how should I open the index implementation on the home page of the website to query the relevant data from the background database and then bind it to the page?
how should I open the index implementation on the home page of the website to query the relevant data from the background database and then bind it to the page?
Map to a method through index, and return the data that ModelAndView,Model is queried, View is a page that jumps, and jsp can obtain the data in Model.
@RequestMapping("/index")
public ModelAndView index(){
ModelAndView mav = new ModelAndView();
//
//mav.setView();
return mav;
}