NodeJS和BootStrap分页效果的实现代码

<ul class="pagination" id="pagination">
</ul>

$(document).ready(function() {
if($("#pagination")){
var pagecount = <%= locals.pagecount %>;
var pagesize = <%= locals.pagesize %>;
var currentpage = <%= locals.currentpage %>;
var counts,pagehtml="";
if(pagecount%pagesize==0){
counts = parseInt(pagecount/pagesize);
}else{
counts = parseInt(pagecount/pagesize)+1;
}
//只有一页内容
if(pagecount<=pagesize){pagehtml="";}
//大于一页内容
if(pagecount>pagesize){
if(currentpage>1){
pagehtml+= '<li><a rel="external nofollow" href="/course/index/'+(currentpage-1)+'">上一页</a></li>';
}
for(var i=0;i<counts;i++){
if(i>=(currentpage-3) && i<(currentpage+3)){
if(i==currentpage-1){
pagehtml+= '<li class="active"><a rel="external nofollow" href="/course/index/'+(i+1)+'">'+(i+1)+'</a></li>';
}else{
pagehtml+= '<li><a rel="external nofollow" href="/course/index/'+(i+1)+'">'+(i+1)+'</a></li>';
}

}
}
if(currentpage<counts){
pagehtml+= '<li><a rel="external nofollow" href="/course/index/'+(currentpage+1)+'">下一页</a></li>';
}
}
$("#pagination").html(pagehtml);
}
});