与 socket.io 私聊

Question

我的聊天应用程序出现问题，我需要能够向特定用户发送私人消息，我能够选择该特定用户，但由于某种原因无法弄清楚如何发送私人消息消息。

您将在下面找到我的服务器的代码，请帮助：

var express = require('express');
var app = express();
var PORT = process.env.PORT || 8000;
var http = require('http').Server(app); // this is a node server that uses express as the boiler plate
var io = require('socket.io')(http); // socket! pass our server as a parameter to it


// use express static to expose a folder
app.use(express.static(__dirname + '/public'));

var users = [],
	connections = [];
var onlineClients = {};




// Register events on socket connection
io.on('connection', function(socket){ 
	connections.push(socket);
	// console.log("connected socket", connections);

	socket.on("disconnect", function() {
		users.splice(users.indexOf(socket.username), 1);
		updateUsernames();
		connections.splice(connections.indexOf(socket), 1);
		console.log("disconnected socket", connections.length)
	});

	socket.on("send message", function(data) {
		// console.log(data);
		io.emit("new message", {msg: data, user: socket.username});
	});


	socket.on("notify user", function(data) {
		io.emit("notify user", {user: socket.username})
	});


	socket.on("new user", function(data) {
		socket.username = data;
		users.push(socket.username);
		updateUsernames();

	});

	function updateUsernames() {
		io.emit("get users", users);
	};

	socket.on("private", function(data, recipientName) {
		var recipient = connections.filter(function (recipient) {
			return recipient.username === recipientName;
		})[0];
			console.log(recipient.id);
			console.log(data);
		io.sockets.socket(recipient.id).emit("received private msg", data);

	});


	// socket.on("create room", function(room) {
	// 	socket.join(room);
	// 	io.sockets.in(room).emit('event', "hey wusup am in this room");
	// 	console.log(socket);

	// })

});

http.listen(PORT, function(){
  console.log('Server started on port ' + PORT);
});

Answer 1

• 首先在聊天室中添加用户，以便在您的私人聊天室中轻松找到用户

• 您加入私人房间的客户端代码

  <input type="text" class="form-control" id="user_email" placeholder="user_email"  />
  <button text="join room" class="btn btn-primary btn-block" onclick="a();"> Join Room</button>
  

• 您在客户端的 javascript 代码

  function a(){
      io.emit('privatechatroom', {email:document.getElementById('user_email').value});
  }
  

• 您的服务器端代码以在您的房间中添加用户

  socket.on('privatechatroom',function(data){
      socket.join(data.email);
      io.emit('res',{mes:"you are added"})
  });
  

现在您可以向最近添加到此房间的那个人发送私人消息 客户端

function b() {
    io.emit('sendmail', { email: document.getElementById('sender_mail').value, message: document.getElementById('message').value });
    $('#message').val('');
}

/*serverside code*/
socket.on('sendmail', function (data) {
    io.sockets.in(data.email).emit('new_msg', { msg: data.message });
    console.log(data.email);
});

Answer 2

这是我对您问题的明确解决方案...

Send a message to Particular client(Private chat)

我希望它对你有用..