微信小程序怎么实现聊天功能
发表于：2026-10-31 作者：千家信息网编辑
千家信息网最后更新 2026年10月31日，这篇文章将为大家详细讲解有关微信小程序怎么实现聊天功能，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。初始化滚动条高度var keyHeight = 0;数据格式co
千家信息网最后更新 2026年10月31日微信小程序怎么实现聊天功能
这篇文章将为大家详细讲解有关微信小程序怎么实现聊天功能，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。
初始化滚动条高度
var keyHeight = 0;
数据格式
const CHAT_DATA=[ { type:0,//0客服1用户 content:'欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎欢迎', headImg:'../../assets/common/images/headHortrait.jpeg',//头像 creatTime:'2019-01-01',//创建时间 contentType:'text' }, { type: 0,//0客服1用户 content: '1111111', headImg: '../../assets/common/images/headHortrait.jpeg',//头像 creatTime: '2019-01-01',//创建时间 contentType: 'text' }, { type: 1,//0客服1用户 content: '222222', headImg: '../../assets/common/images/headHortrait.jpeg',//头像 creatTime: '2019-01-01',//创建时间 contentType: 'text' }, { type: 0,//0客服1用户 content: '333333', headImg: '../../assets/common/images/headHortrait.jpeg',//头像 creatTime: '2019-01-01',//创建时间 contentType: 'text' }, { type: 1,//0客服1用户 content: '4444444', headImg: '../../assets/common/images/headHortrait.jpeg',//头像 creatTime: '2019-01-01',//创建时间 contentType: 'text', }, { type: 0,//0客服1用户 content: 'http://tmp/wxc79c66d8b0ed19a8.o6zAJs6QE8L8FKq645ts4e3LoKzI.pGakaVHKmbQ3160aa57e2bf33cb576fbabf691cd890b.durationTime=3706.aac', headImg: '../../assets/common/images/headHortrait.jpeg',//头像 creatTime: '2019-01-01',//创建时间 contentType: 'voice', duration: '3706', },{ type: 1,//0客服1用户 content: 'http://tmp/wxc79c66d8b0ed19a8.o6zAJs6QE8L8FKq645ts4e3LoKzI.pGakaVHKmbQ3160aa57e2bf33cb576fbabf691cd890b.durationTime=3706.aac', headImg: '../../assets/common/images/headHortrait.jpeg',//头像 creatTime: '2019-01-01',//创建时间 contentType: 'voice', duration:'3706' }, { type: 1,//0客服1用户 content: 'https://cache.yisu.com/upload/information/20201210/269/44185.jpg', headImg: '../../assets/common/images/headHortrait.jpeg',//头像 creatTime: '2019-01-01',//创建时间 contentType: 'img' }, { type: 1,//0客服1用户 content: 'https://cache.yisu.com/upload/information/20201210/269/44185.jpg', headImg: '../../assets/common/images/headHortrait.jpeg',//头像 creatTime: '2019-01-01',//创建时间 contentType: 'img' }];wxml对话框
{{item.content}} {{item.duration}}s {{item.duration}}" {{item.content}}
wxml底部输入框
按住请说话 {{toastTitle}}
css
#page{ height: 90%;overflow-y: auto;}.content{ background: white;}.inputRoom { width: 100vw; /* height: 16vw; */ border-top: 1px solid #cdcdcd; position: fixed; bottom: 0; display: flex; align-items: center; z-index: 20; background: white; flex-direction: column;}.bottomRow{ width: 100%; height: 16vw;display: flex;align-items: center;flex-direction: row}.bottomRow .van-row{ width: 100%;}.emoji{ height: 30vw;}input {width: 90%;height: 9.33vw;background-color: #EEF4FA;border-radius: 6rpx;font-size: 28rpx;color: #444;padding: 0 3%;margin-left: 2%;}.leftMsg { font-size: 26rpx; color: #333333;line-height: 6vw;padding: 2vw 2.5vw;background-color: #EEF4FA; border-radius: 10rpx; z-index: 10;}.rightMsg { font-size: 26rpx; color: white; line-height: 6vw; padding: 2vw 2.5vw; background-color: #496DFF; border-radius: 10rpx; z-index: 10;}.chatFrame{ background: white; height: 100%}.icon{ line-height: 8vw;}.head{ display: flex; align-items: center}.headImg{ border-radius: 50%; width: 60rpx;height: 60rpx;}.holdTape{ width: 90%;height: 9.33vw;background-color: #EEF4FA;border-radius: 6rpx;padding: 0 3%;margin-left: 2%;display: flex;align-items: center;justify-content: center;}.recordDailog{ -webkit-transition-duration: 300ms;transition-duration: 300ms;z-index: 1000;position: fixed;top: 50%;left: 50%;width: -webkit-fit-content;width: fit-content;-webkit-transform: translate(-50%,-50%);transform: translate(-50%,-50%);max-width: var(--toast-max-width,70%);}.show{width: var(--toast-default-width,90px);min-height: var(--toast-default-min-height,90px);padding: var(--toast-default-padding,16px);display: flex;-webkit-flex-direction: column;flex-direction: column;-webkit-align-items: center;align-items: center;-webkit-justify-content: center;justify-content: center;box-sizing: initial;color: var(--toast-text-color,#fff);font-size: var(--toast-font-size,14px);line-height: var(--toast-line-height,20px);white-space: pre-wrap;word-wrap: break-word;background-color: var(--toast-background-color,rgba(50,50,51,.88));border-radius: var(--toast-border-radius,4px);}.show image{ width: 24px; height: 24px}image{ /* max-width: 88vw;max-height: 400rpx; */width: 100%}.img{background: none;width: 90%}.contentRight{ display: flex; justify-content: flex-end; padding: 2vw 2vw 2vw 11vw;width: 86%;}.contentLeft{ display: flex; padding: 2vw 11vw 2vw 2vw;width: 86%;}js
// pages/contact/contact.jsconst { pageFunc} = require('../../utils/util.js');const app = getApp();var windowWidth = wx.getSystemInfoSync().windowWidth;var windowHeight = wx.getSystemInfoSync().windowHeight;var keyHeight = 0;const { CHAT_DATA}=require("../../data/customerService.js");import Toast from '../../components/vant/toast/toast';const recorderManager = wx.getRecorderManager();const innerAudioContext = wx.createInnerAudioContext();const db = wx.cloud.database();/** * 初始化数据 *//** * 计算msg总高度 */function calScrollHeight(that, keyHeight) { var query = wx.createSelectorQuery(); query.select('.scrollMsg').boundingClientRect(function(rect) { }).exec();}Page({ /** * 页面的初始数据 */ data: { scrollHeight: '100vh', inputVal:"", inputBottom: 0, chatData:[], show:true, showDailog:false, bottomHeight:"18vw", sendData:{}, pagination: { pageSize: 5, currentPage: 1, total: 0, }, showEmoji:false, toastTitle:"录音中...." }, /** * 生命周期函数--监听页面加载 */ onLoad: function (options) { // this.setData({ // cusHeadIcon: app.globalData.userInfo.avatarUrl, // }); const { pagination } = this.data this.getData({ param: CHAT_DATA, pagination }); wx.pageScrollTo({ scrollTop: 1000 }) }, getData(params) { const { chatData } = this.data; const { param, pagination: { pageSize = 10, currentPage = 1 }, } = params; this.setData({ pagination: { pageSize, currentPage } }); const { data, pagination } = pageFunc(param, currentPage, pageSize); data.forEach((item) => { if (item.duration) { item.duration = Math.ceil(item.duration / 1000) } }); this.setData({ 'chatData': data.concat(chatData) }); }, startRecord(){//开始录音 const {show}=this.data if (show){ this.setData({ show: false, }) }else{ this.setData({ show: true, }) } }, startTalk(e){//开始说话 this.setData({ showDailog:true, }) const options = { duration: 60000, sampleRate: 44100, numberOfChannels: 1, encodeBitRate: 192000, format: 'aac', frameSize: 50 } recorderManager.start(options) recorderManager.onStart((res) => { }) }, stopRecord(){//停止说话 const that=this this.setData({ showDailog:false, }) recorderManager.stop(); recorderManager.onStop((res) => { const { sendData, chatData } = that.data; let { tempFilePath, duration, fileSize} = res sendData.tempFilePathData=res duration = Math.ceil(duration / 1000) const data = { content: tempFilePath, duration , fileSize, contentType: 'voice', type: 1}; chatData.push(data); wx.createSelectorQuery().select('.content').boundingClientRect(function (rect) { // 使页面滚动到底部 wx.pageScrollTo({ scrollTop: rect.bottom + 5000 }) }).exec(); that.setData({ 'tempFilePath': tempFilePath, sendData, chatData, scrollHeight: (windowHeight - 0) + 'px', toView: 'msg-' + (chatData.length - 1), inputBottom: '0px' }) }) }, playRecord(e){//播放语音 const { currentTarget: { dataset: { duration } }}=e; const { tempFilePath} = this.data innerAudioContext.autoplay = true; innerAudioContext.src = tempFilePath , innerAudioContext.onPlay(() => { this.setData({ toastTitle: "播放中....", showDailog: true, }) }) innerAudioContext.onEnded((res) => { this.setData({ toastTitle: "录音中....", showDailog: false, }) }) innerAudioContext.onError((res) => { }); innerAudioContext.play() }, uploadeImg(e){ const { file: { path,size:fileSize} } = e.detail; const { chatData } = this.data; const data = { content: path, fileSize, contentType: 'img', type: 1 }; chatData.push(data); wx.createSelectorQuery().select('.content').boundingClientRect(function (rect) { // 使页面滚动到底部 wx.pageScrollTo({ scrollTop: rect.bottom + 5000 }) }).exec() this.setData({ chatData, scrollHeight: (windowHeight - 0) + 'px', toView: 'msg-' + (chatData.length - 1), inputBottom:'0px' }) }, getEmoji(){//获取表情包 wx.createSelectorQuery().select('.content').boundingClientRect(function (rect) { // 使页面滚动到底部 wx.pageScrollTo({ scrollTop: rect.bottom + 5000 }) }).exec() this.setData({ showEmoji:true, bottomHeight:"48vw" }) }, clickEmoji: function (e) {//选择表情包 const { detail: { value }, currentTarget: { dataset: { key } } } = e; this.setData({ [key]: value }) }, onPreview(e){ const { currentTarget: { dataset: { src } } } = e; const urls = [src] wx.previewImage({ current: src, urls }) }, /** * 生命周期函数--监听页面显示 */ onShow: function () { }, /** * 页面相关事件处理函数--监听用户下拉动作 */ onPullDownRefresh: function () { let { pagination: { currentPage } } = this.data this.getData({ param: CHAT_DATA, pagination: { pageSize: 5, currentPage: currentPage + 1, } }); }, /** * 页面上拉触底事件的处理函数 */ onReachBottom: function () { }, /** * 获取聚焦 */ inputValue(e){ const {detail:{value}}=e this.setData({ inputVal:value }) }, focus: function (e) { const { chatData}=this.data keyHeight = e.detail.height; wx.pageScrollTo({ scrollTop: windowHeight - keyHeight }) this.setData({ toView: 'msg-' + (chatData.length - 1), inputBottom: keyHeight + 'px', scrollHeight: (windowHeight - keyHeight) + 'px', showEmoji:false, bottomHeight: "18vw" }) //计算msg高度 // calScrollHeight(this, keyHeight); }, //失去聚焦(软键盘消失) blur: function (e) { const { chatData } = this.data this.setData({ scrollHeight: '100vh', inputBottom: 0 }) this.setData({ toView: 'msg-' + (chatData.length - 1) }) }, /** * 发送点击监听 */ sendClick: function (e) { const { chatData, scrollHeight}=this.data; wx.createSelectorQuery().select('.content').boundingClientRect(function (rect) { // 使页面滚动到底部 wx.pageScrollTo({ scrollTop: rect.bottom + 5000 }) }).exec() chatData.push({ type: 1, contentType: 'text', content: e.detail.value, headImg: '../../assets/common/images/headHortrait.jpeg', }) this.setData({ chatData, inputVal:'' }); }, /** * 退回上一页 */ toBackClick: function () { wx.navigateBack({}) }})// pages/contact/contact.jsconst { pageFunc} = require('../../utils/util.js');const app = getApp();var windowWidth = wx.getSystemInfoSync().windowWidth;var windowHeight = wx.getSystemInfoSync().windowHeight;var keyHeight = 0;const { CHAT_DATA}=require("../../data/customerService.js");import Toast from '../../components/vant/toast/toast';const recorderManager = wx.getRecorderManager();const innerAudioContext = wx.createInnerAudioContext();const db = wx.cloud.database();/** * 初始化数据 *//** * 计算msg总高度 */function calScrollHeight(that, keyHeight) { var query = wx.createSelectorQuery(); query.select('.scrollMsg').boundingClientRect(function(rect) { }).exec();}Page({ /** * 页面的初始数据 */ data: { scrollHeight: '100vh', inputVal:"", inputBottom: 0, chatData:[], show:true, showDailog:false, bottomHeight:"18vw", sendData:{}, pagination: { pageSize: 5, currentPage: 1, total: 0, }, showEmoji:false, toastTitle:"录音中...." }, /** * 生命周期函数--监听页面加载 */ onLoad: function (options) { // this.setData({ // cusHeadIcon: app.globalData.userInfo.avatarUrl, // }); const { pagination } = this.data this.getData({ param: CHAT_DATA, pagination }); wx.pageScrollTo({ scrollTop: 1000 }) }, getData(params) { const { chatData } = this.data; const { param, pagination: { pageSize = 10, currentPage = 1 }, } = params; this.setData({ pagination: { pageSize, currentPage } }); const { data, pagination } = pageFunc(param, currentPage, pageSize); data.forEach((item) => { if (item.duration) { item.duration = Math.ceil(item.duration / 1000) } }); this.setData({ 'chatData': data.concat(chatData) }); }, startRecord(){//开始录音 const {show}=this.data if (show){ this.setData({ show: false, }) }else{ this.setData({ show: true, }) } }, startTalk(e){//开始说话 this.setData({ showDailog:true, }) const options = { duration: 60000, sampleRate: 44100, numberOfChannels: 1, encodeBitRate: 192000, format: 'aac', frameSize: 50 } recorderManager.start(options) recorderManager.onStart((res) => { }) }, stopRecord(){//停止说话 const that=this this.setData({ showDailog:false, }) recorderManager.stop(); recorderManager.onStop((res) => { const { sendData, chatData } = that.data; let { tempFilePath, duration, fileSize} = res sendData.tempFilePathData=res duration = Math.ceil(duration / 1000) const data = { content: tempFilePath, duration , fileSize, contentType: 'voice', type: 1}; chatData.push(data); wx.createSelectorQuery().select('.content').boundingClientRect(function (rect) { // 使页面滚动到底部 wx.pageScrollTo({ scrollTop: rect.bottom + 5000 }) }).exec(); that.setData({ 'tempFilePath': tempFilePath, sendData, chatData, scrollHeight: (windowHeight - 0) + 'px', toView: 'msg-' + (chatData.length - 1), inputBottom: '0px' }) }) }, playRecord(e){//播放语音 const { currentTarget: { dataset: { duration } }}=e; const { tempFilePath} = this.data innerAudioContext.autoplay = true; innerAudioContext.src = tempFilePath , innerAudioContext.onPlay(() => { this.setData({ toastTitle: "播放中....", showDailog: true, }) }) innerAudioContext.onEnded((res) => { this.setData({ toastTitle: "录音中....", showDailog: false, }) }) innerAudioContext.onError((res) => { }); innerAudioContext.play() }, uploadeImg(e){ const { file: { path,size:fileSize} } = e.detail; const { chatData } = this.data; const data = { content: path, fileSize, contentType: 'img', type: 1 }; chatData.push(data); wx.createSelectorQuery().select('.content').boundingClientRect(function (rect) { // 使页面滚动到底部 wx.pageScrollTo({ scrollTop: rect.bottom + 5000 }) }).exec() this.setData({ chatData, scrollHeight: (windowHeight - 0) + 'px', toView: 'msg-' + (chatData.length - 1), inputBottom:'0px' }) }, getEmoji(){//获取表情包 wx.createSelectorQuery().select('.content').boundingClientRect(function (rect) { // 使页面滚动到底部 wx.pageScrollTo({ scrollTop: rect.bottom + 5000 }) }).exec() this.setData({ showEmoji:true, bottomHeight:"48vw" }) }, clickEmoji: function (e) {//选择表情包 const { detail: { value }, currentTarget: { dataset: { key } } } = e; this.setData({ [key]: value }) }, onPreview(e){ const { currentTarget: { dataset: { src } } } = e; const urls = [src] wx.previewImage({ current: src, urls }) }, /** * 生命周期函数--监听页面显示 */ onShow: function () { }, /** * 页面相关事件处理函数--监听用户下拉动作 */ onPullDownRefresh: function () { let { pagination: { currentPage } } = this.data this.getData({ param: CHAT_DATA, pagination: { pageSize: 5, currentPage: currentPage + 1, } }); }, /** * 页面上拉触底事件的处理函数 */ onReachBottom: function () { }, /** * 获取聚焦 */ inputValue(e){ const {detail:{value}}=e this.setData({ inputVal:value }) }, focus: function (e) { const { chatData}=this.data keyHeight = e.detail.height; wx.pageScrollTo({ scrollTop: windowHeight - keyHeight }) this.setData({ toView: 'msg-' + (chatData.length - 1), inputBottom: keyHeight + 'px', scrollHeight: (windowHeight - keyHeight) + 'px', showEmoji:false, bottomHeight: "18vw" }) //计算msg高度 // calScrollHeight(this, keyHeight); }, //失去聚焦(软键盘消失) blur: function (e) { const { chatData } = this.data this.setData({ scrollHeight: '100vh', inputBottom: 0 }) this.setData({ toView: 'msg-' + (chatData.length - 1) }) }, /** * 发送点击监听 */ sendClick: function (e) { const { chatData, scrollHeight}=this.data; wx.createSelectorQuery().select('.content').boundingClientRect(function (rect) { // 使页面滚动到底部 wx.pageScrollTo({ scrollTop: rect.bottom + 5000 }) }).exec() chatData.push({ type: 1, contentType: 'text', content: e.detail.value, headImg: '../../assets/common/images/headHortrait.jpeg', }) this.setData({ chatData, inputVal:'' }); }, /** * 退回上一页 */ toBackClick: function () { wx.navigateBack({}) }})关于"微信小程序怎么实现聊天功能"这篇文章就分享到这里了，希望以上内容可以对大家有一定的帮助，使各位可以学到更多知识，如果觉得文章不错，请把它分享出去让更多的人看到。
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