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 session   Please help

User · Answer

You can resolve it by using org springframework web servlet mvc support RedirectAttributes   Here is my controller sample    RequestMapping method   RequestMethod POST      public String eligibilityPost               ModelAttribute  form    Valid EligibiltyForm form              Model model              RedirectAttributes redirectAttributes            if eligibilityService validateEligibility form                redirectAttributes addFlashAttribute  form   form               return  redirect  lt redirect to your page gt                     return  eligibility           read more on my blog at http   mayurshah in 596 how-do-i-redirect-to-page-keeping-model-value

User · Answer

I had same problem    With RedirectAttributes after refreshing page  my model attributes from first controller have been lost  I was thinking that is a bug  but then i found solution  In first controller I add attributes in ModelMap and do this instead of  redirect    return  forward  nameOfView    This will redirect to your another controller and also keep model attributes from first one   I hope this is what are you looking for  Sorry for my English

User · Answer

If you want just pass all attributes to redirect     public String yourMethod        HttpServletRequest request  RedirectAttributes redirectAttributes        if shouldIRedirect              redirectAttributes addAllAttributes request getParameterMap             return  redirect  newPage html

User · Answer

I use spring 3 2 3 and here is how I solved similar problem  1   Added RedirectAttributes redirectAttributes to the method parameter list in controller 1   public String controlMapping1           ModelAttribute  mapping1Form   final Object mapping1FormObject          final BindingResult mapping1BindingResult          final Model model           final RedirectAttributes redirectAttributes    2   Inside the method added code to add flash attribute to redirectAttributes redirectAttributes addFlashAttribute  mapping1Form   mapping1FormObject    3   Then  in the second contoller use method parameter annotated with  ModelAttribute to access redirect Attributes   ModelAttribute  mapping1Form   final Object mapping1FormObject   Here is the sample code from Controller 1    RequestMapping value       mapping1     method   RequestMethod POST  public String controlMapping1           ModelAttribute  mapping1Form   final Object mapping1FormObject          final BindingResult mapping1BindingResult          final Model model           final RedirectAttributes redirectAttributes         redirectAttributes addFlashAttribute  mapping1Form   mapping1FormObject        return  redirect mapping2          From Contoller 2    RequestMapping value     mapping2   method   RequestMethod GET  public String controlMapping2           ModelAttribute  mapping1Form   final Object mapping1FormObject          final BindingResult mapping1BindingResult          final Model model         model addAttribute  transformationForm   mapping1FormObject        return  new view

User · Answer

Using just redirectAttributes addFlashAttribute      - gt   redirect      worked as well  didn t have to  reinsert  the model attribute   Thanks  aborskiy

User · Answer

Add all model attributes to the redirecting URL as query string

User · Answer

I used  ControllerAdvice   please check is available in Spring 3 X  I am using it in Spring 4 0    ControllerAdvice  public class CommonController extends ControllerBase   Autowired MyService myServiceInstance        ModelAttribute  userList       public List lt User gt  getUsersList                  some code        return

User · Answer

I think that the most elegant way to do it is to implement custom Flash Scope in Spring MVC   the main idea for the flash scope is to store data from one controller till next redirect in second controller  Please refer to my answer on the custom scope question   Spring MVC custom scope bean  The only thing that is missing in this code is the following xml configuration    lt bean id  flashScopeInterceptor  class  com vanilla springMVC scope FlashScopeInterceptor    gt   lt bean id  handlerMapping  class  org springframework web servlet mvc annotation DefaultAnnotationHandlerMapping  gt     lt property name  interceptors  gt       lt list gt  lt ref bean  flashScopeInterceptor   gt  lt  list gt     lt  property gt   lt  bean gt

User · Answer

Maybe you could do it like this   Don t use the model in first controller  Store data in some other shared object which could be then retrieved by second controller   Look at this and this post  It s about the similar issue   P S   You could probabbly use session scoped bean for that shared data

User · Answer

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

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

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