jsp分页的基本实现

<%@page import="paging.Paging"%> <%@page import="java.util.List"%> <% Paging paging = new Paging(); int currentPage = paging.currentPage(request.getParameter("page")); List<Integer> list = paging.getList(currentPage, 5); for (Integer integer : list) { %> <%=integer%> <% } %> <input type="button" class="button" value="Pre" οnclick="location='paging.jsp?page=<%=currentPage - 1%>'" /> Page: <%=currentPage%> <input type="button" class="button" value="Next" οnclick="location='paging.jsp?page=<%=currentPage + 1%>'" />
package paging; import java.util.ArrayList; import java.util.LinkedList; import java.util.List; public class Paging { public List<Integer> getList(int page, int rowsPerPage) { int start = (page - 1) * rowsPerPage + 1; int end = start + rowsPerPage; List<Integer> list = new LinkedList<Integer>(); int[] is = new int[100]; for (int i = 0; i < is.length; i++) { list.add(i); } List<Integer> list2 = new ArrayList<Integer>(); for (int i = start; i < end; i++) { list2.add(i); } return list2; } public int currentPage(String pageStr) { int currentPage = 1; if (pageStr != null) { currentPage = Integer.parseInt(pageStr); } return currentPage; } }