How do I addObject in Spring RedirectView

Question

I\'m kinda new to Spring and I\'d like to know how to addOject in RedirectView just like in ModelAndView where I can add objects that can be used in views.

Answer 1

To carry data across a redirect use RedirectAttributes.addFlashAttribute(key, value).

From the doc:

A RedirectAttributes model is empty when the method is called and is never used unless the method returns a redirect view name or a RedirectView.

After the redirect, flash attributes are automatically added to the model of the controller that serves the target URL.

public ModelAndView processData(
    @Valid final HostFinancialRequest formBean,
    final BindingResult bindingResult, 
    HttpServletRequest request, 
    @RequestParam String passbook,
    RedirectAttributes redirectAttributes) {
    
    // do work an then setup the redirect attributes
    
    redirectAttributes.addFlashAttribute("key", value);

    return new ModelAndView("redirect:/credit" + FORM_URL);
}