通过ajax调用获取弹出控制器的多选列表框值

I have a multi select list box. I want to send the user selected list box values to the spring controller. I'm making a ajax call to perform action. Please suggest through ajax call how can i send all the values from the multi selected list box to java spring controller and get all selected list box values. Please find the fiddle I have a multi select list box. I want to send