Loading ModelMap from HTTP query parameters

[jaaro]

From spring doc about redirecting:

All model attributes are exposed as HTTP query parameters

After redirect, how can I add attributes from HTTP query parameters to ModelMap? Can I avoid adding attributes manually ?

@Controller
class SomeController {

    @RequestMapping(value = "/test_path", method = RequestMethod.POST)
    public String doPost(ModelMap modelMap) {
        modelMap.put("message", "OK");
        return "redirect:/test_path"; //redirect to /test_path?message=OK
    }
	
    @RequestMapping(value = "/test_path", method = RequestMethod.GET)
    public String doGet(ModelMap modelMap) {
	// PROBLEM: After redirect from POST request,
        // I would like modelMap to have the same attributes as they were set in POST request.
    }
}

Thanks,
Jarek

[Marten Deinum]

You will have to add them manually. If you are on Spring 3.1 you can use RedirectAttributes and store them in a flashmap and have them added automatically.