一種新的編程思路（下）：附 自動分頁2-1 ntPage.jsp

ntPage.jsp(SUN企業級應用的首選)

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<%
    int PAGESIZE = 10;
    int old_PAGESIZE = PAGESIZE ;
 int curPage = 1;
 int pageCount=0;
 int iStart=0;
 int iCount=0;
    int totalRecordCount = ntP.rowCount ;
  boolean onlyOnePage = true ;
 
 try {
   if( request.getParameter("pagesize")!=null )
     PAGESIZE = Integer.parseInt(request.getParameter("pagesize"));
   if( request.getParameter("pagesize_post")!=null )
     PAGESIZE = Integer.parseInt(request.getParameter("pagesize_post")); 
 }catch(Exception ePage13){
  PAGESIZE = old_PAGESIZE ;
 }
  
 if( PAGESIZE < totalRecordCount )
   onlyOnePage = false ;
 try {
   curPage = Integer.parseInt(request.getParameter("page"));
 }catch(Exception e){
  curPage = 1;
 }
 if ( totalRecordCount > 0)
 {
  pageCount = totalRecordCount / PAGESIZE;
  if ( totalRecordCount % PAGESIZE != 0)
    pageCount += 1;
  if (curPage < 1)
    curPage = 1;
  if (curPage > pageCount)
    curPage = pageCount;
  
  iStart = (curPage-1) * PAGESIZE;
  iCount = totalRecordCount - iStart;
  if (iCount > PAGESIZE)
    iCount = PAGESIZE;
  iCount = iStart + iCount ; 
 }
%>