      String bookid2 = new String(bookid1.getBytes("ISO-8859-1"),"gb2312"); 
                      String yw = request.getParameter("yw"); 
                      List xx = DBHelper.getxx(bookid1); 
                      
                      List jj = DBHelper.getdj(bookid1); 
                        String az = new String((jj.get(0)).toString().getBytes("ISO-8859-1"),"gb2312"); 
                         
                         
                        List j = DBHelper.getwj(bookid1); 
                        String ac = new String((j.get(0)).toString().getBytes("ISO-8859-1"),"gb2312"); 
                         
                        List k = DBHelper.getpj(bookid1); 
                        String ax = new String((k.get(0)).toString().getBytes("ISO-8859-1"),"gb2312"); 
                         
                        List dd = DBHelper.getdd(bookid1); 
                        List qq = DBHelper.getqq(bookid1); 
                        List cs = DBHelper.getcs(bookid1); 
                        List ses = DBHelper.getses(bookid1); 
                        List shanxibed = DBHelper.shanxibed(bookid1); 
                        List shanxizzao = DBHelper.shanxizzao(bookid1); 
                        List shanxixzao = DBHelper.shanxixzao(bookid1); 
                        List shanxicy = DBHelper.shanxicy(bookid1); 
                        List shanxikl = DBHelper.shanxikl(bookid1); 
                        List shanxisb = DBHelper.shanxisb(bookid1); 
                        List shanxiqt = DBHelper.shanxiqt(bookid1); 
                        List asd = DBHelper.qqq(bookid1);       
              %> 
out.write(" <form action='' name='f' method='post'>"+ 
" <table width='500' cellpadding='0' cellspacing='0' align='left'>" + 
" <tr> <td bgcolor='#027bce'> <span class='STYLE46'>房型 </td>" + 
" <td bgcolor='#027bce'> <span class='STYLE46'>门市价 </td>" + 
" <td bgcolor='#027bce'> <span class='STYLE46'>淡季价(元) </td> <td bgcolor='#027bce'> <span class='STYLE46'>平季价(元) </td> <td bgcolor='#027bce'> <span class='STYLE46'>旺季价(元) </td> <td bgcolor='#027bce'> <span class='STYLE46'>早餐 </td> <td bgcolor='#027bce'> <span class='STYLE46'>床型 </td> <td bgcolor='#027bce'> <span class='STYLE46'>宽带 </td> </tr>"); 
for(int i=0; i <a.size(); i++) 
{ 
    out.write(" <tr> <td align='left'> <span class='STYLE46'>"+new String(a.get(i).toString().getBytes("ISO-8859-1"),"gb2312")+" </td>"); 
    out.write(" <td> <span class='STYLE46'>"+new String(h.get(i).toString().getBytes("ISO-8859-1"),"gb2312")+" </td>"); 
    out.write(" <td> <span class='STYLE46'>"+new String(b.get(i).toString().getBytes("ISO-8859-1"),"gb2312")+" </td>"); 
    out.write(" <td> <span class='STYLE46'>"+new String(d.get(i).toString().getBytes("ISO-8859-1"),"gb2312")+" </td>"); 
    out.write(" <td> <span class='STYLE46'>"+new String(c.get(i).toString().getBytes("ISO-8859-1"),"gb2312")+" </td>"); 
    out.write(" <td> <span class='STYLE46'>"+new String(e.get(i).toString().getBytes("ISO-8859-1"),"gb2312")+" </td>"); 
    out.write(" <td> <span class='STYLE46'>"+new String(f.get(i).toString().getBytes("ISO-8859-1"),"gb2312")+" </td>"); 
    out.write(" <td> <span class='STYLE46'>"+new String(g.get(i).toString().getBytes("ISO-8859-1"),"gb2312")+" </td> </tr>"); 
    out.write(" <tr> <td colspan=8> <img src='Hotel Express International4.files/fg.jpg' width='500' height='1'> </td> </tr>"); 
} 
out.write(" </tr> </table> </form>"); 
现在在这个页面里进行了对数据库的操作，操作完之后要释放资源，那现在要怎么样释放资源？ 
是就写在这个JSP页面里？怎么写？