how to mark user's current location on Primefaces Gmap?

Question

In Gmap we can mark, desired location by passing custom latitude and longitude. Is there any way to add marker to map for user\'s CURRENT LOCATION.? Is there a way to get us

Answer 1

You need to figure the user's IP address and then feed it to some IP geo location tool/API in order to get the geo location in latitude/longitude. Finally use this information for your Google Map.

All JSF can do for you is giving you the user's IP address as follows:

ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext();
HttpServletRequest request = (HttpServletRequest) externalContext.getRequest();
String ip = request.getRemoteAddr();
// ...

If you'd like to take proxies into account as well, then check X-Forwarded-For header:

ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext();
HttpServletRequest request = (HttpServletRequest) externalContext.getRequest();
String ip = request.getRemoteAddr();
String forwardedFor = request.getHeader("X-Forwarded-For");

if (forwardedFor != null) {
    ip = forwardedFor.split("\\s*,\\s*", 2)[0];
}

// ...

Which IP geo location tool/API you in turn have to use is a question which you've to answer yourself. Just feed the keywords "ip geo location" to Google to get started.