像一顆晨土

package ?net.jf.ajax.business;

import ?java.util.ArrayList;
import ?java.util.List;

public ? class ?PageManager? {
???? private ? static ?List?names;
???? {
????????names? = ? new ?ArrayList();
????????names.add( " black " );
????????names.add( " black " );
????????names.add( " black " );
????????names.add( " black " );
????????names.add( " blue " );
????????names.add( " blue " );
????????names.add( " blue " );
????????names.add( " blue " );
????????names.add( " blue " );
????????names.add( " red " );
????????names.add( " yellow " );
????????names.add( " blue " );
????????names.add( " green " );
????????names.add( " blue " );
????????names.add( " black " );
????????names.add( " green " );
????????names.add( " black " );
????}
???? /**?*/ /**
?????*?查詢函數
?????*? @param ?pageNum?頁碼
?????*? @param ?pageSize?頁大小
?????*? @param ?condition?查詢條件
?????*? */
???? public ?List?query( int ?pageNum, int ?pageSize,String?condition) {
????????List?tmpNames? = ?getNames(condition);
????????List?ret? = ? new ?ArrayList();
???????? int ?start? = ?(pageNum? - ? 1 )? * ?pageSize;
???????? int ?end? = ?start? + ?pageSize? - ? 1 ;
???????? if (start? >= ?tmpNames.size())
???????????? return ?ret;
???????? for ( int ?i? = ? 0 ;?i? < ?tmpNames.size();?i? ++ ) {
???????????? if (i? >= ?start? && ?i? <= ?end)
????????????????ret.add(tmpNames.get(i));
????????}
???????? return ?ret;
????}
???? /**?*/ /**
?????*?按條件查詢所有名字
?????*? */
???? private ?List?getNames(String?condition)? {
???????? if ( null ? == ?condition)? return ?names;
????????List?ret? = ? new ?ArrayList();
????????
???????? for ( int ?i? = ? 0 ;?i? < ?names.size();?i? ++ ) {
???????????? if (condition.equals(names.get(i)))
????????????????ret.add(names.get(i));
????????}
???????? return ?ret;
????}
???? /**?*/ /**
?????*?獲得條件指定的名字的數量
?????*? */
???? public ? int ?getSize(String?condition) {
???????????? return ?getNames(condition).size();
????}
}

<% @?page?language = " java " ? import = " java.util.* " ?pageEncoding = " UTF-8 " %>
<% @?taglib?uri = " http://jsptags.com/tags/navigation/pager " ?prefix = " pg " ? %>
<%
request.setCharacterEncoding( " UTF-8 " );
%>
< jsp:useBean?id? = ? " pm " ?scope = " page " ? class = " net.jf.ajax.business.PageManager " />
<! DOCTYPE?HTML?PUBLIC? " -//W3C//DTD?HTML?4.01?Transitional//EN " >
< html >
?? < head >
?? </ head >
??
?? < body >
???? < form?name = " cc " ?action = " pager.jsp " ?method = " post " >
???????? < input?type = " text " ?name = " name " ?value = " <%=request.getParameter( " name " )%> " />< input?type = " submit " ?value = " search " />
???? </ form >
???? < pg:pager
????items = " <%=?pm.getSize(request.getParameter( " name " ))?%> "
????index = " center "
????maxPageItems = " 5 "
????maxIndexPages = " 5 "
????isOffset = " <%=?false?%> "
????export = " pageOffset,currentPageNumber=pageNumber "
????scope = " request " >
???? <%
???? int ?pageNum? = ? 1 ;
???? if (request.getParameter( " pageNo " )? != ? null )
????????pageNum? = ?Integer.valueOf(request.getParameter( " pageNo " ));
???? int ?pageSize? = ? 5 ;
??????List?result? = ?pm.query(pageNum,pageSize,request.getParameter( " name " ));
?? %>
???? < table >
???????? < tr >
???????????? < td > result </ td >
???????? </ tr >
???????? <% for ( int ?i? = ? 0 ;?i? < ?result.size();?i? ++ ) { %>
???????? < tr >
???????????? < td >
???????????????? <%= result.get(i) %>
???????????? </ td >
???????? </ tr >
???????? <% } %>
???? </ table >
????
???? < pg:param?name = " name " />
???? < pg:index >
???????? < jsp:include?page = " /pagination/jsptags.jsp " ?flush = " true " />
???? </ pg:index >
???? </ pg:pager >
?? </ body >
</ html >

<% @?page?session = " false " ?contentType = " text/html;charset=utf-8 " %>
<% @?taglib?uri = " http://jsptags.com/tags/navigation/pager " ?prefix = " pg " ? %>
< pg:first >
?? < a?href = " <%=?pageUrl?%>&pageNo=<%=?pageNumber?%> " >< nobr > [?# <%= ?pageNumber? %> ?首頁?] </ nobr ></ a >
</ pg:first >
< pg:skip?pages = " <%=?-5?%> " >
?? < a?href = " <%=?pageUrl?%>&pageNo=<%=?pageNumber?%> " >< nobr > [?# <%= ?pageNumber? %> ?后退?] </ nobr ></ a >
</ pg:skip >
< pg:prev >
?? < a?href = " <%=?pageUrl?%>&pageNo=<%=?pageNumber?%> " >< nobr > [?# <%= ?pageNumber? %> ?前一頁?] </ nobr ></ a >
</ pg:prev >
< pg:pages >
??? < a?href = " <%=?pageUrl?%>&pageNo=<%=?pageNumber?%> " ><%= ?pageNumber? %></ a > ?
</ pg:pages >
< pg:next >
?? < a?href = " <%=?pageUrl?%>&pageNo=<%=?pageNumber?%> " >< nobr > [?下一頁?# <%= ?pageNumber? %> ?] </ nobr ></ a >
</ pg:next >
< pg:skip?pages = " <%=?5?%> " >
?? < a?href = " <%=?pageUrl?%>&pageNo=<%=?pageNumber?%> " >< nobr > [?跳進?# <%= ?pageNumber? %> ?] </ nobr ></ a >
</ pg:skip >
< pg:last >
?? < a?href = " <%=?pageUrl?%>&pageNo=<%=?pageNumber?%> " >< nobr > [?尾頁?# <%= ?pageNumber? %> ?] </ nobr ></ a >
</ pg:last >