Javascript 访问快速路线时加入socket.IO房间
在访问我的Express应用程序中的特定路径时,加入socket.IO文件室时遇到问题 因此,我目前有以下设置: app.jsJavascript 访问快速路线时加入socket.IO房间,javascript,node.js,express,socket.io,Javascript,Node.js,Express,Socket.io,在访问我的Express应用程序中的特定路径时,加入socket.IO文件室时遇到问题 因此,我目前有以下设置: app.js var express = require('express'); var app = express(); var http = require('http').Server(app); var socketio = require('socket.io').listen(http); var socketjs = require(libs + 'sockets/so
var express = require('express');
var app = express();
var http = require('http').Server(app);
var socketio = require('socket.io').listen(http);
var socketjs = require(libs + 'sockets/socket.js');
...
var server = http.listen(app.get('port'), function() {
debug('Taskful server listening on port ' + app.get('port'));
log.info('Taskful server listening on port ' + app.get('port'));
});
global.socketIO = socketio;
socketjs.connect(server);
var libs = process.cwd() + '/libs/';
var log = require(libs + 'log')(module);
module.exports.connect = function(server) {
var io = global.socketIO;
io.on('connection', function (socket) {
//This comes through
log.info('Connection to socket.io');
});
}
var io = global.socketIO;
...
router.get('/:id', function(req, res) {
projectController.findByIdExtended(req, res, function(err, ret) {
if (err) {
res.redirect('/projects');
}
req.session.viewingProject = req.params.id;
//I would like to be able to join the room here
io.room = 'project_' + req.session.viewingProject;
io.join(io.room);
var db_project = ret[0];
var db_tasks = ret[1];
res.render('project', { user : req.user, project : db_project, tasks: db_tasks });
});
});
sockets/socket.js
var express = require('express');
var app = express();
var http = require('http').Server(app);
var socketio = require('socket.io').listen(http);
var socketjs = require(libs + 'sockets/socket.js');
...
var server = http.listen(app.get('port'), function() {
debug('Taskful server listening on port ' + app.get('port'));
log.info('Taskful server listening on port ' + app.get('port'));
});
global.socketIO = socketio;
socketjs.connect(server);
var libs = process.cwd() + '/libs/';
var log = require(libs + 'log')(module);
module.exports.connect = function(server) {
var io = global.socketIO;
io.on('connection', function (socket) {
//This comes through
log.info('Connection to socket.io');
});
}
var io = global.socketIO;
...
router.get('/:id', function(req, res) {
projectController.findByIdExtended(req, res, function(err, ret) {
if (err) {
res.redirect('/projects');
}
req.session.viewingProject = req.params.id;
//I would like to be able to join the room here
io.room = 'project_' + req.session.viewingProject;
io.join(io.room);
var db_project = ret[0];
var db_tasks = ret[1];
res.render('project', { user : req.user, project : db_project, tasks: db_tasks });
});
});
Route-projects.js
var express = require('express');
var app = express();
var http = require('http').Server(app);
var socketio = require('socket.io').listen(http);
var socketjs = require(libs + 'sockets/socket.js');
...
var server = http.listen(app.get('port'), function() {
debug('Taskful server listening on port ' + app.get('port'));
log.info('Taskful server listening on port ' + app.get('port'));
});
global.socketIO = socketio;
socketjs.connect(server);
var libs = process.cwd() + '/libs/';
var log = require(libs + 'log')(module);
module.exports.connect = function(server) {
var io = global.socketIO;
io.on('connection', function (socket) {
//This comes through
log.info('Connection to socket.io');
});
}
var io = global.socketIO;
...
router.get('/:id', function(req, res) {
projectController.findByIdExtended(req, res, function(err, ret) {
if (err) {
res.redirect('/projects');
}
req.session.viewingProject = req.params.id;
//I would like to be able to join the room here
io.room = 'project_' + req.session.viewingProject;
io.join(io.room);
var db_project = ret[0];
var db_tasks = ret[1];
res.render('project', { user : req.user, project : db_project, tasks: db_tasks });
});
});
在评论中,我希望在访问路由时加入socket IO室
我试过io.sockets.join
但它们都不是函数。从控制台日志中可以看出,全局IO作用域是完全正确的
使用EventEmitter并只接收事件以加入socket.js文件中的文件室是否更容易做到这一点?如果有,有什么办法吗
非常感谢您的帮助。您可以在特定的socket.io套接字上调用socket.join()
。您不能调用io.join()
或io.sockets.join()
。因此,您需要获取要放在房间中的特定套接字
对象,然后调用:
socket.join('project_' + req.session.viewingProject);
在上面
如果您试图获取与发出当前路由请求的用户关联的特定套接字
,则必须在套接字和路由之间建立关联(通常使用已知的cookie标识符)。您可以从路由中查找该cookie值,然后使用该值为当前用户找到正确的socket
对象
您似乎已经在使用会话,因此应该已经有了一个cookie标识符,可以用来将路由与特定的socket.io连接相关联。您可能需要创建一个映射对象,将('connection')上的io.on和('disconnect')上的socket.on关联起来,这样您就可以获取会话ID并在该映射中查找正确的套接字对象
注意:您使用:
var io = global.socketIO;
在projects.js的开头,作为模块变量有点反模式。这将创建一个模块加载定时依赖项,其中必须在加载projects.js
模块之前完成对global.socketIO
的分配,否则代码将无法工作。由于模块计时(尤其是循环依赖)可能是一个复杂的问题,因此这不是创建或拥有的理想情况
代码中的一个细微变化,要么根本不使用globals(通过显式地将socketIO
值传递给projects.js构造函数),要么只移动var io=global.socketIO将>编码到每个需要它作为局部变量的路由中,将完全删除此加载时间依赖关系