JSTL 分页
<c:set var="basePath">${pageContext.request.scheme}://${pageContext.request.serverName}:${pageContext.request.serverPort}${pageContext.request.contextPath}/</c:set><base href="${basePath}">
<c:set var="columns" value="5"></c:set>
<table cellspacing="0" cellpadding="0" >
<tr>
<th style="text-align:center" colspan="${columns }"><h3>列表</h3></th>
</tr>
<c:set var="page" value="${page}"></c:set>
<c:forEach var="word" varStatus="status" items="${page.result}">
<c:if test="${status.index%columns == 0}"><tr></c:if>
<td><div>${word}</div><div class="colon">:</div><div class="view">${word }</div></td>
<c:if test="${status.last&&status.index%columns != (columns-1)}">
<c:forEach begin="1" end="${columns-1 - status.index%columns}" step="1">
<td></td>
</c:forEach>
</c:if>
<c:if test="${status.index%columns == columns-1||status.last}"></tr></c:if>
</c:forEach>
<c:set var="btns" value="5"></c:set>
<c:set var="halfbtns" value="${btns%2==0?btns/2:(btns-btns%2)/2}"></c:set>
<c:set var="middlebtns" value="${halfbtns + 1}"></c:set>
<c:set var="pgNum" value="${page.pageNo}"></c:set>
<c:set var="pgSize" value="${page.pageSize}"></c:set>
<c:set var="totalCount" value="${page.totalCount}"></c:set>
<c:set var="totalPage" value="${page.totalPage}"></c:set>
<c:if test="${totalCount - pgSize>0}">
<tr>
<td colspan="${columns }">
<c:forEach begin="${pgNum<middlebtns?1:((pgNum+halfbtns-totalPage)>0?((totalPage-btns + 1 > 0)?(totalPage-btns + 1):1):(pgNum-halfbtns))}" end="${pgNum<middlebtns?((totalPage>btns)?btns:totalPage):(pgNum>(totalPage-halfbtns)?totalPage:(pgNum+halfbtns))}" varStatus="stat">
<c:if test="${pgNum>1&&stat.first}"><a class="pnBtn" href="${basePath}servlet?pageno=1&pagesize=${pgSize}">首页</a><a class="pnBtn" href="${basePath}servlet?pageno=${pgNum-1}&pagesize=${pgSize}">上一页</a><c:if test="${stat.index>1}">...</c:if></c:if>
<c:if test="${stat.index<=totalPage}">
<c:choose>
<c:when test="${stat.index == pgNum}">
<span class="current">${stat.index }</span>
</c:when>
<c:otherwise>
<a href="${basePat}hservlet?pageno=${stat.index}&pagesize=${pgSize}">${stat.index }</a>
</c:otherwise>
</c:choose>
</c:if>
<c:if test="${(pgNum-totalPage<0)&&stat.last}"><c:if test="${stat.index<totalPage}">...</c:if><a class="pnBtn" href="${basePath}servlet?pageno=${pgNum+1}&pagesize=${pgSize}">下一页</a><a class="pnBtn" href="${basePath}servlet?pageno=${totalPage}&pagesize=${pgSize}">末页</a></c:if>
</c:forEach>
</td>
</tr>
</c:if>
</table>
以显示5个按钮为例,
对于起始页,即显示的第一个页码按钮
1.如果当前页小于3,起始页固定为1,
2.如果当前页大于3(包括3),
1.当前页与尾页的差少于2,
1.如果总页数在5页以上(包括5),起始页固定为尾页数过来第5个
2.总页数小于5,起始页固定为1
2.正常情况,起始页为当前页-2
对于末页,即显示的最后一个页码按钮
1.如果当前页小于3
1.如果总页数比5要大,末页为5
2.比5小,末页为尾页
2.当前页大于3
1.当前页与尾页差小于2,末页为尾页
2.否则末页为当前页+2
页:
[1]