Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

请问koa2如何实现socket.io？ #22

Open
l20 opened this issue Sep 20, 2017 · 5 comments
Open

请问koa2如何实现socket.io？ #22

l20 opened this issue Sep 20, 2017 · 5 comments

Comments

@l20
Copy link

l20 commented Sep 20, 2017

我代码是这样的：

const Koa = require('koa');
const app = new Koa();
const server = require('http').Server(app.callback());
const io = require('socket.io')(server);

io.on('connection', function(socket){
  io.emit('this', { will: 'be received by everyone'});

  socket.on('private message', function (from, msg) {
    console.log('I received a private message by ', from, ' saying：', msg);
  });

  socket.on('disconnect', function () {
    io.emit('user disconnected');
  });

});

但是前端请求的时候找不到数据，该如何做呢，希望提供ko2的一些源码。
@lensh
Copy link
Owner

lensh commented Sep 21, 2017

const server = require('http').Server(app.callback());
改成
const server = require('http').createServer(app.callback());

@l20
Copy link
Author

l20 commented Sep 21, 2017

@lensh 还是不行啊，浏览器打印这要的错误,是什么原因请求不到呢？


socket.io.js:2 XHR finished loading: GET "http://localhost:3001/socket.io/?EIO=3&transport=polling&t=LwZ9ZPG".
i.create @ socket.io.js:2
i @ socket.io.js:2
o.request @ socket.io.js:2
o.doPoll @ socket.io.js:2
r.poll @ socket.io.js:2
r.doOpen @ socket.io.js:2
r.open @ socket.io.js:2
r.open @ socket.io.js:1
r @ socket.io.js:1
r @ socket.io.js:1
r.open.r.connect @ socket.io.js:1
(anonymous) @ socket.io.js:1
socket.io.js:2 GET http://localhost:3001/socket.io/?EIO=3&transport=polling&t=LwZ9ae6 404 (Not Found)
i.create @ socket.io.js:2
i @ socket.io.js:2
o.request @ socket.io.js:2
o.doPoll @ socket.io.js:2
r.poll @ socket.io.js:2
r.doOpen @ socket.io.js:2
r.open @ socket.io.js:2
r.open @ socket.io.js:1
r @ socket.io.js:1
r @ socket.io.js:1
r.open.r.connect @ socket.io.js:1
(anonymous) @ socket.io.js:1
socket.io.js:2 XHR finished loading: GET "http://localhost:3001/socket.io/?EIO=3&transport=polling&t=LwZ9ae6".

@lensh
Copy link
Owner

lensh commented Sep 21, 2017 •
edited
Loading

404不是已经很明显了吗？你看看端口是否一致，看服务端的代码是不是监听的3001端口。。。实在不行的话，你提供一下你项目的github地址吧，我再帮你看看。。。

@l20
Copy link
Author

l20 commented Sep 21, 2017

@lensh 感谢回答，是其他问题，错误找到了。

Repository owner deleted a comment from web525 Oct 17, 2017
@harry-code
Copy link

同样遇到，请问大佬是怎么解决的呢？

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
3 participants
@l20 @lensh @harry-code