title: Request to update only part of the page Spring MVC
body: <p>I am new to Spring MVC. 
  When the page is loading for the first time, it executing the request and returns ModelAndView object. The same request (but with params user selected will be executed when Button1 clicked);</p>
  
  <p>I want to be able by clicking on another button (let's say Button2), execute another request that will return only Model that contains list of objects and update only PART of the page, while the data from the main request will be still on the page (except for the updated part).</p>
  
  <p>I'm not understanding how can I accomplish this. For my situation it's impossible to do both requests as one and update whole page when second button is clicked. I cannot do both requests in the same controller methods, because first request(Button1) is quite expensive for us because of huge amount of data it's loading. </p>