Set session attribute using javascript

Question

I'm using jqueryui autocomplete combobox in my jsp page. I need to set selected value of combo-box to the HttpSession.

I tried as below.

this._on(this.input, {
    autocompleteselect: function (event, ui) {
        // alert(ui.item.value);
        var value = ui.item.value;
        <% session.setAttribute("comboboxvalue",value); %>  

        ui.item.option.selected = true;
        this._trigger("select", event, {
            item: ui.item.option
        });
}

Problem with this way is that code don't recognize value param.

How can I solve this and set session attribute using javascript ?

Answer 1

Here is how I achieved my task successfully.

I have created a new servlet and trigger an AJAX call as below. Then I set comboboxvalue to session from servlet.

this._on( this.input, {
    autocompleteselect: function( event, ui ) {
        $.ajax({
        type: 'POST',
        url: 'AjaxServlet',
        dataType : 'json',
        data: { comboboxvalue : ui.item.value  }
        });
        ui.item.option.selected = true;
        this._trigger( "select", event, {
            item: ui.item.option
        });
    },

    autocompletechange: "_removeIfInvalid"
});