使用socket.io将数据从Sails.js服务器发送到Angular2客户端

Question

I'm trying to emit a message from my server side Sails application to the front end Angular2. 我正在尝试从服务器端Sails应用程序向前端Angular2发出消息。 i want both client and server side to be in the same app, so after some searching I found this repo . 我希望客户端和服务器端都在同一个应用程序中，所以经过一番搜索后，我找到了这个仓库。 I had to import socket.io in typescript with the help of another stack overflow post and added @types/socket.io-client and socket.io-client in my package json. 我必须借助另一个堆栈溢出帖子将Type.soso.io导入socket.io，并在包json中添加了@types/socket.io-client和socket.io-client 。 I will include all of my files. 我将包括所有文件。
This is my initial vies/layout.ejs file 这是我最初的vies / layout.ejs文件

<!DOCTYPE html>
<html>
  <head>
    <title><%=typeof title == 'undefined' ? 'New Sails App' : title%></title>

    <!-- Viewport mobile tag for sensible mobile support -->
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">

    <!--STYLES-->
    <link rel="stylesheet" href="/styles/importer.css">
    <!--STYLES END-->

    <script src="node_modules/core-js/client/shim.min.js"></script>
    <script src="node_modules/zone.js/dist/zone.js"></script>
    <script src="node_modules/reflect-metadata/Reflect.js"></script>
    <script src="node_modules/systemjs/dist/system.src.js"></script>
  </head>

  <body>
    <%- body %>

    <!--SCRIPTS-->
    <script src="/js/dependencies/sails.io.js"></script>
    <script src="/js/systemjs.config.js"></script>
    <!--SCRIPTS END-->

    <script>
      System.import('app').catch(function(err){ console.error(err); });
    </script>

  </body>
</html>

in my system.js.config.js file I've added "socket.io-client": 'node_modules/socket.io-client/dist/socket.io.js' to my map and 'socket.io-client': {defaultExtension: 'js'} to packages. 在我的system.js.config.js文件中，我向地图和'socket.io-client': {defaultExtension: 'js'}添加了"socket.io-client": 'node_modules/socket.io-client/dist/socket.io.js' 'socket.io-client': {defaultExtension: 'js'}打包。
In my component I include it with import * as io from "socket.io-client"; 在我的组件中，我将import * as io from "socket.io-client";包含在内import * as io from "socket.io-client"; and after that I've 然后我

export class AppComponent implements OnInit {
    constructor(){}

    ngOnInit() {
        let socket = io();

        socket.on('message', function (data){
            console.log(data.greeting);
        }.bind(this));
    }
}

My back end is a simple controler 我的后端是一个简单的控制器

emit: function (req, res) {
    console.log('sending message');
    sails.sockets.broadcast('message', { greeting: 'Hola!' });
    return res.json(200, {success: true});
}

When I call the emit action I get sending message , but nothing logs in the front end. 当我调用emit动作时，我会sending message ，但是前端没有任何记录。 There are no errors anywhere, but nothing happens. 任何地方都没有错误，但是什么也没有发生。 If I log the socket variable I get this 如果我记录套接字变量，我得到这个

Is it possible to emit data from my back end Sails app to my front end Angular2 component? 是否可以将数据从后端Sails应用发送到前端Angular2组件？

Answer 1

您应该确保您加入了一个房间，广播方法仅广播到房间中所有连接的人

socket.join('roomName');

使用socket.io将数据从Sails.js服务器发送到Angular2客户端

问题描述

1 个解决方案

解决方案1
0 2018-01-06 13:28:46

使用socket.io将数据从Sails.js服务器发送到Angular2客户端

问题描述

1 个解决方案

解决方案1 0 2018-01-06 13:28:46

解决方案1
0 2018-01-06 13:28:46