javascript - Socket.io 连接始终为 false

Question

我的socket.connected 始终是false，也无法发送或接收消息。

app.js

var app = require('./config/server');    
var http = require('http').Server(app);
var io = require("socket.io")(http);

http.listen(80, function(err)
{
    console.log(err);
    console.log('Server client instagram_clone_v01 online');
});

io.sockets.on('connection', function (socket)
{
    console.log("new user connected");
});

server side

var sockets = io();
sockets.on('connection', function ()
{
    console.log("connected");
    sockets.emit("newPhoto");
});

client side

const socket = io.connect("http://localhost:80");
console.log(socket.connected);

socket.on('error', function()
{
    console.log("Sorry, there seems to be an issue with the connection!");
});

socket.on('connect_error', function(err)
{
    console.log("connect failed"+err);
});

socket.on('connection', function ()
{
    console.log("connected");
    socket.on('newPhoto',function()
    {
        load_posts();
    });
});

没有任何“on”收到，甚至没有“error”。那么我怎样才能让它发挥作用呢？

Answer 1

我已经在本地检查了你的代码。

所以问题是你正在检查:.on('connection',...) 应该是 .on('connect', ...)

所以尝试这个修复:

socket.on('connect', function() {
  console.log("Connected to WS server");

  console.log(socket.connected); 

  load_posts();
});

socket.on('newPhoto', function(){
  load_posts();
});