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基于jQuery和Bootstrap框架实现仿知乎前端动态列表效果

时间:2024-3-2 08:11     作者:韩俊     分类: Javascript


最近基于jQuery和Bootstrap框架实现了一个仿知乎动态列表的前端效果,基本实现了和知乎动态列表相同的效果。如下:

1.基本列表项

2.列表项全文展开、折叠(图中为展开第一项)

3.评论项展开

4.列表数据加载(加载全部)

5.带动画效果的点赞功能

6.回复列表的hover显示功能

HTML代码如下:

<!DOCTYPE html> 
<html> 
<head> 
<meta charset="utf-8" /> 
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE9" /> 
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" /> 
<link rel="stylesheet" href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css" /> 
<link rel="stylesheet" href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap-theme.min.css" /> 
<script src="//cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script> 
<script src="//cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script> 
<script src="scripts/jquery.json.min.js"></script> 
<link rel="stylesheet" href="styles/main.css" /> 
<script src="scripts/test.js"></script> 
</head> 
<body> 
<div style="display:none;"> 
<div id="t_dn" class="dynamic_node"> 
<meta class="dn_id" content=""/> 
<meta class="dn_user_id" content=""/> 
<div class="dn_left"> 
<div class="dn_user_avatar"><a href=""> 
<img class="img-thumbnail" src="" /></a> 
</div> 
<div class="dn_zannum"> 
<span></span> 
</div> 
<div class="dn_dianzan"> 
<a href=""><span class="glyphicon glyphicon-thumbs-up" aria-hidden="true"></span></a> 
</div> 
</div> 
<div class="dn_right"> 
<div class="dn_title"> 
<span class="glyphicon glyphicon-share-alt" aria-hidden="true"></span> 
<a href=""><span></span></a> 
</div> 
<div class="dn_right_top"> 
<div class="dn_username"> 
<a href=""><span class="dn_username_name"></span></a> 
<span class="dn_username_signature"></span> 
</div> 
<div class="dn_content_close1"> 
<a href=""> <span class="glyphicon glyphicon-triangle-bottom" aria-hidden="true"></span> </a> 
</div> 
</div> 
<div class="dn_content"> 
<a href="" class="dn_content_link"> <span class="dn_content_digest"></span> </a> 
<span class="dn_content_text"></span> 
</div> 
<div class="dn_action"> 
<div class="dn_content_close2"> 
<a href=""> <span class="glyphicon glyphicon-triangle-top" aria-hidden="true"></span> </a> 
</div> 
<a href=""><span class="dn_action_report">举报</span></a> 
<a href=""><span class="dn_action_share">分享</span></a> 
<a href=""><span class="dn_action_comm">103条评论</span></a> 
<span class="dn_action_time"></span> 
</div> 
<div class="dn_comm"> 
<div class="dn_comm_items"> 
</div> 
<div class="dn_comm_showall"> 
<button id="dn_comm_showall_button" type="button" class="btn btn-default btn-xs">显示全部评论</button> 
</div> 
<div class="dn_comm_replay"> 
<div class="dn_comm_replay_field"> 
<textarea class="form-control" rows="2" placeholder="写下你的评论..."></textarea> 
</div> 
<div class="dn_comm_replay_buttoms"> 
<button type="button" class="btn btn-primary btn-sm">评论</button> 
<a href="" class="dn_comm_replay_buttoms_cancel">取消</a> 
</div> 
</div> 
</div> 
</div> 
</div> 
<div id="t_dn_comm" class="dn_comm_item"> 
<meta class="dn_comm_id" content=""> 
<div class="dn_comm_item_left"> 
<div> 
<a href="#"><img class="img-rounded" src="images/user.png" /> </a> 
</div> 
</div> 
<div class="dn_comm_item_mid"> 
<div class="dn_comm_item_middle_username"> 
<a href="#"><span>用户名</span></a> 
</div> 
<div class="dn_comm_item_mid_content"> 
<span></span> 
</div> 
<div class="dn_comm_foot"> 
<div class="dn_comm_foot_left"> 
<span>2015-09-08 12:00:09</span> 
</div> 
<div class="dn_comm_item_mid_action"> 
<a href="#"><span>回复</span></a> 
<a href="#"><span>举报</span></a> 
</div> 
</div> 
</div> 
<div class="dn_comm_item_right"> 
<div class="dn_comm_zannum"> 
<span>5</span> 
</div> 
<div class="dn_comm_dianzan"> 
<a href="#"> <span class="glyphicon glyphicon-thumbs-up" aria-hidden="true"></span> </a> 
</div> 
</div> 
</div> 
</div> 
<div class="global"> 
<div class="list_layout"> 
</div> 
<div class="load_flag"> 
<button id="load_flag_button" type="button" class="btn btn-default btn-s">加载更多</button> 
<div id="load_flag_info"><small>没有更多了 !</small></div> 
</div> 
</div> 
</body> 
</html> 

css文件代码如下(main.css):

<style> 
/* global navigadion */ 
.nav{ 
width:100%; 
height:3.5em; 
padding-top:0em; 
vertical-align:middle; 
background-image: -moz-linear-gradient(top, #99FFFF, #FFFFFF); 
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #99FFFF), color-stop(1, #FFFFFF)); 
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#99FFFF', endColorstr='#FFFFFF', GradientType='0'); 
} 
.nav-content{ 
width:1024px; 
margin-left: auto; 
margin-right: auto; 
} 
#nav_user_name,#nav_user_avatar,#nav_btn_notice,#nav_btn_discuss,#nav_btn_read,#nav_btn_index,#nav_search_text,#nav_search_text{ 
margin-top:0.5em; 
} 
.brand{ 
font-size:2.5em; 
font-weight:lighter; 
color:#5e5e5e; 
font-family: "Microsoft JhengHei"! important; 
} 
.avatar img{ 
padding:0.2em; 
} 
#notice_num{ 
visibility:visible; 
backgroung-color:red; 
color:white; 
width: 1.6em; 
height: 1.6em; 
background: red; 
-moz-border-radius: 1em; 
-webkit-border-radius: 1em; 
border-radius: 1em; 
position:fixed; 
} 
#nav_user_name{ 
float:right; 
} 
#nav_user_avatar{ 
float:right; 
} 
.content{ 
width:1024px; 
margin-left: auto; 
margin-right: auto; 
} 
.left{ 
float:left; 
width:100%; 
} 
.right{ 
background-color:white; 
float:left; 
width:100%; 
} 
.foot{ 
float:left; 
} 
.foot span{ 
font-size:0.8em; 
font-weight:lighter; 
} 
.dashed-line{ 
border-bottom:1px dashed; 
border-bottom-color:#C9C9C9; 
} 
/*##############################################*/ 
/* dynamic list */ 
.dynamic_node{ 
width:100%; 
border-top:1px solid #eee; 
padding-bottom:1em; 
padding-top:1em; 
float:left; 
} 
.dn_left{ 
width:50px; 
float:left; 
} 
.dn_left img{ 
width:50px; 
height:50px; 
} 
.dn_dianzan,.dn_zannum{ 
width:100%; 
float:left; 
margin-left:auto; 
margin-right:auto; 
text-align:center; 
} 
.dn_right{ 
padding-left:1em; 
width:666px; 
float:left; 
} 
.dn_title label{ 
font-weight:lighter; 
color:#6b6b6b; 
} 
.dn_title a span{ 
color:#259; 
font-weight:bold; 
} 
.dn_username_name{ 
font-weight:bold; 
font-size:0.8em; 
color:#259; 
} 
.dn_username_signature{ 
font-size:0.8em; 
} 
.dn_action{ 
float:right; 
} 
.dn_action span{ 
float:right; 
margin-left:1em; 
margin-top:1em; 
font-size:0.8em; 
} 
.dn_content_digest,.dn_content_text{ 
float:left; 
font-size:0.8em; 
color:#363636; 
width:100%; 
} 
.dn_content_text{ 
display:none; 
} 
.dn_content_close1,.dn_content_close2{ 
float:right; 
display:none; 
font-size:1em; 
} 
.dn_action{ 
display:none; 
float:right; 
} 
.dn_comm{ 
float:left; 
width:100%; 
display:none; 
} 
.dn_comm_items{ 
float:left; 
width:100%; 
} 
.dn_comm_item{ 
float:left; 
margin-top:0.8em; 
border-top:1px solid #eee; 
padding-top:0.8em; 
} 
.dn_comm_item_left{ 
width:50px; 
float:left; 
} 
.dn_comm_item_mid{ 
width:560px; 
float:left; 
} 
.dn_right_top{ 
width:100%; 
float:left; 
} 
.dn_comm_item_right{ 
width:30px; 
float:right; 
text-align:center; 
} 
.dn_comm_item_left img{ 
width:30px; 
height:30px; 
} 
.dn_comm_item_middle_username,.dn_comm_item_mid_content,.dn_comm_item_mid_time{ 
float:left; 
font-size:0.8em; 
} 
.dn_comm_item_mid_action{ 
float:right; 
margin-left:1em; 
font-size:0.8em; 
display:none; 
} 
.dn_comm_item_mid_action span{ 
margin-left:1em; 
} 
.dn_comm_dianzan{ 
font-size:1em; 
width:100%; 
margin-left:auto; 
margin-right:auto; 
} 
.dn_comm_zannum{ 
font-size:1em; 
color:#797979; 
width:100%; 
margin-left:auto; 
margin-right:auto; 
} 
.dn_comm_foot_left{ 
float:left; 
padding-top:0.4em; 
color:#797979; 
width:50%; 
font-size:0.7em; 
} 
.dn_comm_replay{ 
float:left; 
width:100%; 
margin-top:1em; 
padding-top:1em; 
border-top:1px solid #eee; 
} 
.dn_comm_replay_field{ 
float:left; 
width:100%; 
margin-bottom:1em; 
} 
.dn_comm_replay_buttoms a,button{ 
float:right; 
} 
.dn_comm_replay_buttoms_cancel{ 
padding-top:0.5em; 
margin-right:1em; 
} 
.dn_comm_dianzan{ 
width:100%; 
float:left; 
} 
.dn_comm_showall{ 
float:left; 
width:100%; 
margin-top:1em; 
padding-top:1em; 
border-top:1px solid #eee; 
} 
.dn_comm_showall #dn_comm_showall_button{ 
float:left; 
width:80%; 
margin-left:10%; 
margin-right:10%; 
margin-top:1em; 
border-top:1px solid #eee; 
} 
/*##############################################*/ 
/* */ 
.global{ 
width:716px; 
} 
.list_layout,.load_flag{ 
width:100%; 
float:left; 
display:block; 
} 
.load_flag{ 
padding-top:1em; 
border-top:1px solid #eee; 
margin-bottom:3em; 
} 
.load_flag button{ 
float:left; 
width:80%; 
margin-left:10%; 
margin-right:10%; 
} 
.load_flag #load_flag_info{ 
float:left; 
text-align:center; 
width:80%; 
margin-left:10%; 
margin-right:10%; 
display:none; 
} 
/*##############################################*/ 
/* */ 
</style> 
js文件内容如下(test.js):
[javascript] view plain copy
$(document).ready(function(){ 
url_user = "http://user.com/i="; 
url_img = "http://127.0.0.1/pages/"; 
url_dianzan = "http://dianzan.com"; 
url_dn_detail = "http://dt.com/i="; 
layout_list = $(".list_layout"); 
t_dn = $("#t_dn"); 
t_dn_comm = $("#t_dn_comm"); 
maxnum = 2; // 最大加载次数 
num = 1; 
load_flag = $(".load_flag"); 
function render_dn_list(arr_dn){ 
for(var i=0; i<arr_dn.length;i++){ 
var node_dn = t_dn.clone(); 
node_dn.find(".dn_id").attr("content",arr_dn[i]["ID"]); //动态ID 
node_dn.find(".user_id").attr("content",arr_dn[i]["userid"]); //用户ID 
node_dn.find(".dn_left .dn_user_avatar a").attr("href",url_user+arr_dn[i]["userid"]); // 用户名链接 
node_dn.find(".dn_left .dn_user_avatar a img").attr("src",url_img+arr_dn[i]["avatar"]); // 用户头像 
node_dn.find(".dn_zannum span").text(arr_dn[i]["zan"]); // 点赞数 
//node_dn.find(".dn_dianzan a").attr("href",arr_dn[i]["avatar"]); // 点赞链接 
node_dn.find(".dn_title a").attr("href",url_dn_detail+arr_dn[i]["fid"]+"#"+arr_dn[i]["ID"]); //跳转动态所在页锚点 
node_dn.find(".dn_title a span").text(arr_dn[i]["from"]); // 所属标题 
node_dn.find(".dn_username a").attr("src",url_user+arr_dn[i]["userid"]); //用户名链接 
node_dn.find(".dn_username_name").text(arr_dn[i]["username"]); //用户名 
node_dn.find(".dn_username_signature").text(arr_dn[i]["signature"]); //用户签名 
var digest = ""; 
var content = arr_dn[i]["content"]; 
if(content.length > 150){ 
digest=content.substring(0,150)+"... "; 
} 
else{ 
digest=content; 
} 
node_dn.find(".dn_content_digest").text(digest); //摘要 
node_dn.find(".dn_content_digest").append("<a href='#'> 显示全部</a>"); 
node_dn.find(".dn_content_text").text(content); // 正文 
node_dn.find(".dn_action_time").text(arr_dn[i]["posttime"]); // 发布时间 
// 添加点击摘要事件 
node_dn.find(".dn_content_digest").click( 
function(){ 
var dn_right = $(this).parent().parent().parent(); 
dn_right.find(".dn_content_text").toggle(); 
dn_right.find(".dn_content_digest").toggle(); 
dn_right.parent().find(".dn_content_close1").toggle(); 
dn_right.parent().find(".dn_content_close2").toggle(); 
dn_right.parent().find(".dn_action").toggle(); 
var comm= dn_right.find(".dn_comm"); 
if(comm.css("display") == "block"){ 
comm.css("display","none"); 
} 
return false; // !! 
} 
); 
// 添加点击折叠事件 
node_dn.find(".dn_content_close2,.dn_content_close1").click( 
function(){ 
var dn_right = $(this).parent().parent(); 
dn_right.find(".dn_content_text").toggle(); 
dn_right.find(".dn_content_digest").toggle(); 
dn_right.parent().find(".dn_content_close1").toggle(); 
dn_right.parent().find(".dn_content_close2").toggle(); 
dn_right.parent().find(".dn_action").toggle(); 
var comm= dn_right.find(".dn_comm"); 
if(comm.css("display") == "block"){ 
comm.css("display","none"); 
} 
return false; // !! 
} 
); 
// 为评论、分享、举报按钮添加hover下划线效果 
node_dn.find(".dn_action_comm,.dn_action_share,.dn_action_report").hover( 
function(){ 
$(this).css("text-decoration","underline"); 
return false; // !! 
} 
, 
function(){ 
$(this).css("text-decoration","none"); 
return false; // !! 
} 
); 
// 为列表项添加点赞事件 
node_dn.find(".dn_dianzan").click( 
function(){ 
//alert('zan'); 
var dn_left = $(this).parent(); 
var zan_num = dn_left.find(".dn_zannum span"); 
var currzan = zan_num.text(); 
zan_num.text(parseInt(currzan)+1); 
zan_num.animate({fontSize:"1.2em"},"fast"); 
$(this).animate({fontSize:"1.2em"},"fast"); 
zan_num.animate({fontSize:"1em"},"fast"); 
$(this).animate({fontSize:"1em"},"fast"); 
return false; // !! 
} 
); 
// 加载评论,并处理评论项事件 
function load_comm(dn_id,dn_comm_items,flag){ 
var load_url = "mockdata/commdata_"; 
if(flag == 1){ 
load_url = "mockdata/commdata_"; 
} 
else{ 
load_url = "mockdata/commdata_"; 
} 
$.ajax({ 
url:"mockdata/commdata_"+dn_id, 
type: "get",//使用get方法访问后台 
dataType: "json",//返回json格式的数据 
async:false, 
//data: "pageIndex=" + pageIndex,//要发送的数据 
complete :function(){$("#load").hide();},//AJAX请求完成时隐藏loading提示 
success: function(msg){//msg为返回的数据,在这里做数据绑定 
var encoded = $.toJSON(msg); 
ret_code =$.evalJSON(encoded).code; 
arr_dn =$.evalJSON(encoded).data; 
if(ret_code == "200"){ 
for(var i=0;i<arr_dn.length;i++){ 
var n_comm = t_dn_comm.clone(); 
n_comm.find(".dn_comm_id").attr("content",arr_dn[i]["ID"]); 
n_comm.find(".dn_comm_item_left a").attr("href",url_user+arr_dn[i]["userid"]); 
n_comm.find(".dn_comm_item_left img").attr("content",url_img+arr_dn[i]["avatar"]); 
n_comm.find(".dn_comm_item_middle_username a").attr("href",url_user+arr_dn[i]["userid"]); 
n_comm.find(".dn_comm_item_middle_username a span").text(arr_dn[i]["username"]); 
n_comm.find(".dn_comm_item_mid_content span").text(arr_dn[i]["content"]); 
n_comm.find(".dn_comm_foot_left span").text(arr_dn[i]["posttime"]); 
n_comm.find(".dn_comm_zannum span").text(arr_dn[i]["zan"]); 
// 为评论项添加hover效果 
n_comm.hover(function(){ 
$(this).find(".dn_comm_item_mid_action").toggle(); 
}); 
// 为评论项添加点赞动画效果 
var zan = n_comm.find(".dn_comm_dianzan"); 
zan.click( 
function(){ 
var zan_num = $(this).parent().find(".dn_comm_zannum"); 
var currzan = zan_num.text(); 
zan_num.text(parseInt(currzan)+1); 
zan_num.animate({fontSize:"1.2em"},"fast"); 
$(this).animate({fontSize:"1.2em"},"fast"); 
zan_num.animate({fontSize:"1em"},"fast"); 
$(this).animate({fontSize:"1em"},"fast"); 
return false; 
} 
); 
dn_comm_items.append(n_comm); 
} 
} 
else{ 
alert(ret_code); 
} 
} 
}); 
}; 
// 加载某一项的热门评论 
node_dn.find(".dn_action_comm").click( 
function(){ 
var dn = $(this).parent().parent().parent().parent(); 
dn.find(".dn_comm").toggle(); 
var dn_comm_items = dn.find(".dn_comm_items"); 
dn_comm_items.empty(); 
var dn_id = dn.find(".dn_id").attr("content"); 
load_comm(dn_id,dn_comm_items,0); 
return false; // !! 
} 
); 
// 加载某一项的全部评论 
node_dn.find(".dn_comm_showall_button").click( 
function(){ 
var dn = $(this).parent().parent().parent().parent(); 
var dn_comm_items = dn.find(".dn_comm_items"); 
dn_comm_items.empty(); 
var dn_id = dn.find(".dn_id").attr("content"); 
load_comm(dn_id,dn_comm_items,1); 
return false; // !! 
} 
); 
// 
layout_list.append(node_dn); 
} 
} 
function fill_list(){ 
$.ajax({ 
url:"mockdata/listdata", 
type: "get",//使用get方法访问后台 
dataType: "json",//返回json格式的数据 
async:false, 
//data: "pageIndex=" + pageIndex,//要发送的数据 
complete :function(){$("#load").hide();},//AJAX请求完成时隐藏loading提示 
success: function(msg){//msg为返回的数据,在这里做数据绑定 
var encoded = $.toJSON(msg); 
ret_code =$.evalJSON(encoded).code; 
arr_dn =$.evalJSON(encoded).data; 
if(ret_code == "200"){ 
render_dn_list(arr_dn); 
} 
else{ 
alert(ret_code); 
} 
} 
}); 
} 
// 为加载数据按钮注册事件 
$(".load_flag").click(function(){ 
if(num <= maxnum){ 
fill_list(); 
num++; 
} 
else{ 
load_flag.find("#load_flag_info").css("display","block"); 
load_flag.find("#load_flag_button").css("display","none"); 
} 
}); 
fill_list(); 
}); 

伪造的列表数据格式:

{ 
"code":"200", 
"data":[ 
{ 
"ID":"1", 
"fid":"1212", 
"userid":"1001", 
"avatar":"images/user.png", 
"type":"阅读注解", 
"from":"金刚经/第一品 法会因由分", 
"username":"用户名", 
"signature":"用户个性签名", 
"digest":"内容摘要内容摘。要内容摘要,要内容要内容", 
"content":"时长老须菩提。在大众中。即从座起。偏袒右肩。右膝着地。合掌恭敬。而白佛言。希有世尊。如来善护念诸菩萨。善付嘱诸菩萨。世尊。善男子。善女人。发阿耨多罗三藐三菩提心。应云何住,云何降伏其心。佛言。善哉善哉。须菩提。如汝所说。如来善护念诸菩萨。善付嘱诸菩萨。汝今谛听。当为汝说。善男子。善女人。发阿耨多罗三藐三菩提心。应如是住,如是降伏其心。唯然。世尊。愿乐欲闻。", 
"posttime":"2015-09-08 12:00:09", 
"zan":"100" 
}, 
{ 
"ID":"3", 
"fid":"1212", 
"userid":"1001", 
"avatar":"images/user.png", 
"type":"阅读注解", 
"from":"金刚经/第一品 法会因由分", 
"username":"用户名", 
"signature":"用户个性签名", 
"digest":"内容摘要内容摘。要内容摘要,要内容要内容", 
"content":"不于一佛二佛三四五佛而种善根。已于无量千万佛所种诸善根。闻是章句。乃至一念生净信者。须菩提。如来悉知悉见。是诸众生。得如是无量福德。何以故。是诸众生无复我相。人相。众生相。寿者相。无法相。亦无非法相。何以故。是诸众生。若心取相。则为著我人众生寿者。若取法相。即著我人众生寿者。何以故。若取非法相,即著我人众生寿者。是故不应取法。不应取非法。", 
"posttime":"2015-09-08 12:00:09", 
"zan":"100" 
}, 

伪造的评论数据格式:

{ 
"code":"200", 
"data":[ 
{ 
"ID":"100001", 
"fid":"1212", 
"userid":"1001", 
"avatar":"images/user.png", 
"username":"用户名", 
"content":"时长老须菩提。善付嘱诸菩萨。汝今谛听。当为汝说。善男应如是住,如是降伏其心。唯然。世尊。愿乐欲闻。", 
"posttime":"2015-09-08 12:00:09", 
"zan":"100" 
}, 
{ 
"ID":"100001", 
"fid":"1212", 
"userid":"1001", 
"avatar":"images/user.png", 
"username":"用户名", 
"content":"时长老须菩提。善付嘱诸菩萨。汝今谛听。当为汝说。善男应如是住,如是降伏其心。唯然。世尊。愿乐欲闻。", 
"posttime":"2015-09-08 12:00:09", 
"zan":"100" 
}, 

以上所述是小编给大家介绍的基于jQuery和Bootstrap框架实现仿知乎前端动态列表效果,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对毛票票网站的支持!

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