本文实例为大家分享了Java分页展示的具体代码,供大家参考,具体内容如下
先上图吧,大致如图,也就提供个思路(ps:使用了SSH框架)
前台JSP页面
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<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
< html >
< head >
< title >数据交易猫</ title >
< script type = "text/javascript" >
//1分页下,动态添加disable给分页按钮
/*
$(function(){
var myPageId="#"+$("#hidCurrentPage").val();
var myPageAId="#"+$("#hidCurrentPage").val()+" a";
$(myPageAId).addClass('main-bgcolor');
$(myPageAId).attr('href','javascript:void(0)')
$(myPageId).addClass('disabled');
$(myPageId).addClass('disabledControl');
})
*/
//
$(function(){
})
//根据页数查询数据列表
function queryRequirListByPage(i) {
var pageNo=i;
var sortValue=$('#hidSortValue').val();
$.ajax({
url:'${pageContext.request.contextPath}/bid/reAction_queryRequirListByPage.action',
type:'POST',
data:{
sortValue:sortValue,
pageNo:pageNo
},
success:function(datas){
$('#requireContentDiv').html(datas);
},
error:function(){
alert("失败");
},
});
}
//根据下拉查询数据列表
function selectPage(obj){
var pageNo=obj.options[obj.selectedIndex].value;
var sortValue=$('#hidSortValue').val();
$.ajax({
url:'${pageContext.request.contextPath}/bid/reAction_queryRequirListByPage.action',
type:'POST',
data:{
sortValue:sortValue,
pageNo:pageNo
},
success:function(datas){
$('#requireContentDiv').html(datas);
},
error:function(){
alert("失败");
},
});
}
//根据下拉选择排序方式
function selectSort(obj){
var sortValue = obj.options[obj.selectedIndex].value;
var pageNo =1;
$.ajax({
url:'${pageContext.request.contextPath}/bid/reAction_queryRequirListByPage.action',
type:'POST',
data:{sortValue:sortValue,
pageNo:pageNo
},
success:function(datas){
$('#requireContentDiv').html(datas);
},
error:function(){
alert("失败");
},
});
}
$(document).ready(function(){
var backSortValue=$('#backSortValue').val();
console.log("backSortValue"+backSortValue)
$("#category option").each(function(){
var thisId='#'+this.id;
var thisValue=this.value;
if(backSortValue==thisValue){
$(thisId).attr('selected','selected');
}
});
})
</ script >
</ head >
< body >
<!-- 内容-->
< div class = "well" >
<!-- 标题-->
< div class = "box" >< h3 >< span class = "glyphicon glyphicon-list" ></ span >需求列表</ h3 ></ div >
<!-- 筛选条件-->
< div class = "box" >
< div class = "row" >
< div class = "col-xs-12" >
< span >筛选:按</ span >
< select id = "category" name = "category" onchange = "selectSort(this)" >
< option id = "categoryTime" value = "publishDatetime" >最新</ option >
< option id = "categoryPrice" value = "price" >价格降序</ option >
< input id = "backSortValue" type = "hidden" value = "${sortValue}" >
</ select >
< hr class = "mrgZero mrgTopSma" />
</ div >
</ div >
</ div >
<!-- 内容-->
< input type = "hidden" name = "hidCurrentPage2" id = "hidCurrentPage" value = "${currentPage}" >
< input type = "hidden" id = "hidAllPage" value = "${allPage}" >
< input type = "hidden" id = "hidSortValue" value = "${sortValue}" >
< s:iterator value = "#requiList" >
< div class = "data-down-box" >
< div class = "row" >
< div class = "col-xs-12" >
< h4 class = "ellipsis" >< a href = "${pageContext.request.contextPath}/bid/bidAction_queryById?id=${id}" rel = "external nofollow" onclick = "reward()" >${title}</ a ></ h4 >
</ div >
</ div >
< div class = "row mrgTopSma" >
< div class = "col-xs-12 " >
< p class = "data-provider padLeftBig sec-color ellipsis" >悬赏积分:< span >${price}</ span ></ p >
< p class = "data-intro padLeftBig ellipsis sec-color" >需求描述:< span >${requirementDescription}</ span ></ p >
</ div >
</ div >
< hr />
</ div >
</ s:iterator >
<!-- 分页 -->
< div id = "rePagerDiv" class = "rePagerDiv box" >
< nav >
< ul class = "pager" >
<!-- 判断当前页是否位1,如果不为1则显示上一页, -->
< s:if test = "1 == #currentPage" >
</ s:if >
< s:else >
< li >
< a href = "javascript:void(0)" rel = "external nofollow" rel = "external nofollow" rel = "external nofollow" rel = "external nofollow" aria-label = "Previous" onclick = "queryRequirListByPage(${currentPage-1})" >
< span aria-hidden = "true" >«</ span >
</ a >
</ li >
</ s:else >
<!-- 首页 --> < li >< a href = "javascript:void(0)" rel = "external nofollow" rel = "external nofollow" rel = "external nofollow" rel = "external nofollow" onclick = "queryRequirListByPage(1)" >首页</ a ></ li >
< li >
< span >< span class = "main-color" >${currentPage}</ span >/ ${allPage}页</ span >
</ li >
<!-- 尾页 --> < li >< a href = "javascript:void(0)" rel = "external nofollow" rel = "external nofollow" rel = "external nofollow" rel = "external nofollow" onclick = "queryRequirListByPage(${allPage})" >尾页</ a ></ li >
<!-- 判断当前页和总页数,小于则显示下一页, -->
< s:if test = "#currentPage < #allPage" >
< li >
< a href = "javascript:void(0)" rel = "external nofollow" rel = "external nofollow" rel = "external nofollow" rel = "external nofollow" aria-label = "Next" onclick = "queryRequirListByPage(${currentPage+1})" >
< span aria-hidden = "true" >»</ span >
</ a >
</ li >
</ s:if >
< li >
< span class = "skipPageSpan" >跳转到第
< select onchange = "selectPage(this)" >
< s:iterator var = "lst" begin = "1" end = "#allPage" step = "1" >
< s:if test = "%{#lst == #currentPage}" >
< option selected = "selected" value="<s:property/>" >< s:property /></ option >
</ s:if >
< s:else >
< option value="<s:property/>" >< s:property /></ option >
</ s:else >
</ s:iterator >
</ select >
页
</ span >
</ li >
</ ul >
</ nav >
</ div >
</ div >
< hr />
</ body >
</ html >
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action
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//查询需求列表
public String queryRequirListByPage(){
int pageSize= 5 ; //每页记录
String hql= "select r from Requirement r where r.reStatus !=2 " ;
if (sortValue == null || sortValue.length() <= 0 ){
hql=hql+ "order by r.publishDatetime desc" ;
ActionContext.getContext().put( "sortValue" , "publishDatetime" ); //当前页码条件
session.put( "sessionReqSortValue" , "publishDatetime" );
} else {
hql=hql+ "order by r." +sortValue+ " desc" ;
ActionContext.getContext().put( "sortValue" , sortValue); //当前页码条件
session.put( "sessionReqSortValue" ,sortValue);
}
long icount=requirementService.countAllRe(); //总记录数
long allPage; //总页数
//判断是否能整除,能则直接,不能则+1;
if ((icount%pageSize)== 0 ){
allPage=icount/pageSize;
}
else {
allPage=(icount/pageSize)+ 1 ;
}
System.out.println( "总记录:" +icount+ ";总页数:" +allPage+ ";当前页码:" +pageNo);
List<Requirement> requiList=requirementService.queryByPage(hql, pageNo, pageSize);
ActionContext.getContext().put( "requiList" , requiList); //需求列表
ActionContext.getContext().put( "icount" , icount); //总记录数
ActionContext.getContext().put( "allPage" , allPage); //总页数
ActionContext.getContext().put( "currentPage" , pageNo); //当前页码
session.put( "sessionCurrentPage" , pageNo);
return "requireContent" ;
}
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service
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public long countAllRe() {
return requirementDao.countAllRe();
}
public List<T> queryByPage(String hql, int pageNo, int pageSize) {
return requirementDao.queryByPage(hql, pageNo, pageSize);
}
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dao
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//这里可能会报错,就是直接查询数据列表(使用了SSH)
public long countAll() {
List<?> l = getSession().createQuery( "select count(*) from "
+ clazz.getSimpleName()).list();
if (l != null && l.size() == 1 )
{
return (Long)l.get( 0 );
}
return 0 ;
}
public List<T> queryByPage(String hql, int pageNo, int pageSize) {
return getSession()
.createQuery(hql)
.setFirstResult((pageNo - 1 ) * pageSize)
.setMaxResults(pageSize)
.list();
}
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以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。