我正在尝试使用sailsjs创建一个实时应用程序。 我在youtube上看过教程，在那里寻找简单的解决方案。搜索了github的简单示例运行示例。我发现一些工作，但旧版本。无论我学到什么，发现我试图在我的应用程序中实现。
即sessionController.js
var bcrypt = require('bcrypt');
module.exports = {
'login':function (req, res) {
if (req.isSocket) {
return res.json({status: 403, redirectTo: "/sess/new"});
} else {
res.view('sess/new');
}
},
'create': function (req,res, next) {
if (!req.param('email') || !req.param('password')) {
var usernamePasswordRequiredError = [{name : 'usernamePasswordRequired', message:'You must enter both username and password'}]
req.session.flash ={
err: usernamePasswordRequiredError
}
res.redirect('/session/login');
return;
}
User.findOneByEmail(req.param('email'), function (err, user) {
if (err) return next(err);
if (!user) {
var noAccountError = [{name:'noAccount', message:'The email address '+req.param('email')+' not found'}];
req.session.flash = {
err:noAccountError
}
res.redirect('/session/login');
return;
};
bcrypt.compare(req.param('password'), user.password, function (err, valid) {
if (err) return next(err);
if (!valid) {
var usernamePasswordMismatchError = [{name:'usernamePasswordMismatch', message:'Invalid username and password combination'}]
req.session.flash = {
err: usernamePasswordMismatchError
}
res.redirect('/session/login');
return;
};
req.session.authenticated = true;
req.session.User = user;
user.online = true;
user.save(function (err,user) {
if (err) return next(err);
// Inform other sockets (e.g. connected sockets that are subscribed) that this user is now logged in
console.log('loged in publishUpdate');
User.publishUpdate(user.id, {
loggedIn: true,
id: user.id,
name: user.fillname,
action: ' has logged in.'
});
if (req.session.User.admin) {
res.redirect('/user');
return;
};
});
res.redirect('/user/');
});
});
},
'logout':function (req, res, next) {
User.findOne(req.session.User.id, function foundUser (err, user) {
var userId = req.session.User.id;
User.update(userId,{
online:false
}, function (err) {
if (err) return next(err);
// Inform other sockets (e.g. connected sockets that are subscribed) that the session for this user has ended.
User.publishUpdate(userId, {
loggedIn: false,
id: userId,
name: user.fullname,
action: ' has logged out.'
});
req.session.destroy();
return res.redirect('/session/login');
});
});
}
};
即userController.js
module.exports = {
'signup':function (req, res) {
if (req.isSocket) {
return res.json({status: 403, redirectTo: "/user/signup"});
} else {
res.view();
}
},
'create': function (req, res, next) {
console.log("got sothing "+req.param('fullname'));
//"req: "+req.param('fullname')
var params = {
'fullname' : req.param('fullname'),
'username' : req.param('username'),
'email' : req.param('email'),
'password' : req.param('password')
};
User.create( params,function userCreated(err, user) {
if (err) {
req.session.flash = {
err:err
}
return res.redirect('/user/signup');
}
req.session.authenticated = true;
req.session.User = user;
user.online = true;
user.save(function (err, user) {
if (err) return next(err);
User.publishCreate(user);
res.redirect('/user/show/'+user.id);
});
});
},
'update': function (req, res, next) {
var id = req.param('id');
var params = {
'fullname' : req.param('fullname'),
'username' : req.param('username'),
'email' : req.param('email')
};
User.update(req.param('id'), req.params.all(), function userUpdated(err, user) {
if(err){
return res.redirect('/user/edit/'+id);
} //return// next(err);
User.publishUpdate(user);
res.redirect('/user/show/'+id);
});
},
'show':function (req, res, next) {
var id = req.param('id');
User.findOne(req.param("id"), function foundUser (err, user) {
if(err) return next(err);
if(!user) return next();
User.publishUpdate(user);
res.view({
user:user
});
});
},
'index':function (req, res, next) {
User.find(function foundUsers (err, users) {
if(err) return next(err);
if (req.isSocket) {
return res.json({status: 403, redirectTo: "/user"});
} else {
res.view({
users:users
});
}
});
},
'edit':function (req, res, next) {
console.log("got sothing "+req.param('id'));
var id = req.param('id');
User.findOne(req.param("id"), function foundUser (err, user) {
if(err) return next(err);
if(!user) return next('User does\'t exist.');
res.view({
user:user
});
});
},
destroy :function (req, res, next) {
User.findOne(req.param('id'), function foundUser (err, user) {
if (err) return next(err);
if (!user) return next('User does\'t exist.');
User.destroy(req.param('id'), function userDestroyed (err) {
if (err) return next(err);
//publish
User.publishUpdate(user.id, {
name: user.fullname,
action: ' has been destroyed.'
});
// Let other sockets know that the user instance was destroyed.
User.publishDestroy(user.id);
});
res.redirect('/user');
});
},
'subscribe':function (req, res) {
User.find(function foundUsers (err, users) {
User.subscribe(req.socket, users);
res.send(200);
});
}
};
这是接收数据的app.js
io.socket.on('connect', function messageReceived() {
console.log(this.socket.sessionid);
this.socket.on('message', function (tmessage) {
console.log(tmessage);
this.socket.get('/user/subscribe');
});
});
问题很简单我没有在用户注册或退出或任何用户做任何事情时得到回复。我想我正在正确地发布行动，但不知道接收。 如果有人可以指出我正确的方向，那将是非常有帮助的。如果需要，我可以分享更多信息 我将在github上分享这个。所以对其他人来说，这将是充分的帮助 谢谢。
答案 0 :(得分：3)
您是否阅读过resourceful pub-sub的官方文档？它首先要说的是你应该听取以模型命名的事件 - 所以如果你想了解User模型发生的事情，你需要做的事情：
io.socket.on('user', ...)
不
io.socket.on('message', ...)
其次，正如Jason在上面提到的那样，您需要将套接字订阅到您想要接收通知的实例。您可以使用自定义subscribe操作执行此操作，但如果您启用了REST蓝图（默认设置），则该操作并非真正必要;只是做着
io.socket.get('/user', function(data){} )
将订阅请求套接字到所有返回的User实例。有关详细信息，请参阅docs for blueprint .find()。此调用不需要在io.socket.on调用之前显示，但它无法在处理程序中显示，因为它将永远不会被调用。因此，您可以将客户端代码重写为：
io.socket.on('connect', function socketConnected() {
console.log(this.socket.sessionid);
// Respond to user events. You can always safely use the
// global `io.socket` to bind event handlers
io.socket.on('user', function (tmessage) {
console.log(tmessage);
});
// Get the users and just spit them out to the console. This will also
// subscribe the socket to any events involving the returned users, which
// will then be handled by the `io.socket.on` code above.
io.socket.get('/user', console.log.bind(console));
});
有关各种套接字方法的详细演示，请参阅SailsChat示例应用程序。
答案 1 :(得分：0)
您的app.js代码似乎暗示您在从套接字收到消息时点击subscribe操作。
...
this.socket.on('message', function (tmessage) {
console.log(tmessage);
this.socket.get('/user/subscribe');
});
...
这可能是它失败的原因，因为套接字尚未与该集合相关联，因此它不会收到任何消息。尝试在消息处理程序之外移动套接字订阅调用。
...
this.socket.get('/user/subscribe');
this.socket.on('message', function (tmessage) {
console.log(tmessage);
});
...