Question

我正在构建使用Express Framework和Socket.io的简单Node.js应用程序。我遇到了困难，但试图通过不同的快速路线从服务器接收消息。有没有办法接收通过服务器从一条路由发送到另一条路由的消息？我在下面给出了一个非常简化的代码版本：

app.js

select * from a
where trunc(a.eff_dt) between trunc(to_date('01/01/2015','MM/DD/YYYY')) 
and trunc(to_date('01/02/2015','MM/DD/YYYY'))
and br_type = 'ASD'

内部公用文件夹

AnotherPage.html

var express = require("express"),
    app = express(),
    http = require("http").createServer(app),
    fs = require("fs"),
    io = require("socket.io").listen(http);

//Create a server
var port = 9001;
http.listen(port, function() {
  console.log("Server is running on port " + port);
});

//Set up routes
var anotherPage = express.Router();
anotherPage.route('/')
.get(function(req, res, next) {
  res.sendFile('/AnotherPage.html', {root: './public'});
});
var someOtherPage = express.Router();
someOtherPage.route('/')
.get(function(req, res, next) {
  res.sendFile('/SomeOtherPage.html', {root: './public'});
});

//Set up static directories
app.use(express.static(__dirname + "/public"))
    .use('/anotherpage', anotherPage)
    .use('/someotherpage', someOtherPage);

io.sockets.on("connection", function(socket) {
  socket.on("send message", function(data) {
    socket.emit('return message', data);
  });
});

anotherPage.js

<!DOCTYPE html>
<html>
<head>
  <title>Sender</title>
  <script type="text/javascript" src="/socket.io/socket.io.js"></script>
  <script src="/anotherPage.js"></script>
</head>
<body>
  <input id="input" type="text" />
  <button onclick="sendMessage()">Submit</button>
</body>
</html>

SomeOtherPage.html

var socket = io.connect();

function sendMessage() {
  socket.emit("send message", document.getElementById('input').value );
}

socket.on('return message', function(data){
  //Working
  console.log(data);
});

someOtherPage.js

<!DOCTYPE html>
<html>
<head>
  <title>Receiver</title>
  <script type="text/javascript" src="/socket.io/socket.io.js"></script>
  <script src="/someOtherPage.js"></script>
</head>
<body>
  //TODO
</body>
</html>

Answer 1

正如我在评论中所说，服务器上的socket.emit只会向一个客户端发送return message，与收到send message的客户端相同。如果您想发送给任何倾听的人，请改用io.sockets.emit;或socket除socket.broadcast.emit以外的所有人。

基本上，你想知道别人为什么不能窃听私人谈话。 :)它与Express路由无关，而与socket.io API有关。

跨越不同Node.js路由的Socket.io

内部公用文件夹

1 个答案: