showgmap.ejs
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<!DOCTYPE html>
<html>
<head>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<title>Geocoding Service</title>
<script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
<style type="text/css">
#map {
height: 100%;
}
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
#floating-panel {
position: absolute;
top: 400px;
left: 25%;
z-index: 5;
background-color: #fff;
padding: 5px;
border: 1px solid #999;
text-align: center;
font-family: "Roboto", "sans-serif";
line-height: 30px;
padding-left: 10px;
}
</style>
<script>
// initMap은 처음 map을 켰을 때 화면을 생성하는 함수.
function initMap() {
const map = new google.maps.Map(document.getElementById("map"), {
zoom: 8,
center: { lat: 37.33, lng: 126.58 },
});
const geocoder = new google.maps.Geocoder();
document.getElementById("submit").addEventListener("click", () => {
geocodeAddress(geocoder, map);
});
}
// geocodeAddress는 주소를 처리하고, marker를 생성하는 함수이다.
function geocodeAddress(geocoder, resultsMap) {
const address = "<%= post.address %>";
geocoder.geocode({ address: address }, (results, status) => {
if (status === "OK") {
resultsMap.setCenter(results[0].geometry.location);
new google.maps.Marker({
map: resultsMap,
position: results[0].geometry.location,
draggable : false
});
} else {
alert(
"Geocode was not successful for the following reason: " + status
);
}
});
}
</script>
</head>
<body>
<div id="floating-panel">
<input id="submit" type="button" value="find location" />
</div>
<div class="container mb-3" id="map"></div>
<!-- Async script executes immediately and must be after any DOM elements used in callback. -->
<script
src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDK6K4iDdo9cKQdrNoOJaaYg29nEG0BIjw&callback=initMap&libraries=&v=weekly"
async
></script>
</body>
</html>