Paging in jsp

Question

please sir
i need ur help
to display large number of items retrived from database
in page by page style
for ex display 10 records in each page then click next to view the second 10 records asd soo on
thank u

Answer 1

First I will suggest you to use the "LIMIT" clause in your SQL to limit the num. of record you retrieve for each page. ("LIMIT x,y" can be used to retrieve only y rows, starting at the (x+1)th row)
So each time you go to the page, the starting row will be determined by a parameter, say, pageStartIndex, which you will get from request.getParameter("pageStartIndex"). You will set it to x as the page start index.
Then you will try to create those "Next" & "Previous" link by passing the new pageStartIndex in the URL. You will have to do some manupilation on the new pageStartIndex.
e.g. assume the current pageStartIndex = 0 and you want to display 10 rows per page.
Then in the "Next" link, you will pass a variable "pageStartIndex" which has a value of 0 + 10 = 10
So your "Next" link will be something like:
label
Of course, the value 10 in the link has to be computed dynamically.
Put everything together you will have something like this:
<%
String pageStartIndex = request.getParameter
("pageStartIndex");
String rowPerPage = request.getParameter("rowPerPage");
if (pageStartIndex == null) pageStartIndex = "0";
if (rowPerPage == null) rowPerPage = "10";
int nextPageIndex = Integer.parseInt(pageStartIndex) + Integer.parseInt(rowPerPage);
%>
<a href="samePage.jsp?pageStartIndex=<%=Integer.toString(nextPageIndex)%>">Next</a>