Node.js 如何从express route内发射到socket.io房间

我有以下代码结构：

/app.js

var user = require('./server/routes/api/user');
var io = require('socket.io').listen(server);
require('./server/sockets/base')(io);

router.post('/login', function(req, res){
 // HERE I WANT TO EMIT THE EVENT BY USING io.to("someroom").emit("news", "news");
 // I TRIED req.socket.emit('news', { hello: 'world' }); without luck
}

var server = require('./app.js');
var io = require('socket.io').listen(server);
module.exports = io;

module.exports = server;
var user = require('./server/routes/api/user');
var io = require('./socket.js');
require('./server/sockets/base')(io);

var io = require('../../../socket.js');
router.post('/login', function(req, res){
    io.to("someroom").emit("news", "news");
}

我知道我可以通过以下方式发出事件（已测试且有效）

问题是，我希望能够从我的路由文件发出事件，该文件无权访问io对象

/routes/api/user.js

var user = require('./server/routes/api/user');
var io = require('socket.io').listen(server);
require('./server/sockets/base')(io);

router.post('/login', function(req, res){
 // HERE I WANT TO EMIT THE EVENT BY USING io.to("someroom").emit("news", "news");
 // I TRIED req.socket.emit('news', { hello: 'world' }); without luck
}

var server = require('./app.js');
var io = require('socket.io').listen(server);
module.exports = io;

module.exports = server;
var user = require('./server/routes/api/user');
var io = require('./socket.js');
require('./server/sockets/base')(io);

var io = require('../../../socket.js');
router.post('/login', function(req, res){
    io.to("someroom").emit("news", "news");
}

---

使用此文件夹结构发射的最简单方法是什么？

您的路由需要

io

对象，因此您必须将其作为参数传递

在user.js中：

module.exports = function (io) {

    // all of this router's configurations

    router.post('/login', function (req, res, next) {
        io.to('someroom').emit('news', 'news');
    });

    return router;

}

使用路由时，请将其引用到

io

：

app.use(..., user(io));

---

只需导出套接字，并在任何您想从中使用它的文件中要求它

/socket.js

var user = require('./server/routes/api/user');
var io = require('socket.io').listen(server);
require('./server/sockets/base')(io);

router.post('/login', function(req, res){
 // HERE I WANT TO EMIT THE EVENT BY USING io.to("someroom").emit("news", "news");
 // I TRIED req.socket.emit('news', { hello: 'world' }); without luck
}

var server = require('./app.js');
var io = require('socket.io').listen(server);
module.exports = io;

module.exports = server;
var user = require('./server/routes/api/user');
var io = require('./socket.js');
require('./server/sockets/base')(io);

var io = require('../../../socket.js');
router.post('/login', function(req, res){
    io.to("someroom").emit("news", "news");
}

/app.js

var user = require('./server/routes/api/user');
var io = require('socket.io').listen(server);
require('./server/sockets/base')(io);

router.post('/login', function(req, res){
 // HERE I WANT TO EMIT THE EVENT BY USING io.to("someroom").emit("news", "news");
 // I TRIED req.socket.emit('news', { hello: 'world' }); without luck
}

var server = require('./app.js');
var io = require('socket.io').listen(server);
module.exports = io;

module.exports = server;
var user = require('./server/routes/api/user');
var io = require('./socket.js');
require('./server/sockets/base')(io);

var io = require('../../../socket.js');
router.post('/login', function(req, res){
    io.to("someroom").emit("news", "news");
}

/routes/api/user.js

var user = require('./server/routes/api/user');
var io = require('socket.io').listen(server);
require('./server/sockets/base')(io);

router.post('/login', function(req, res){
 // HERE I WANT TO EMIT THE EVENT BY USING io.to("someroom").emit("news", "news");
 // I TRIED req.socket.emit('news', { hello: 'world' }); without luck
}

var server = require('./app.js');
var io = require('socket.io').listen(server);
module.exports = io;

module.exports = server;
var user = require('./server/routes/api/user');
var io = require('./socket.js');
require('./server/sockets/base')(io);

var io = require('../../../socket.js');
router.post('/login', function(req, res){
    io.to("someroom").emit("news", "news");
}

然后在路由器里

router.get('/', (req, res) => {
  req.app.get('io').to('someroom').emit('news', 'news');
});

---

据我所知，您不能使用tpc连接，但混合使用https请求和套接字调用是行不通的。@jack.the.ripper可能他只是想在有人使用HTTP登录时通知房间。您是否尝试过导出io并从另一个文件中请求它？@liadmat我尝试过类似的方法，但在web请求中执行任何套接字操作时遇到了很多问题，如果您对如何执行有可靠的参考资料，我希望取得成功，干杯@jack.the.ripper，我添加了一个答案在我的应用程序中发生的是，用户设置了他的当前位置，而我的node.js服务器存储了该位置。基于该用户位置，我的节点服务器+mongodb返回几个附近的位置，我想向这些附近的位置广播一条消息。到目前为止，这打断了我的路由，但我正在调查它似乎无法摆脱我在所有用户路由上得到的错误“无效HTTP状态代码404”。解决了这个问题，我的404路由在我的用户路由之前加载。谢谢你的回答，这解决了我的问题！问题是服务器变量在socket.js中不可用。它是在app.js中声明的，比如：var server=app.listen（app.get（'port'）、function（）{debug（'Express server侦听端口'+server.address（）.port）；console.log（“Express server start！”）；}@乔尔现在退房。从

app.js

导出服务器，并在

socket.js

中要求它。