How to pass model attributes from one Spring MVC controller to another controller?

Question

I am redirecting from a controller to another controller. But I also need to pass model attributes to the second controller.

I don\'t want to put the model in sessi

Answer 1

By using @ModelAttribute we can pass the model from one controller to another controller

[ Input to the first Controller][1]

[]: https://i.stack.imgur.com/rZQe5.jpg from jsp page first controller binds the form data with the @ModelAttribute to the User Bean

@Controller
public class FirstController {
    @RequestMapping("/fowardModel")
    public ModelAndView forwardModel(@ModelAttribute("user") User u) {
        ModelAndView m = new ModelAndView("forward:/catchUser");
        m.addObject("usr", u);
        return m;
    }
}

@Controller
public class SecondController {
    @RequestMapping("/catchUser")
    public ModelAndView catchModel(@ModelAttribute("user")  User u) {
        System.out.println(u); //retrive the data passed by the first contoller
        ModelAndView mv = new ModelAndView("userDetails");
        return mv;
    }
}