vuejs怎么实现聊天界面-Vue.js-PHP中文网

vuejs实现聊天界面的方法：1、通过执行“npm install”安装dependencies；2、通过“scrollLoader.vue”实现滚动加载数据；3、修改main.js；4、设置App.vue中的参数即可。

vuejs怎么实现聊天界面

本文操作环境：Windows7系统、vue2.9.6版，DELL G3电脑。

vuejs怎么实现聊天界面？

Vue.js仿微信聊天窗口展示组件功能

源码：https://github.com/doterlin/vue-wxChat

演示地址：https://doterlin.github.io/vue-wxChat/

运行

# install dependencies
npm install
# serve with hot reload at localhost:8080
npm run dev
# build for production with minification
npm run build

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介绍

支持文本和图片的展示（后续将支持对语音类的展示）。
支持滚动加载数据，其中滚动加载依赖我另外一个组件scrollLoader.vue（《Vue.js上下滚动加载组件》）。
支持QQ表情，为了能使用表情请全局注册指令v-emotion,我在main.js做了实现；代码如下：

function toEmotion(text, isNoGif){
 var list = [&#39;微笑&#39;, &#39;撇嘴&#39;, &#39;色&#39;, &#39;发呆&#39;, &#39;得意&#39;, &#39;流泪&#39;, &#39;害羞&#39;, &#39;闭嘴&#39;, &#39;睡&#39;, &#39;大哭&#39;, &#39;尴尬&#39;, &#39;发怒&#39;, &#39;调皮&#39;, &#39;呲牙&#39;, &#39;惊讶&#39;, &#39;难过&#39;, &#39;酷&#39;, &#39;冷汗&#39;, &#39;抓狂&#39;, &#39;吐&#39;, &#39;偷笑&#39;, &#39;愉快&#39;, &#39;白眼&#39;, &#39;傲慢&#39;, &#39;饥饿&#39;, &#39;困&#39;, &#39;惊恐&#39;, &#39;流汗&#39;, &#39;憨笑&#39;, &#39;大兵&#39;, &#39;奋斗&#39;, &#39;咒骂&#39;, &#39;疑问&#39;, &#39;嘘&#39;, &#39;晕&#39;, &#39;折磨&#39;, &#39;衰&#39;, &#39;骷髅&#39;, &#39;敲打&#39;, &#39;再见&#39;, &#39;擦汗&#39;, &#39;抠鼻&#39;, &#39;鼓掌&#39;, &#39;糗大了&#39;, &#39;坏笑&#39;, &#39;左哼哼&#39;, &#39;右哼哼&#39;, &#39;哈欠&#39;, &#39;鄙视&#39;, &#39;委屈&#39;, &#39;快哭了&#39;, &#39;阴险&#39;, &#39;亲亲&#39;, &#39;吓&#39;, &#39;可怜&#39;, &#39;菜刀&#39;, &#39;西瓜&#39;, &#39;啤酒&#39;, &#39;篮球&#39;, &#39;乒乓&#39;, &#39;咖啡&#39;, &#39;饭&#39;, &#39;猪头&#39;, &#39;玫瑰&#39;, &#39;凋谢&#39;, &#39;示爱&#39;, &#39;爱心&#39;, &#39;心碎&#39;, &#39;蛋糕&#39;, &#39;闪电&#39;, &#39;炸弹&#39;, &#39;刀&#39;, &#39;足球&#39;, &#39;瓢虫&#39;, &#39;便便&#39;, &#39;月亮&#39;, &#39;太阳&#39;, &#39;礼物&#39;, &#39;拥抱&#39;, &#39;强&#39;, &#39;弱&#39;, &#39;握手&#39;, &#39;胜利&#39;, &#39;抱拳&#39;, &#39;勾引&#39;, &#39;拳头&#39;, &#39;差劲&#39;, &#39;爱你&#39;, &#39;NO&#39;, &#39;OK&#39;, &#39;爱情&#39;, &#39;飞吻&#39;, &#39;跳跳&#39;, &#39;发抖&#39;, &#39;怄火&#39;, &#39;转圈&#39;, &#39;磕头&#39;, &#39;回头&#39;, &#39;跳绳&#39;, &#39;挥手&#39;, &#39;激动&#39;, &#39;街舞&#39;, &#39;献吻&#39;, &#39;左太极&#39;, &#39;右太极&#39;, &#39;嘿哈&#39;, &#39;捂脸&#39;, &#39;奸笑&#39;, &#39;机智&#39;, &#39;皱眉&#39;, &#39;耶&#39;, &#39;红包&#39;, &#39;鸡&#39;];
 if (!text) {
  return text;
 }
 text = text.replace(/\[[\u4E00-\u9FA5]{1,3}\]/gi, function(word){
  var newWord = word.replace(/\[|\]/gi,&#39;&#39;);
  var index = list.indexOf(newWord);
  var backgroundPositionX = -index * 24
  var imgHTML = &#39;&#39;;
  if(index<0){
   return word;
  }
  if (isNoGif) {
   if(index>104){
    return word;
   }
   imgHTML = `<i class="static-emotion" style="background:url(https://res.wx.qq.com/mpres/htmledition/images/icon/emotion/default218877.gif) ${backgroundPositionX}px 0;"></i>`
  } else {
   var path = index>104 ? &#39;/img&#39; : &#39;https://res.wx.qq.com/mpres/htmledition/images/icon&#39;;
   imgHTML = `![](${path}/emotion/${index}.gif)`
  }
  return imgHTML;
 });
 return text;
}
Vue.directive(&#39;emotion&#39;, {
 bind: function (el, binding) {
  el.innerHTML = toEmotion(binding.value)
 }
});

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如何使用?

参数已经在组件中做了说明，并在App.vue中做了演示：

参数和说明：

微信聊天可视化组件

依赖scrollLoader组件, 依赖指令v-emotion（实现请查看main.js）

参数：

width 组件宽度，默认450

wrapBg 外层父元素背景颜色，默认#efefef

maxHeight 展示窗口最高高度, 默认900

contactAvatarUrl 好友头像url

ownerAvatarUrl 微信主人头像url

ownerNickname 微信主人昵称

getUpperData （必需）当滚动到上方时加载数据的方法，返回值要为Promise对象，resolve的结构同data

getUnderData （必需）当滚动到下方时加载数据的方法，返回值同上

data （必需）传入初始化数据，结构如下：

[{
 direction: 2, //为2表示微信主人发出的消息，1表示联系人
 id: 1, //根据这个来排序消息
 type: 1, //1为文本，2为图片
 content: &#39;你好!![呲牙]&#39;, //当type为1时这里是文本消息，当type2为2时这里要存放图片地址；后续会支持语音的显示
 ctime: new Date().toLocaleString() //显示当前消息的发送时间
},
{
 direction: 1,
 id: 2,
 type: 1,
 content: &#39;你也好。[害羞]&#39;,
 ctime: new Date().toLocaleString()
}]

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完整的使用实例

效果：https://doterlin.github.io/vue-wxChat/

代码：

//主文件，对wxChat的用法做示例
<template>
<wxChat 
 :data="wxChatData"
 :showShade="false"
 contactNickname="简叔"
 :getUpperData="getUpperData"
 :getUnderData="getUnderData"
 :ownerAvatarUrl="ownerAvatarUrl"
 :contactAvatarUrl="contactAvatarUrl"
 :width="420">
</wxChat>
</template>
<script>
import wxChat from &#39;./components/wxChat.vue&#39;
export default {
 name: &#39;app&#39;,
 data () {
 return {
  upperTimes: 0,
  underTimes: 0,
  upperId: 0,
  underId: 6,
  ownerAvatarUrl: &#39;./src/assets/avatar1.png&#39;,
  contactAvatarUrl: &#39;./src/assets/avatar2.png&#39;,
  wxChatData: [{
  direction: 2,
  id: 1,
  type: 1,
  content: &#39;你好!![呲牙]&#39;,
  ctime: new Date().toLocaleString()
  },
  {
  direction: 1,
  id: 2,
  type: 1,
  content: &#39;你也好。[害羞]&#39;,
  ctime: new Date().toLocaleString()
  },
  {
  direction: 2,
  id: 3,
  type: 1,
  content: &#39;这是我的简历头像：&#39;,
  ctime: new Date().toLocaleString()
  },
  {
  direction: 2,
  id: 4,
  type: 2,
  content: &#39;./src/assets/wyz.jpg&#39;,
  ctime: new Date().toLocaleString()
  },
  {
  direction: 1,
  id: 5,
  type: 1,
  content: &#39;你开心就好。[微笑]&#39;,
  ctime: new Date().toLocaleString()
  }]
 }
 },
 components:{wxChat},
 methods:{
 //向上滚动加载数据
 getUpperData(){
  var me = this;
  // 这里为模拟异步加载数据
  // 实际上你可能要这么写:
  // return axios.get(&#39;xxx&#39;).then(function(result){
  //  return result; //result的格式需要类似下面resolve里面的数组
  // })
  return new Promise(function(resolve){
  setTimeout(function(){
   //模拟加载完毕
   if(me.upperTimes>3){
   return resolve([]);
   }
   //加载数据
   resolve([{
    direction: 2,
    id: me.upperId-1,
    type: 1,
    content: &#39;向上滚动加载第 &#39; + me.upperTimes +&#39; 条！&#39;,
    ctime: new Date().toLocaleString()
   },
   {
    direction: 1,
    id: me.upperId-2,
    type: 1,
    content: &#39;向上滚动加载第 &#39; + me.upperTimes +&#39; 条！&#39;,
    ctime: new Date().toLocaleString()
   }]
   )
  }, 1000);
  me.upperId= me.upperId+2;
  me.upperTimes++;
  })
 },
 getUnderData(){
  var me = this;
  //意义同getUpperData()
  return new Promise(function(resolve){
  setTimeout(function(){
   //模拟加载完毕
   if(me.underTimes>3){
   return resolve([]);
   }
   //加载数据
   resolve(
   [{
    direction: 1,
    id: me.underId+1,
    type: 1,
    content: &#39;向下滚动加载第 &#39; + me.underTimes +&#39; 条！&#39;,
    ctime: new Date().toLocaleString()
   },
   {
    direction: 2,
    id: me.underId+2,
    type: 1,
    content: &#39;向下滚动加载第 &#39; + me.underTimes +&#39; 条！&#39;,
    ctime: new Date().toLocaleString()
   }]
   )
  }, 1000);
  me.underId = me.underId+2;
  me.underTimes++;
  })
 }
 }
}
</script>
<style>
*{
 margin: 0;
 padding: 0;
}
#app {
 font-family: &#39;Avenir&#39;, Helvetica, Arial, sans-serif;
 -webkit-font-smoothing: antialiased;
 -moz-osx-font-smoothing: grayscale;
 text-align: center;
 color: #2c3e50;
 margin-top: 60px;
}
h1, h2 {
 font-weight: normal;
}
ul {
 list-style-type: none;
 padding: 0;
}
li {
 display: inline-block;
}
</style>

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欢迎 start:

https://github.com/doterlin/vue-wxChat