微信小程序实现即时通信聊天功能的实例代码

# 微信 2024-05-05 22:18 0 587 来源： 云博客

项目背景：小程序中实现实时聊天功能

一、服务器域名配置

配置流程

技术分享图片

配置参考URL：https://developers.weixin.qq.com/miniprogram/dev/api/api-network.html

二、nginx中配置反向代理加密websocket(wss)

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upstream websocket{
 
hash $remote_addr consistent;
 
server 127.0.0.1:9090 weight=5 max_fails=3 fail_timeout=30s;
}
server {
 
listen 80;
 
server_name www.xxxx.cn;
 
rewrite ^(.*)$ https:
//$host$1 permanent;
}
server
 
{
 
listen 443;
  
server_name www.xxxx.cn;
  
ssl on;
  
root /home/wwwroot/yzcp;
  
index index.php index.html index.htm;
  
ssl_certificate /usr/local/nginx/conf/cert/1526060965511.pem;
#这里是服务端证书路径
  
ssl_certificate_key /usr/local/nginx/conf/cert/1526060965511.key;
#这里是密钥路径
  
ssl_session_timeout 5m;
  
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
  
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
  
ssl_prefer_server_ciphers on;
  
ssl_verify_client off;
 
#隐藏index.php
  
location / {
 
#index index.php;
 
deny 127.0.0.1;
   
if
(!-e $request_filename) {
    
#一级目录
    
rewrite ^(.*)$ /index.php?s=$1 last;
    
break
;
   
}
   
#wss配置
   
client_max_body_size 100m;
   
proxy_redirect off;
   
proxy_pass http:
//websocket;#反向代理转发地址
   
proxy_set_header Host $host;
# http请求的主机域名
   
proxy_set_header X-Real-IP $remote_addr;
# 远程真实IP地址
   
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
#反向代理之后转发之前的IP地址
   
proxy_read_timeout 604800s;
#websocket心跳时间，默认是60s
   
proxy_http_version 1.1;
   
proxy_set_header Upgrade $http_upgrade;
   
proxy_set_header Connection
"Upgrade"
;
  
}
  
location ~ .+\.php {
   
fastcgi_pass unix:/tmp/php-cgi.sock;
   
fastcgi_index index.php;
   
include fastcgi_params;
   
set $path_info
""
;
   
set $real_script_name $fastcgi_script_name;
    
if
($fastcgi_script_name ~
"^(.+?\.php)(/.+)$"
) {
    
set $real_script_name $1;
    
set $path_info $2;
   
}
   
fastcgi_param SCRIPT_FILENAME $document_root$real_script_name;
   
fastcgi_param SCRIPT_NAME $real_script_name;
   
fastcgi_param PATH_INFO $path_info;
  
}
  
  
#防盗链开始
  
location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
 
{
 
expires  30d;
 
}
 
location ~ .*\.(js|css)?$
 
{
 
expires  12h;
 
}
 
access_log /home/wwwlogs/www1537ucn.log;
 
}

三、安装swoole

编译安装:

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wget http:
//pecl.php.net/get/swoole-1.9.3.tgz  //下载swoole
tar -zvxf swoole-1.9.3.tgz 
//解压swoole
cd swoole-1.9.3/; 
//进入swoole
/usr/local/php54/bin/phpize; 
//生成configure
./configure --
with
-php-config=/usr/local/php/bin/php-config
make && make install  
//安装
cd /phpstudy/server/php/lib/php/extensions/no-debug-non-zts-20121212
//查看是否安转上了swoole.so (注意：此文件下边都是你安装的拓展)
vim /phpstudy/server/php/etc/php.ini 
//在php.ini添加extension=swoole.so加入到文件最后一行
lnmp restart;
//重启nginx
php -m;
//查看phpinfo,这时候swoole拓展已经装上了

四、服务器端运行程序

1、创建server.php放到项目的根目录即可

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<?php
//实例化一个swoole的websocket服务监听本机的9501端口
$server =
new
swoole_websocket_server(
"服务器IP"
, 9090);
//只需要绑定要监听的ip和端口。如果ip指定为127.0.0.1，则表示客户端只能位于本机才能连接，其他计算机无法连接。
//端口这里指定为9090，可以通过netstat查看下该端口是否被占用。如果该端口被占用，可更改为其他端口，如9502，9503等。
$server->on(
‘open‘
,
function
(swoole_websocket_server $server, $request) {
 
echo
"你好连接成功{$request->fd}\n"
;
});
$server->on(
‘message‘
,
function
(swoole_websocket_server $server, $frame) {
 
foreach($server->connections as $key => $fd) {
  
$user_message = $frame->data;
  
$server->push($fd, $user_message);
 
}
});
$server->on(
‘close‘
,
function
($ser, $fd) {
 
echo
"client {$fd} closed\n"
;
});
$server->start();
?>

2、由于swoole_server只能运行在CLI模式下，所以不要试图通过浏览器进行访问，这样是无效的,我们在命令行下面执行,注意一定要找到php的绝对路径php  server.php  （这行代码的意思是，把程序在服务器跑起来）

注意：php server.php命令运行后，下面的黑框关闭后将无法聊天。所以一般使用命令：nohup php server.php &

技术分享图片

五、客户端

1、网页代码

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<!DOCTYPE html>
<html>
<head>
 
<meta charset=
"utf-8"
>
 
<title>聊天</title>
 
<style type=
"text/css"
>
  
#show{
   
width: 600px;
   
height: 300px;
   
overflow-y: scroll;
  
}
  
.my-message{
   
background-color: rgba(105, 105, 105, 0.64);
   
color:
#9e0505;
   
width: 200px;
   
float: right;
   
padding: 10px;
  
}
  
.other-message{
   
background-color: rgba(105, 105, 105, 0.64);
   
color:
#9e0505;
   
width: 200px;
   
float: left;
   
padding: 10px;
  
}
 
</style>
</head>
<body>
 
<div id=
"show"
></div>
 
<div class=
"panel"
>
  
内容：<textarea id=
"content"
></textarea>
  
收信人：<input type=
"text"
id=
"touser"
>
  
<input type=
"button"
id=
"send-btn"
value=
"发送"
>
  
<input type=
"button"
id=
"close-btn"
value=
"关闭"
>
 
</div>
</body>
<script src=
"__PUBLIC__/js/jquery-1.10.2.min.js"
charset=
"utf-8"
></script>
<script type=
"text/javascript"
>
 
var
socket =
new
WebSocket(
"wss://域名"
);
 
$(
"#close-btn"
).click(
function
() {
  
socket.close();
 
})
 
$(
"#send-btn"
).click(
function
() {
  
var
touser = $(
"#touser"
).val();
  
var
content = $(
"#content"
).val();
  
var
htmlstr =
"<div><p class=‘my-message‘>我："
+content+
"</p></div>"
;
  
$(
"#show"
).append(htmlstr);
  
socket.send(content+
"@"
+touser);
 
})
 
socket.onmessage =
function
(p1) {
  
var
htmlstr =
"<div><p class=‘other-message‘>"
+p1.data+
"</p></div>"
;
  
$(
"#show"
).append(htmlstr);
 
}
</script>
</html>

2、小程序端的代码

Uitls/websocket.js：

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var
url =
‘wss://www.xxx.cn‘
;//服务器地址
function
connect(user, func) {
 
wx.connectSocket({
 
url: url,
 
header: {
‘content-type‘
:
‘application/json‘
},
 
success:
function
() {
  
console.log(
‘websocket连接成功~‘
)
 
},
 
fail:
function
() {
  
console.log(
‘websocket连接失败~‘
)
 
}
 
})
 
wx.onSocketOpen(
function
(res) {
 
wx.showToast({
  
title:
‘websocket已开通~‘
,
  
icon:
"success"
,
  
duration: 2000
 
})
 
//接受服务器消息
 
wx.onSocketMessage(func);
//func回调可以拿到服务器返回的数据
 
});
 
wx.onSocketError(
function
(res) {
 
wx.showToast({
  
title:
‘websocket连接失败，请检查！‘
,
  
icon:
"none"
,
  
duration: 2000
 
})
 
})
}
//发送消息
function
send(msg) {
 
wx.sendSocketMessage({
 
data: msg
 
});
}
module.exports = {
 
connect: connect,
 
send: send
}

JS：

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// pages/socks/socks.js
const app = getApp()
var
websocket = require(
‘../../utils/websocket.js‘
);
var
utils = require(
‘../../utils/util.js‘
);
Page({
 
/**
 
* 页面的初始数据
 
*/
 
data: {
 
newslist: [],
 
userInfo: {},
 
scrollTop: 0,
 
increase:
false
,
//图片添加区域隐藏
 
aniStyle:
true
,
//动画效果
 
message:
""
,
 
previewImgList: []
 
},
 
/**
 
* 生命周期函数--监听页面加载
 
*/
 
onLoad:
function
() {
 
var
that =
this
 
if
(app.globalData.userInfo) {
  
this
.setData({
  
userInfo: app.globalData.userInfo
  
})
 
}
 
//调通接口
 
websocket.connect(
this
.data.userInfo,
function
(res) {
  
// console.log(JSON.parse(res.data))
  
var
list = []
  
list = that.data.newslist
  
list.push(JSON.parse(res.data))
  
that.setData({
  
newslist: list
  
})
 
})
 
},
 
// 页面卸载
 
onUnload() {
 
wx.closeSocket();
 
wx.showToast({
  
title:
‘连接已断开~‘
,
  
icon:
"none"
,
  
duration: 2000
 
})
 
},
 
//事件处理函数
 
send:
function
() {
 
var
flag =
this
 
if
(
this
.data.message.trim() ==
""
) {
  
wx.showToast({
  
title:
‘消息不能为空哦~‘
,
  
icon:
"none"
,
  
duration: 2000
  
})
 
}
else
{
  
setTimeout(
function
() {
  
flag.setData({
   
increase:
false
  
})
  
}, 500)
  
websocket.send(
‘{ "content": "‘
+
this
.data.message +
‘", "date": "‘
+ utils.formatTime(
new
Date()) +
‘","type":"text", "nickName": "‘
+
this
.data.userInfo.nickName +
‘", "avatarUrl": "‘
+
this
.data.userInfo.avatarUrl +
‘" }‘
)
  
this
.bottom()
 
}
 
},
 
//监听input值的改变
 
bindChange(res) {
 
this
.setData({
  
message: res.detail.value
 
})
 
},
 
cleanInput() {
 
//button会自动清空，所以不能再次清空而是应该给他设置目前的input值
 
this
.setData({
  
message:
this
.data.message
 
})
 
},
 
increase() {
 
this
.setData({
  
increase:
true
,
  
aniStyle:
true
 
})
 
},
 
//点击空白隐藏message下选框
 
outbtn() {
 
this
.setData({
  
increase:
false
,
  
aniStyle:
true
 
})
 
},
 
//发送图片
 
chooseImage() {
 
var
that =
this
 
wx.chooseImage({
  
count: 1,
// 默认9
  
sizeType: [
‘original‘
,
‘compressed‘
],
// 可以指定是原图还是压缩图，默认二者都有
  
sourceType: [
‘album‘
,
‘camera‘
],
// 可以指定来源是相册还是相机，默认二者都有
  
success:
function
(res) {
  
// 返回选定照片的本地文件路径列表，tempFilePath可以作为img标签的src属性显示图片
  
var
tempFilePaths = res.tempFilePaths
  
// console.log(tempFilePaths)
  
wx.uploadFile({
   
url:
‘wss://www.xxx.cn‘
, //服务器地址
   
filePath: tempFilePaths[0],
   
name:
‘file‘
,
   
headers: {
   
‘Content-Type‘
:
‘form-data‘
   
},
   
success:
function
(res) {
   
if
(res.data) {
    
that.setData({
    
increase:
false
    
})
    
websocket.send(
‘{"images":"‘
+ res.data +
‘","date":"‘
+ utils.formatTime(
new
Date()) +
‘","type":"image","nickName":"‘
+ that.data.userInfo.nickName +
‘","avatarUrl":"‘
+ that.data.userInfo.avatarUrl +
‘"}‘
)
    
that.bottom()
   
}
   
}
  
})
  
}
 
})
 
},
 
//图片预览
 
previewImg(e) {
 
var
that =
this
 
//必须给对应的wxml的image标签设置data-set=“图片路径”，否则接收不到
 
var
res = e.target.dataset.src
 
var
list =
this
.data.previewImgList
//页面的图片集合数组
 
//判断res在数组中是否存在，不存在则push到数组中, -1表示res不存在
 
if
(list.indexOf(res) == -1) {
  
this
.data.previewImgList.push(res)
 
}
 
wx.previewImage({
  
current: res,
// 当前显示图片的http链接
  
urls: that.data.previewImgList
// 需要预览的图片http链接列表
 
})
 
},
 
//聊天消息始终显示最底端
 
bottom:
function
() {
 
var
query = wx.createSelectorQuery()
 
query.select(
‘#flag‘
).boundingClientRect()
 
query.selectViewport().scrollOffset()
 
query.exec(
function
(res) {
  
wx.pageScrollTo({
  
scrollTop: res[0].bottom
// #the-id节点的下边界坐标
  
})
  
res[1].scrollTop
// 显示区域的竖直滚动位置
 
})
 
},
})

WXML:

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<!--pages/socks/socks.wxml-->
<view class=
"news"
bindtap=
‘outbtn‘
>
<view class=
"chat-notice"
wx:
if
=
"{{userInfo}}"
>系统消息: 欢迎 {{ userInfo.nickName }} 加入聊天室</view>
<view class=
"historycon"
>
<scroll-view scroll-y=
"true"
class=
"history"
scroll-top=
"{{scrollTop}}"
>
<block wx:
for
=
"{{newslist}}"
wx:key>
 
<!-- 历史消息 -->
<!-- <view class=
"chat-news"
>
<view style=
"text-align: left;padding-left: 20rpx;"
>
<image class=
‘new_img‘
src=
"{{item.avatarUrl? item.avatarUrl:‘images/avator.png‘}}"
></image>
<text class=
"name"
>{{ item.nickName }}{{item.date}}</text>
</view>
<view class=
‘you_left‘
>
<block wx:
if
=
"{{item.type==‘text‘}}"
>
<view class=
‘new_txt‘
>{{item.content}}</view>
</block>
<block wx:
if
=
"{{item.type==‘image‘}}"
>
<image class=
"selectImg"
src=
"{{item.images}}"
></image>
</block>
</view>
</view> -->
<view>{{item.date}}</view>
<!--自己的消息 -->
<view class=
"chat-news"
wx:
if
=
"{{item.nickName == userInfo.nickName}}"
>
<view style=
"text-align: right;padding-right: 20rpx;"
>
<text class=
"name"
>{{ item.nickName }}</text>
<image class=
‘new_img‘
src=
"{{userInfo.avatarUrl}}"
></image>
</view>
<view class=
‘my_right‘
>
<block wx:
if
=
"{{item.type==‘text‘}}"
>
<view class=
‘new_txt‘
>{{item.content}}</view>
</block>
<block wx:
if
=
"{{item.type==‘image‘}}"
>
<image class=
"selectImg"
src=
"{{item.images}}"
data-src=
"{{item.images}}"
lazy-load=
"true"
bindtap=
"previewImg"
></image>
</block>
</view>
</view>
<!-- 别人的消息 -->
<view class=
"chat-news"
wx:
else
>
<view style=
"text-align: left;padding-left: 20rpx;"
>
<image class=
‘new_img‘
src=
"{{item.avatarUrl? item.avatarUrl:‘images/avator.png‘}}"
></image>
<text class=
"name"
>{{ item.nickName }}</text>
</view>
<view class=
‘you_left‘
>
<block wx:
if
=
"{{item.type==‘text‘}}"
>
<view class=
‘new_txt‘
>{{item.content}}</view>
</block>
<block wx:
if
=
"{{item.type==‘image‘}}"
>
<image class=
"selectImg"
src=
"{{item.images}}"
data-src=
"{{item.images}}"
lazy-load=
"true"
bindtap=
"previewImg"
></image>
</block>
</view>
</view>
</block>
</scroll-view>
</view>
</view>
<view id=
"flag"
></view>
<!-- 聊天输入 -->
<view class=
"message"
>
<form bindreset=
"cleanInput"
class=
"sendMessage"
>
<input type=
"text"
placeholder=
"请输入聊天内容.."
value=
"{{massage}}"
bindinput=
‘bindChange‘
></input>
<view class=
"add"
bindtap=
‘increase‘
>+</view>
<button type=
"primary"
bindtap=
‘send‘
formType=
"reset"
size=
"small"
button-hover=
"blue"
>发送</button>
</form>
<view class=
‘increased {{aniStyle?"slideup":"slidedown"}}‘
wx:
if
=
"{{increase}}"
>
<view class=
"image"
bindtap=
‘chooseImage‘
>相册 </view>
</view>
</view>

WXSS:

?

 

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/* pages/socks/socks.wxss */
page {
background-color:
#f7f7f7;
height: 100%;
}
/* 聊天内容 */
.news {
padding-top: 30rpx;
text-align: center;
/* height:100%; */
box-sizing:border-box;
}
#flag{
margin-bottom: 100rpx;
height: 30rpx;
}
.chat-notice{
text-align: center;
font-size: 30rpx;
padding: 10rpx 0;
color:
#666;
}
.historycon {
height: 100%;
width: 100%;
/* flex-direction: column; */
display: flex;
border-top: 0px;
}
/* 聊天 */
.chat-news{
width: 100%;
overflow: hidden;
}
.chat-news .my_right {
float: right;
/* right: 40rpx; */
padding: 10rpx 10rpx;
}
.chat-news .name{
margin-right: 10rpx;
}
.chat-news .you_left {
float: left;
/* left: 5rpx; */
padding: 10rpx 10rpx;
}
.selectImg{
display: inline-block;
width: 150rpx;
height: 150rpx;
margin-left: 50rpx;
}
.my_right .selectImg{
margin-right: 80rpx;
}
.new_img {
width: 60rpx;
height: 60rpx;
border-radius: 50%;
vertical-align: middle;
margin-right: 10rpx;
}
.new_txt {
max-width: 300rpx;
display: inline-block;
border-radius: 6rpx;
line-height: 60rpx;
background-color:
#95d4ff;
padding: 5rpx 20rpx;
margin: 0 10rpx;
margin-left: 50rpx;
}
.my_right .new_txt{
margin-right:60rpx;
}
.you{
background-color: lightgreen;
}
.my {
border-color: transparent transparent transparent
#95d4ff;
}
.you {
border-color: transparent
#95d4ff transparent transparent;
}
.hei{
margin-top: 50px;
height: 20rpx;
}
.history {
height: 100%;
margin-top: 15px;
padding: 10rpx;
font-size: 14px;
line-height: 40px;
word-
break
:
break
-all;
}
::-webkit-scrollbar {
width: 0;
height: 0;
color: transparent;
z-index: -1;
}
/* 信息输入区域 */
.message{
position: fixed;
bottom:0;
width: 100%;
}
.sendMessage{
display: block;
height: 80rpx;
padding: 10rpx 10rpx;
background-color:
#fff;
border-top: 2rpx solid
#eee;
border-bottom: 2rpx solid
#eee;
z-index:3;
}
.sendMessage input{
float:left;
width: 66%;
height: 100%;
line-height: 80rpx;
border-bottom: 1rpx solid
#ccc;
padding:0 10rpx;
font-size: 35rpx;
color:
#666;
}
.sendMessage view{
display: inline-block;
width: 80rpx;
height: 80rpx;
line-height: 80rpx;
font-size: 60rpx;
text-align: center;
color:
#999;
border: 1rpx solid
#ccc;
border-radius: 50%;
margin-left: 10rpx;
}
.sendMessage button {
float: right;
font-size: 35rpx;
}
.increased{
width:100%;
/* height: 150rpx; */
padding: 40rpx 30rpx;
background-color:
#fff;
}
.increased .image{
width: 100rpx;
height: 100rpx;
border: 3rpx solid
#ccc;
line-height: 100rpx;
text-align: center;
border-radius: 8rpx;
font-size:35rpx;
}
@keyframes slidedown {
from {
transform: translateY(0);
}
to {
transform: translateY(100%);
}
}
.slidedown {
animation: slidedown 0.5s linear ;
}
.slideup {
animation: slideup 0.5s linear ;
}
@keyframes slideup {
from {
transform: translateY(100%);
}
to {
transform: translateY(0);
}
}

转载：https://www.jb51.net/article/145846.htm

 

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