Question

我需要使用Google Javascript API而不是使用google-api npm模块来显示位置。因此，基本上，我需要在NodeJs服务器中利用脚本代码。但是，我遇到了错误-

Cannot GET /views/location.html

当我在浏览器中输入 localhost：8080 / views / location.html

我需要接受的位置，然后使用Javascript API将其显示在地图上。请指导我。我创建了以下页面-

server.js

var express  =   require('express');
var app  =   express();
const path = require('path');

var restify = require('restify');
var bodyParser = require('body-parser');
var mysql = require('mysql');

 app.use(bodyParser.json());
 app.use(bodyParser.urlencoded({ extended: false }));
 app.use(express.static ('public'));

 app.set('view engine', 'ejs');

var cors = require('cors')  // Not required.

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

app.set('views', path.join(__dirname, 'views'));

app.engine('html', require('ejs').renderFile);
app.set('view engine', 'html');

app.use('/', require('./display.js'));

app.get('/', function(req, res) {
    res.redirect('./views/location.html');
  });

app.listen(8080,(req,res)=>{
    console.log('server running on port 8080')
})

display.js

var express = require('express');

var router = express.Router();

var map, infoWindow;

router.post('/', seekLocation);
//router.post('/abc', tmsServer);

 module.exports = router;


//working code below


function seekLocation(req, res) { 

    console.log("INSIDE NODE JS CONTROLLER OF seekLocation");

    console.log("BODY IS ", req.body);

        map = new google.maps.Map(document.getElementById('map'), {
          center: {lat: -34.397, lng: 150.644},
          zoom: 6
        });
        infoWindow = new google.maps.InfoWindow;

        // Try HTML5 geolocation.
        if (navigator.geolocation) {
          navigator.geolocation.getCurrentPosition(function(position) {
            var pos = {
              lat: position.coords.latitude,
              lng: position.coords.longitude
            };

            infoWindow.setPosition(pos);
            infoWindow.setContent('Location found.');
            infoWindow.open(map);
            map.setCenter(pos);
          }, function() {
            handleLocationError(true, infoWindow, map.getCenter());
          });
        } else {
          // Browser doesn't support Geolocation
          handleLocationError(false, infoWindow, map.getCenter());
        }
      }

      function handleLocationError(browserHasGeolocation, infoWindow, pos) {
        infoWindow.setPosition(pos);
        infoWindow.setContent(browserHasGeolocation ?
                              'Error: The Geolocation service failed.' :
                              'Error: Your browser doesn\'t support geolocation.');
        infoWindow.open(map);

}


console.log("Inside seekLocation.js")

location.html

<html>
  <head>
    <title>Geolocation</title>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
    <meta charset="utf-8">
    <style>
      /* Always set the map height explicitly to define the size of the div
       * element that contains the map. */
      #map {
        height: 425px;
      }
      /* Optional: Makes the sample page fill the window. */
      html, body {
        height: 100%;
        margin: 0;
        padding: 0;
      }
    </style>
  </head>
  <body>
    <div id="map"></div>
    <script async defer
    src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDXlYBEQbsnyDl-N1ntSqjMjZaks8&callback=initMap">
    </script>
  </body>
</html>

如何使用Google Javascript API解决我在Nodejs中面临的路由问题？

0 个答案: