利用Vue+ElementUi实现评论功能
作者：zLanaDelRey
这篇文章主要介绍了如何利用Vue+ElementUi实现评论功能,结合实例代码给大家介绍的非常详细,对大家的学习或工作具有一定的参考借鉴价值,需要的朋友可以参考下
前言
这两天在用vue重构之前写的一个社区博客项目，之前评论的样式和效果都差强人意，所以仿照掘金重写了一个评论功能（但不是完全照搬模仿）
在写完这个功能后，由心觉得Vue真的非常好用。
话不多说，先上效果图
代码
html代码：
<template>
<div>
<div v-clickoutside="hideReplyBtn" @click="inputFocus" class="my-reply">
<el-avatar class="header-img" :size="40" :src="myHeader"></el-avatar>
<div class="reply-info" >
<div
tabindex="0"
contenteditable="true"
id="replyInput"
spellcheck="false"
placeholder="输入评论..."
class="reply-input"
@focus="showReplyBtn"
@input="onDivInput($event)"
>
</div>
</div>
<div class="reply-btn-box" v-show="btnShow">
<el-button class="reply-btn" size="medium" @click="sendComment" type="primary">发表评论</el-button>
</div>
</div>
<div v-for="(item,i) in comments" :key="i" class="author-title reply-father">
<el-avatar class="header-img" :size="40" :src="item.headImg"></el-avatar>
<div class="author-info">
<span class="author-name">{{item.name}}</span>
<span class="author-time">{{item.time}}</span>
</div>
<div class="icon-btn">
<span @click="showReplyInput(i,item.name,item.id)"><i class="iconfont el-icon-s-comment"></i>{{item.commentNum}}</span>
<i class="iconfont el-icon-caret-top"></i>{{item.like}}
</div>
<div class="talk-box">
<p>
<span class="reply">{{item.comment}}</span>
</p>
</div>
<div class="reply-box">
<div v-for="(reply,j) in item.reply" :key="j" class="author-title">
<el-avatar class="header-img" :size="40" :src="reply.fromHeadImg"></el-avatar>
<div class="author-info">
<span class="author-name">{{reply.from}}</span>
<span class="author-time">{{reply.time}}</span>
</div>
<div class="icon-btn">
<span @click="showReplyInput(i,reply.from,reply.id)"><i class="iconfont el-icon-s-comment"></i>{{reply.commentNum}}</span>
<i class="iconfont el-icon-caret-top"></i>{{reply.like}}
</div>
<div class="talk-box">
<p>
<span>回复 {{reply.to}}:</span>
<span class="reply">{{reply.comment}}</span>
</p>
</div>
<div class="reply-box">
</div>
</div>
</div>
<div v-show="_inputShow(i)" class="my-reply my-comment-reply">
<el-avatar class="header-img" :size="40" :src="myHeader"></el-avatar>
<div class="reply-info" >
<div tabindex="0" contenteditable="true" spellcheck="false" placeholder="输入评论..." @input="onDivInput($event)" class="reply-input reply-comment-input"></div>
</div>
<div class=" reply-btn-box">
<el-button class="reply-btn" size="medium" @click="sendCommentReply(i,j)" type="primary">发表评论</el-button>
</div>
</div>
</div>
</div>
</template>
JS代码如下
我把模拟的数据写在了data里面，显得js有点长。如果要更改数据的格式的话，记得也要改Html不然会出错。
<script>
const clickoutside = {
// 初始化指令
bind(el, binding, vnode) {
function documentHandler(e) {
// 这里判断点击的元素是否是本身，是本身，则返回
if (el.contains(e.target)) {
return false;
}
// 判断指令中是否绑定了函数
if (binding.expression) {
// 如果绑定了函数 则调用那个函数，此处binding.value就是handleClose方法
binding.value(e);
}
}
// 给当前元素绑定个私有变量，方便在unbind中可以解除事件监听
el.vueClickOutside = documentHandler;
document.addEventListener('click', documentHandler);
},
update() {},
unbind(el, binding) {
// 解除事件监听
document.removeEventListener('click', el.vueClickOutside);
delete el.vueClickOutside;
},
};
export default {
name:'ArticleComment',
data(){
return{
btnShow: false,
index:'0',
replyComment:'',
myName:'Lana Del Rey',
myHeader:'https://ae01.alicdn.com/kf/Hd60a3f7c06fd47ae85624badd32ce54dv.jpg',
myId:19870621,
to:'',
toId:-1,
comments:[
{
name:'Lana Del Rey',
id:19870621,
headImg:'https://ae01.alicdn.com/kf/Hd60a3f7c06fd47ae85624badd32ce54dv.jpg',
comment:'我发布一张新专辑Norman Fucking Rockwell,大家快来听啊',
time:'2019年9月16日 18:43',
commentNum:2,
like:15,
inputShow:false,
reply:[
{
from:'Taylor Swift',
fromId:19891221,
fromHeadImg:'https://ae01.alicdn.com/kf/H94c78935ffa64e7e977544d19ecebf06L.jpg',
to:'Lana Del Rey',
toId:19870621,
comment:'我很喜欢你的新专辑！！',
time:'2019年9月16日 18:43',
commentNum:1,
like:15,
inputShow:false
},
{
from:'Ariana Grande',
fromId:1123,
fromHeadImg:'https://ae01.alicdn.com/kf/Hf6c0b4a7428b4edf866a9fbab75568e6U.jpg',
to:'Lana Del Rey',
toId:19870621,
comment:'别忘记宣传我们的合作单曲啊',
time:'2019年9月16日 18:43',
commentNum:0,
like:5,
inputShow:false
}
]
},
{
name:'Taylor Swift',
id:19891221,
headImg:'https://ae01.alicdn.com/kf/H94c78935ffa64e7e977544d19ecebf06L.jpg',
comment:'我发行了我的新专辑Lover',
time:'2019年9月16日 18:43',
commentNum:1,
like:5,
inputShow:false,
reply:[
{
from:'Lana Del Rey',
fromId:19870621,
fromHeadImg:'https://ae01.alicdn.com/kf/Hd60a3f7c06fd47ae85624badd32ce54dv.jpg',
to:'Taylor Swift',
toId:19891221,
comment:'新专辑和speak now 一样棒！',
time:'2019年9月16日 18:43',
commentNum:25,
like:5,
inputShow:false
}
]
},
{
name:'Norman Fucking Rockwell',
id:20190830,
headImg:'https://ae01.alicdn.com/kf/Hdd856ae4c81545d2b51fa0c209f7aa28Z.jpg',
comment:'Plz buy Norman Fucking Rockwell on everywhere',
time:'2019年9月16日 18:43',
commentNum:0,
like:5,
inputShow:false,
reply:[]
},
]
}
},
directives: {clickoutside},
methods: {
inputFocus(){
var replyInput = document.getElementById('replyInput');
replyInput.style.padding= "8px 8px"
replyInput.style.border ="2px solid blue"
replyInput.focus()
},
showReplyBtn(){
this.btnShow = true
},
hideReplyBtn(){
this.btnShow = false
replyInput.style.padding= "10px"
replyInput.style.border ="none"
},
showReplyInput(i,name,id){
this.comments[this.index].inputShow = false
this.index =i
this.comments[i].inputShow = true
this.to = name
this.toId = id
},
_inputShow(i){
return this.comments[i].inputShow
},
sendComment(){
if(!this.replyComment){
this.$message({
showClose: true,
type:'warning',
message:'评论不能为空'
})
}else{
let a ={}
let input = document.getElementById('replyInput')
let timeNow = new Date().getTime();
let time= this.dateStr(timeNow);
a.name= this.myName
a.comment =this.replyComment
a.headImg = this.myHeader
a.time = time
a.commentNum = 0
a.like = 0
this.comments.push(a)
this.replyComment = ''
input.innerHTML = '';
}
},
sendCommentReply(i,j){
if(!this.replyComment){
this.$message({
showClose: true,
type:'warning',
message:'评论不能为空'
})
}else{
let a ={}
let timeNow = new Date().getTime();
let time= this.dateStr(timeNow);
a.from= this.myName
a.to = this.to
a.fromHeadImg = this.myHeader
a.comment =this.replyComment
a.time = time
a.commentNum = 0
a.like = 0
this.comments[i].reply.push(a)
this.replyComment = ''
document.getElementsByClassName("reply-comment-input")[i].innerHTML = ""
}
},
onDivInput: function(e) {
this.replyComment = e.target.innerHTML;
},
dateStr(date){
//获取js 时间戳
var time=new Date().getTime();
//去掉 js 时间戳后三位，与php 时间戳保持一致
time=parseInt((time-date)/1000);
//存储转换值
var s;
if(time<60*10){//十分钟内
return '刚刚';
}else if((time<60*60)&&(time>=60*10)){
//超过十分钟少于1小时
s = Math.floor(time/60);
return s+"分钟前";
}else if((time<60*60*24)&&(time>=60*60)){
//超过1小时少于24小时
s = Math.floor(time/60/60);
return s+"小时前";
}else if((time<60*60*24*30)&&(time>=60*60*24)){
//超过1天少于30天内
s = Math.floor(time/60/60/24);
return s+"天前";
}else{
//超过30天ddd
var date= new Date(parseInt(date));
return date.getFullYear()+"/"+(date.getMonth()+1)+"/"+date.getDate();
}
}
},
}
</script>
css 代码
<style lang="stylus" scoped>
.my-reply
padding 10px
background-color #fafbfc
.header-img
display inline-block
vertical-align top
.reply-info
display inline-block
margin-left 5px
width 90%
@media screen and (max-width:1200px) {
width 80%
}
.reply-input
min-height 20px
line-height 22px
padding 10px 10px
color #ccc
background-color #fff
border-radius 5px
&:empty:before
content attr(placeholder)
&:focus:before
content none
&:focus
padding 8px 8px
border 2px solid blue
box-shadow none
outline none
.reply-btn-box
height 25px
margin 10px 0
.reply-btn
position relative
float right
margin-right 15px
.my-comment-reply
margin-left 50px
.reply-input
width flex
.author-title:not(:last-child)
border-bottom: 1px solid rgba(178,186,194,.3)
.author-title
padding 10px
.header-img
display inline-block
vertical-align top
.author-info
display inline-block
margin-left 5px
width 60%
height 40px
line-height 20px
>span
display block
cursor pointer
overflow hidden
white-space nowrap
text-overflow ellipsis
.author-name
color #000
font-size 18px
font-weight bold
.author-time
font-size 14px
.icon-btn
width 30%
padding 0 !important
float right
@media screen and (max-width : 1200px){
width 20%
padding 7px
}
>span
cursor pointer
.iconfont
margin 0 5px
.talk-box
margin 0 50px
>p
margin 0
.reply
font-size 16px
color #000
.reply-box
margin 10px 0 0 50px
background-color #efefef
</style>
写在最后
如果代码有什么问题，或者你有什么意见，欢迎大家指出。
到此这篇关于利用Vue+ElementUi实现评论功能的文章就介绍到这了,更多相关Vue ElementUi评论内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！