How to trap location of mobile for web application? - mobile

Question

My application is in spring-hibernate.I am also using spring mobile for mobile specific design,we want to trace the location of our user on web application so that it shows particular data.How can i get the location of mobile in spring application.Thanks
the code is from w3school:
<script>
var x=document.getElementById("demo");
function getLocation()
{
if (navigator.geolocation)
{
navigator.geolocation.getCurrentPosition(showPosition);
}
else{x.innerHTML="Geolocation is not supported by this browser.";}
}
function showPosition(position)
{
x.innerHTML="Latitude: " + position.coords.latitude +
"<br>Longitude: " + position.coords.longitude;
}
</script>

Answer 1

Ok. Let it be.(corrected after your comments)
You have next choice:
use browser GeoLocation API. (from client side using browser geolocation API)
use approximate location by IP address. (from server side)
create mobile application for your service (in your case you can try Phonegap framework). (from client side using native OS API)
use browser expoits (and getting access to mobile OS API) but it is illegal.
Geolocation API
User is asked for permissions to report location information to your server. So user has choice to deny access to locationAfter you get geo coordinates - you can send it to your server i.e. via ajax call.
$('#buttongeo').click(function(e) {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
$("#lat").val(position.coords.latitude);
$("#lon").val(position.coords.longitude);
//
},
function(error) {
alert('Error');
},{timeout:5000});
}
else{
alert('no geolocation support');
}
});
Example with markup on jsfiddle