Node.js 带快速生成器的socket.io

在写这篇文章之前，我在

终端在

/routes/messages.js:12上显示错误

io.on('connection', function(socket){
TypeError: Cannot read property 'on' of undefined

我的档案来了：

/routes/messages.js

var express = require('express');
var controller = require('../controllers/messageController');
var passport = require('passport');
var router = express.Router();


router.get('/', controller.plain);

module.exports = function(io){
  var router = express.Router();

  io.on('connection', function(socket){
    console.log('**********************************************************');
    console.log('mensaje desde socket.io en el archivo de rutas messages.js');
    console.log('**********************************************************');
  });
  return router;
};

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var morgan = require('morgan');
var mongoose = require('mongoose');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var session = require('express-session');
var socket = require('socket.io');

// var for routes
var index = require('./routes/index');
var users = require('./routes/users');
var projects = require('./routes/projects');
var messages = require('./routes/messages')(io);

var app = express();

// socket.io

var io = socket();
app.io = io;

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

// para devolver estado por consola.
app.use(morgan('combined'));
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
var Account = require('./models/accounts');
passport.use(new LocalStrategy(Account.authenticate()));
passport.serializeUser(Account.serializeUser());
passport.deserializeUser(Account.deserializeUser());

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
//app.use(multer({dest : "./userFiles/projectImage"}))

app.use(express.static(path.join(__dirname, 'public')));

app.use(require('express-session')({
    secret: 'secretpass',
    resave: true,
    saveUninitialized: true,
    cookie: { maxAge : 3600000 } //1 Hour
}));

app.use(passport.initialize());
app.use(passport.session());
//Rutas express
app.use('/', index);
app.use('/user', users);
app.use('/project', projects);
app.use('/message', messages)

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
  app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
      message: err.message,
      error: err
    });
  });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
  res.status(err.status || 500);
  res.render('error', {
    message: err.message,
    error: {}
  });
});

mongoose.connect('mongodb://localhost/db');



module.exports = app;

/bin/www

#!/usr/bin/env node
/**
 * Module dependencies.
 */

var app = require('../app');
var debug = require('debug')('archiers:server');
var http = require('http');

/**
 * Get port from environment and store in Express.
 */

var port = normalizePort(process.env.PORT || '3000');
app.set('port', port);


/**
 * Create HTTP server.
 */
var server = http.createServer(app);

// socket.io

var io = app.io;
io.attach(server);

/**
 * Listen on provided port, on all network interfaces.
 */

server.listen(port);
server.on('error', onError);
server.on('listening', onListening);

/**
 * Normalize a port into a number, string, or false.
 */

function normalizePort(val) {
  var port = parseInt(val, 10);

  if (isNaN(port)) {
    // named pipe
    return val;
  }

  if (port >= 0) {
    // port number
    return port;
  }

  return false;
}

/**
 * Event listener for HTTP server "error" event.
 */

function onError(error) {
  if (error.syscall !== 'listen') {
    throw error;
  }

  var bind = typeof port === 'string'
    ? 'Pipe ' + port
    : 'Port ' + port;

  // handle specific listen errors with friendly messages
  switch (error.code) {
    case 'EACCES':
      console.error(bind + ' requires elevated privileges');
      process.exit(1);
      break;
    case 'EADDRINUSE':
      console.error(bind + ' is already in use');
      process.exit(1);
      break;
    default:
      throw error;
  }
}

/**
 * Event listener for HTTP server "listening" event.
 */

function onListening() {
  var addr = server.address();
  var bind = typeof addr === 'string'
    ? 'pipe ' + addr
    : 'port ' + addr.port;
  debug('Listening on ' + bind);
}

/app.js

var express = require('express');
var controller = require('../controllers/messageController');
var passport = require('passport');
var router = express.Router();


router.get('/', controller.plain);

module.exports = function(io){
  var router = express.Router();

  io.on('connection', function(socket){
    console.log('**********************************************************');
    console.log('mensaje desde socket.io en el archivo de rutas messages.js');
    console.log('**********************************************************');
  });
  return router;
};

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var morgan = require('morgan');
var mongoose = require('mongoose');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var session = require('express-session');
var socket = require('socket.io');

// var for routes
var index = require('./routes/index');
var users = require('./routes/users');
var projects = require('./routes/projects');
var messages = require('./routes/messages')(io);

var app = express();

// socket.io

var io = socket();
app.io = io;

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

// para devolver estado por consola.
app.use(morgan('combined'));
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
var Account = require('./models/accounts');
passport.use(new LocalStrategy(Account.authenticate()));
passport.serializeUser(Account.serializeUser());
passport.deserializeUser(Account.deserializeUser());

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
//app.use(multer({dest : "./userFiles/projectImage"}))

app.use(express.static(path.join(__dirname, 'public')));

app.use(require('express-session')({
    secret: 'secretpass',
    resave: true,
    saveUninitialized: true,
    cookie: { maxAge : 3600000 } //1 Hour
}));

app.use(passport.initialize());
app.use(passport.session());
//Rutas express
app.use('/', index);
app.use('/user', users);
app.use('/project', projects);
app.use('/message', messages)

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
  app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
      message: err.message,
      error: err
    });
  });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
  res.status(err.status || 500);
  res.render('error', {
    message: err.message,
    error: {}
  });
});

mongoose.connect('mongodb://localhost/db');



module.exports = app;

在app.js中，您有以下代码：

var messages = require('./routes/messages')(io);

var app = express();

// socket.io

var io = socket();
app.io = io;

在将io变量传递给messages export函数之前，应初始化该变量-如下所示：

var app = express();

// socket.io

var io = socket();
app.io = io;

var messages = require('./routes/messages')(io);

在app.js中，您有以下代码：

var messages = require('./routes/messages')(io);

var app = express();

// socket.io

var io = socket();
app.io = io;

在将io变量传递给messages export函数之前，应初始化该变量-如下所示：

var app = express();

// socket.io

var io = socket();
app.io = io;

var messages = require('./routes/messages')(io);

Marcos当你真的想给@Gilad留言时，你不必问任何问题。对于您的问题，如果您从app.js中删除io.on（'conction'），并且您的messages.js中只有io.on（'connection'），会发生什么？我添加了var messages=require（'./路由/消息'）（io）；正如Gilad所说，这解决了错误，下一步是在有人连接到浏览器上的/message时查看日志消息。好的！所以试试我说的，也许app.js中的第二个io.on（'connection'）会覆盖messages.js文件中设置的第一个io.on（'connection'）。从你的app.js.你的app.js中删除一段代码io.on（连接，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，）在终端上没有发生任何事情发生任何事情发生在终端：*********************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************2016年5月9日：14:15:34+0000]“GET/message HTTP/1.1”500 2744“-”Mozilla/5.0（X11；Ubuntu；Linux x86_64；rv:46.0）Gecko/20100101 Firefox/46.0“GET/message 500 165.845 ms-2744 marcos当你真的想给@Gilad留下评论时，你不必回答任何问题。对于你的问题，如果你删除io.on（'Conction'），会发生什么在你的app.js中，你的messages.js中只有io.on（'connection'）？我添加了var messages=require（'./routes/messages'）（io）；正如Gilad所说，这可以解决错误，下一步是在有人连接到浏览器上的/message时查看日志消息。好吧！那么试试我说的，也许是第二个io.on（'connection'））位于您的app.js中的，将覆盖您在messages.js文件中设置的第一个。请删除io.on（'connection'，…）上的代码段从你的app.js从你的app.js从你的app.js从你的app.js从你的app.js从你的app.js在终端上什么事情都没有在终端上发生任何事情在终端上发生任何事情在终端上没有发生任何事情在终端上发生任何事情在终端上没有发生任何事情在终端上发生任何事情发生任何事情在任何事情在终端上发生任何事情发生在任何事情发生在任何事情：：******************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************“GET/message HTTP/1.1”500 2744“-”Mozilla/5.0（X11；Ubuntu；Linux x86_64；rv:46.0）Gecko/20100101 Firefox/46.0“GET/message 500 165.845 ms-2744