js+html5获取用户地理位置信息并在Google地图上显示的方法

时间:2020-05-13 pythoner 人气:0

本文实例讲述了js+html5获取用户地理位置信息并在Google地图上显示的方法。分享给大家供大家参考。具体实现方法如下：

<!DOCTYPE html>
<html>
<body>
<p id="demo">Click the button to get your position:</p>
<button onclick="getLocation()">Try It</button>
<div id="mapholder"></div>
<script>
var x=document.getElementById("demo");
function getLocation()
 {
 if (navigator.geolocation)
  {
  navigator.geolocation.getCurrentPosition(showPosition,showError);
  }
 else{x.innerHTML="Geolocation is not supported by this browser.";}
 }
function showPosition(position)
 {
 var latlon=position.coords.latitude+","+position.coords.longitude;
 var img_url="http://maps.googleapis.com/maps/api/staticmap?center="
 +latlon+"&zoom=14&size=400x300&sensor=false";
 document.getElementById("mapholder").innerHTML="<img src='"+img_url+"' />";
 }
function showError(error)
 {
 switch(error.code) 
  {
  case error.PERMISSION_DENIED:
   x.innerHTML="User denied the request for Geolocation."
   break;
  case error.POSITION_UNAVAILABLE:
   x.innerHTML="Location information is unavailable."
   break;
  case error.TIMEOUT:
   x.innerHTML="The request to get user location timed out."
   break;
  case error.UNKNOWN_ERROR:
   x.innerHTML="An unknown error occurred."
   break;
  }
 }
</script>
</body>
</html>

希望本文所述对大家的web程序设计有所帮助。

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