Redirecting to a controller in SpringMvc - spring-mvc

Question

I have a class which has multiple controller in it and from one of the controller i want to call another controller which is in different class and when the particular controller is called that controller will create the view.
my codes are
class one // class from which controller will be called
#Controller
#RequestMapping(value="/register")
public class PatientController {
#RequestMapping(value="/demo1", method=RequestMethod.GET)
public String demo1(){
System.out.println("Demo1 method.....");
return "redirect:user/dashboard";
}
}
Class second // controller of this class to be called
#Controller
#RequestMapping("/user")
public class UserDasboardController {
#RequestMapping(value="/dashboard", method=RequestMethod.GET)
public String get(ModelMap model){
return "userdashboard";// returning view
}
}
after the first controller is called gives url as ".../register/user/dashboard"
however it should give url as"..../user/dashboard".
please suggest how can I achieve this.
Or there is any other way of doing same thing.

Answer 1

when using redirect for the same controller file we can use this as
return "redirect: controllerName"
if you want to call the controller of another class you have to call it as using / before it so that will be as
"redirect:/firstController/yourSubController"
Hope this helps.

Answer 2

Another solution is: MvcUriComponentsBuilder MvcUriComponentsBuilder docs
There are some great methods like: fromMethod(), fromController() and more.
You can receive proper redirection path to another method/controller automatically.
Example - redirect to another controller:
final UriComponentsBuilder uriComponents = MvcUriComponentsBuilder.fromController(WheredoYouWantToRedirectController.class);
final String path = uriComponents.build().getPath();
return REDIRECT_PREFIX+path;
In the same way you may work with redirection to methods.
MvcUriComponentsBuilder helps to reduce errors connected with redirections.
Please check documentation for more info.