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

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 &

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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本文链接：https://www.cnblogs.com/behindman/p/9522589.html