Pass geolocation JavaScript values to a Bean

Question

I have to pass geolocation values got by using html5 geolocation to my managed bean ItemMb, here is my code to clarify things and i don't really know how to achieve this.

My managed bean

public class ItemMb {

    private Item item = new Item();

    // get/set
}

My dto Item

public class Item {

//  private Double idCollect;
    // login et password
    private Double lat;
    private Double lon;
    private Double accuracy;
    private String photo;
    private String remark;

    public Item(){
    }
// getters and setters

Here is my .js file where i got geolocations values and innertext them in some primefaces tags

window.watchID = navigator.geolocation.watchPosition(function(position){              

      document.getElementById("xCurrentPosition").innerHTML = (Math.round(position.coords.latitude*100) / 100);
      document.getElementById("yCurrentPosition").innerHTML = (Math.round(position.coords.longitude*100) / 100);
      document.getElementById("accuracyCurrentPosition").innerHTML = position.coords.accuracy;    

      });

Now i want to pass those JavaScript generated geolocation values to my managed bean ItemMb. If you need more informations feel free to ask.

How are you firing the request to the server to initialize the managed bean: through a GET request by changing the current URL or through an ajax request? — Luiggi Mendoza, Mar 20 '14 at 14:55
throught a GET request, for my page navigation i use prettyfaces — Junctionbe, Mar 20 '14 at 15:31

Junctionbe · Accepted Answer · 2016-08-01T10:16:42.387

I've finally found the answer, i will let it there in case if someone has the same problem. You have to follow these steps:

1) Define a primefaces remoteCommand

<p:remoteCommand name="myRemoteCommand" process="@this" autoRun="false" actionListener="#{myMb.myListener}"/>

2) Call the command in your JavaScript code

myRemoteCommand ([{name:'paramName1',   value: 'paramValue1'}, {name:'paramName2',     value: 'paramValue2'}, …]);

3) In the backing bean use this method

void myListener(){
                String param1 = (String) FacesContext.getInstance().getExternalContext().getRequestParameterMap().get("paramName1");
                …
}

Should't the method be: getCurrentInstance()? – Emmanuel Santana Feb 22 '18 at 22:59 — Emmanuel Santana, Feb 22 '18 at 22:59

score 0 · Answer 2 · answered Mar 20 '14 at 14:25

0

Here is the JavaScript code in the HTML5 application. i've tested it works.

navigator.geolocation.getCurrentPosition(function(position) {

    //lon      
    var lon = position.coords.longitude;

    //lat
    var lat = position.coords.latitude;

    //alert(lon+", "+lat);



    });

answered Mar 20 '14 at 14:25

Tekinnn

19
4

That's not what i want unfortunally:p In my code i already display those value , but what i want is to store those geolocation value as data from my Item, i would like to set lon, lat and accuracy into Item property – Junctionbe Mar 20 '14 at 14:34
but you do not want to in html5? i see from you code in java or android or so – Tekinnn Mar 20 '14 at 14:39
I want to pass those values to my managed bean because I need to make a POST request in my Java code – Junctionbe Mar 20 '14 at 14:48

Pass geolocation JavaScript values to a Bean

2 Answers2