socket.io不使用redis和webpack向房间广播示例

gg58donl 于 2021-06-09 发布在 Redis

关注(0)|答案(1)|浏览(388)

我正在尝试创建一个反例，如本文所述video:- https://www.youtube.com/watch?v=jyfjfcud4ps
但是，我发现socket.io只在设置连接后更新windows。因此，我将加载该页，并且计数器不会在该页上更新，但是如果有另一个窗口打开到相同的哈希值，则该页将更新。
这是我的客户端包.json：

"name": "socketio-client",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "webpack-dev-server --mode development --config ./webpack.config.js --inline --hot",
    "build": "webpack"
  },
  "babel": {
    "presets": [
      "env"
    ]
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "babel-core": "^6.26.3",
    "babel-loader": "^8.1.0",
    "babel-preset-env": "^1.7.0",
    "socket.io-client": "^2.3.0",
    "webpack": "^4.43.0",
    "webpack-cli": "^3.3.11"
  },
  "devDependencies": {
    "html-webpack-plugin": "^4.3.0",
    "webpack-dev-server": "^3.10.3"
  }
}

这是我的客户机index.js文件side:-

import io from 'socket.io-client';

const socket = io('http://localhost:9090');

socket.on('connect', function onConnect() {
    console.log('connected');
    if (window.location.hash) {
        const id = window.location.hash.substring(1);
        console.log('hash', id);
        socket.on('stats', function onStats(count) {
            console.log(count);
            document.getElementById('counter').innerHTML = count;
        });
        socket.emit('hello', { 'hashId': id });
    }
});

这是我的index.htmlpage:-

<html class="no-js" lang="">
    <head>
        <meta charset="utf-8">
        <meta http-equiv="description" content="">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title></title>
    </head>
    <body>
        <h1>Hit Counter is <span id="counter"></span></h1>
    </body>
</html>

这是我的webpack.config。json:-

const HtmlWebpackPlugin = require("html-webpack-plugin");

module.exports = {
    plugins: [
        new HtmlWebpackPlugin({
            template: __dirname + '/src/index.html'
        })
    ]
};

这是我的服务器端软件包。json:-

"name": "socketio-server",
  "version": "1.0.0",
  "description": "",
  "main": "server.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "redis": "^3.0.2",
    "socket.io": "^2.3.0"
  }
}

这是我的server.js文件（即我的服务器端可执行文件）

const io = require('socket.io')(9090);
    const redis = require('redis');
    const client = redis.createClient();

    io.on('connection', function onConnection(socket) {
        console.log('connected');

        socket.on('hello', function hello(hashId) {
            socket.join(hashId.hashId);

            client.incr(hashId.hashId, onUpdate);
            function onUpdate(err, count) {
                console.log(err);
                console.log(count);
                socket.to(hashId.hashId).emit('stats', count);
            }
        });
    });

我在服务器端运行node server.js，在客户端项目中运行npm run start。
然后在不同的浏览器窗口中点击以下urlhttp://localhost：8080/#asdf公司

redis node.js socket.io webpack-4

来源：https://stackoverflow.com/questions/61583087/socket-io-not-broadcasting-to-room-using-redis-and-webpack-example

1条答案

按热度按时间

muk1a3rh1#

好的，解决了我的问题。在下面的代码中，

const io = require('socket.io')(9090);
const redis = require('redis');
const client = redis.createClient();

io.on('connection', function onConnection(socket) {
    console.log('connected');

    socket.on('hello', function hello(hashId) {
        socket.join(hashId.hashId);

        client.incr(hashId.hashId, onUpdate);
        function onUpdate(err, count) {
            console.log(err);
            console.log(count);
            socket.to(hashId.hashId).emit('stats', count);
        }
    });
});

socket.to（hashid.hashid.emit（'stats'，count））；应该是io.to。这是我抄写的一个错误，不是在原始视频中。

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socket.io不使用redis和webpack向房间广播示例

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