Posted on 2008-08-07 14:32
G_G 阅读(2960)
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JspTag
官方
http://jsptags.com/tags/navigation/pager/index.jsp先向 demo 页面样式：
########################################################################################
request.getParameter 中参数
'pager.offset'=6
<%@ page session="false" %>
<%@ taglib uri="http://jsptags.com/tags/navigation/pager" prefix="pg" %>
<%@ page contentType="text/html; charset=gb2312"%>
<html>
<head>
<title>Pager Tag Library Demo</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<!-- 参数展现 -->
request.getParameter 中参数<br/>
<%for(Object otmp : request.getParameterMap().keySet() ){%>
<%="'"+otmp.toString()+"'"%>=<%=request.getParameter(otmp.toString())%><br\>
<%}%>
<form action="<%= request.getRequestURI() %>" method="get">
<br/>
<!--
items=数据总条??
index=分页标明展现格式；"center", "forward" or "half-full".
maxPageItems=每页最大展现行数；
maxIndexPages=每页最大可选页数；
isOffset=数据是否展现；
scope=参数作用范围；
-->
<pg:pager
items="<%= webPalette.length %>"
index="<%= "center" %>"
maxPageItems="<%= 3 %>"
maxIndexPages="<%= 10 %>"
isOffset="<%= true %>"
export="offset,currentPageNumber=pageNumber"
scope="request">
<br/>分页中标签中隐含属性 'offset'=<%=offset%><br/>
<!--
分页需要向下传递的参数;
比如组合查询使用参数.
此为get提交；乱码问题特别注意；
如：parameter（google） 参数由本页面传递给下一分页页面；
-->
<pg:param name="google"/>
<!-- 分页具体表现页面 -->
<pg:index>
<jsp:include page="/WEB-INF/jsp/texticon.jsp" flush="true"/>
</pg:index>
<hr>
<table width="90%" cellspacing="4" cellpadding="4">
<%for (int i = offset.intValue(),l = Math.min(i + 10, webPalette.length);i < l; i++){%>
<pg:item>
<tr><th bgcolor="<%= webPalette[i][0] %>"><font color="<%= webPalette[i][1] %>"><%= i + 1 %></font></th></tr>
</pg:item>
<%}%>
</table>
<hr>
<pg:index>
<jsp:include page="/WEB-INF/jsp/texticon.jsp" flush="true"/>
</pg:index>
</pg:pager>
</center>
</body>
</html>
<%!
private static final String BLACK = "#000000", WHITE = "#ffffff";
private static final String[][] webPalette = {
{ WHITE, BLACK},
{"#cccccc",BLACK},
{"#999999",BLACK},
{"#666666",WHITE},
{"#333333",WHITE},
{ BLACK, WHITE},
{"#ffcc00",BLACK},
{"#ff9900",BLACK},
{"#ff6600",BLACK},
{"#ff3300",WHITE},
{"#99cc00",BLACK},
{"#cc9900",BLACK},
{"#ffcc33",BLACK},
{"#ffcc66",BLACK},
{"#ff9966",BLACK},
{"#ff6633",BLACK},
{"#cc3300",WHITE},
{"#cc0033",WHITE},
{"#ccff00",BLACK},
{"#ccff33",BLACK},
{"#333300",WHITE}
};
private static final String getParam(ServletRequest request, String name,
String defval)
{
String param = request.getParameter(name);
return (param != null ? param : defval);
}
private static final int getParam(ServletRequest request, String name,
int defval)
{
String param = request.getParameter(name);
int value = defval;
if (param != null) {
try { value = Integer.parseInt(param); }
catch (NumberFormatException ignore) { }
}
return value;
}
%>
<!-- 分页具体表现页面 -->
<%@ page session="false" %>
<%@ taglib uri="http://jsptags.com/tags/navigation/pager" prefix="pg" %>
<jsp:useBean id="currentPageNumber" type="java.lang.Integer" scope="request"/>
<font face="fixed">
<!-- 到第一页 -->
<pg:first export="firstPageUrl=pageUrl" unless="current">
<a href="<%= firstPageUrl %>"> |< </a>
</pg:first>
<!-- 每次后退跳10页 -->
<pg:skip export="skipBackPageUrl=pageUrl" pages="<%= -10 %>">
<a href="<%= skipBackPageUrl %>"><<<</a>
</pg:skip>
<!-- 每次后退跳 1 页 -->
<pg:prev export="prevPageUrl=pageUrl">
<a href="<%= prevPageUrl %>"><<</a>
</pg:prev>
<!-- 定位 跳页数 -->
<pg:pages><%
if (pageNumber == currentPageNumber) {
%> <b><%= pageNumber %></b> <%
} else {
%> <a href="<%= pageUrl %>"><%= pageNumber %></a> <%
}
%></pg:pages>
<!-- 每次前进跳 1 页 -->
<pg:next export="nextPageUrl=pageUrl">
<a href="<%= nextPageUrl %>">>></a>
</pg:next>
<!-- 每次后前进10页 -->
<pg:skip export="skipForwardPageUrl=pageUrl" pages="<%= 10 %>">
<a href="<%= skipForwardPageUrl %>">>>></a>
</pg:skip>
<!-- 到最后页 -->
<pg:last export="lastPageUrl=pageUrl" unless="current">
<a href="<%= lastPageUrl %>">>|</a>
</pg:last>
</font>