Question

我正在尝试在Google地图上显示实时位置。我正在使用socket.io。我每五秒钟定期将json响应发送到我的map.js文件，以更新实时跟踪。

index.php

<script src="static/js/map.js<?php echo "?id=".$_GET["id"];?>"></script>
<script src="http://localhost:3000/socket.io/socket.io.js"></script>

app.js

var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
var https = require('https');
var request = require('request');
app.get('/', function(req, res) {
   res.sendfile('js\\map.js');


});
//Whenever someone connects this gets executed

    setInterval(function() {
       urlString = "http://example.com?trip_id=76";

      request(urlString, function(err, response, data) {
        if (err) {
          console.log("error on request", err);
        } else {
          console.log('data');
          // send to all connected clients
          io.emit('message', data);
        }
      });

    }, 5000);
    io.on('connection', function(socket) {
      console.log('A user connected');

      socket.on('disconnect', function () {
          console.log('A user disconnected');
      });
    });


    http.listen(3000, function() {
       console.log('listening on *:3000');
    });

map.js

var socket = io('http://localhost:3000');
                    socket.on('message', function(data){

                    obj = JSON.parse(data);
                    var liveCenter = new google.maps.LatLng(obj.lat,obj.lng);

在地图上的位置更新和正常工作。但显示错误

GET http://localhost/socket.io/?EIO=3&transport=polling&t=MJBroGa 404 (Not Found)

我做错了什么？我是socket.io的新手，可以帮助我解决此问题。或建议我其他解决方法。谢谢

响应从socket.io中的app.js发送到javascript文件时控制台出现错误

0 个答案: