what is the best way of defining methods in controller class of spring

[somashaker goud]

Hi Below is my controller class code where i got confused on what is best way of returning from methods (String or object of modelandView) and how view resolver will interpret if we return string or modelview object

    package com.soma.spring.mvc;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.servlet.ModelAndView;
     
    @Controller
    public class HelloWorldController {
     
      @RequestMapping("/")
      public String hello() {
        return "hello";
      }
     
      @RequestMapping(value = "/hi", method = RequestMethod.POST)
      public String hi(@RequestParam("name") String name, Model model) {
        String message = "Hi " + name + "!";
        model.addAttribute("message", message);
        return "hi";
      }
      
      @RequestMapping("/helloNew")  
      public ModelAndView helloWorld() {  
          String message = "HELLO SPRING MVC HOW R U";  
          return new ModelAndView("hi", "message", message);  
      }  
     
    }
     

[Tushar Goel]

if view is involved then ModelAndView is good option. Otherwise you can use ResponseEntity to return the object