Question

您好我想使用以下对象将userID，userName和socketId存储到users数组中：

var userInfo = new Object();
            userInfo.userName = user.userName;
            userInfo.userId = user.userId;
            userInfo.socketId = socket.id;
            users.push(userInfo);

我使用此示例link创建了此对象。

现在我想显示这个对象值（userName，userId，socketId）如何在客户端显示这些值？

我不知道请帮帮我

var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
var users = [];
var roomName;
app.get('/', function(req, res){
    res.sendFile(__dirname + '/index.html');
});

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

    socket.on('create', function (channel) {
        socket.join(channel);
        roomName=channel;
        socket.channel=channel;
        console.log('room', roomName);
    });

    socket.on('addUser', function (user) {
        var userInfo = new Object();
        userInfo.userName = user.userName;
        userInfo.userId = user.userId;
        userInfo.socketId = socket.id;
        users.push(userInfo);
        updateClients();
    });

    socket.on('chat message', function(msg){

    });

    socket.on('disconnect', function(){

    });

    function updateClients() {
        io.to(socket.channel).emit('update', users);
        console.log('users list is ', users);
    }
});

http.listen(3000, function(){
    console.log('listening on *:3000');
});

Answer 1

我想了解你的要求，之后我想分享一些片段。

获取'addUser'触发器后，您需要将userinfo推送到数组中，同时需要为客户端发射。

<强> // server.js

    socket.on('addUser', function (user) {
            var userInfo = new Object();
            userInfo.userName = user.userName;
            userInfo.userId = user.userId;
            userInfo.socketId = socket.id;
            users.push(userInfo);
            updateClients(users);


        });

       function updateClients(usersInfo) {
          //io.emit('update', usersInfo);
          io.to(socket.channel).emit('update', usersInfo);
          console.log('users list is ', users);
        }

<强> //客户端

 var socket = io();    // in client.html
 var socket = require("socket.io")(http);   // in client.js
  socket.on('update',function(usersInfo){

          usersInfo.forEach(function(single_user){
            //now you can use userinfo object according to your requirement    
          });

          });

用户触发的用户的发射数据。所以你需要理解socket.io

的.on和.emit

如何在客户端显示socket io对象值？

1 个答案: