ModelAttribute « MVC « Spring Q&A





1. what do the terms formBackingObject and ModelAttribute mean in Spring MVC?    stackoverflow.com

I guess I don't understand the difference between a "FormBackingObject" and a "ModelAttribute" in spring MVC. Seems like both gets initiated and populated by Spring with an incoming request.

2. what is @ModelAttribute in spring MVC?    stackoverflow.com

kindly elaborate it?

3. How to prevent @ModelAttribute to instantiate a calendar in a method    stackoverflow.com

I have a method in a controller:

public FormValidationResult submitFormAndSendEmail(@Valid ContactForm form, BindingResult result,
  @HttpSessionParam(value = "lastTimeContactFormSent", required = false) Calendar lastTimeContactFormSent)
As you can see I have created a @HttpSessionParam annotation, ...

4. Using @RequestBody and @ModelAttribute together?    stackoverflow.com

I'm trying to get at the body of a POST, and I'd like the parameters of my method to bind to an object. Is this possible? My current declaration doesn't ever get hit:

 ...

5. Can ModelAttribute be primitive?    stackoverflow.com

I am having a strange problem with ModelAttribute in Spring MVC 3.0. When I deploy the app at localhost, it works fine. But when I deploy the app on a remote ...

6. Did I understand @ModelAttribute right?    stackoverflow.com

I need help with understanding following example with @ModelAttribute from Spring documentation: (method populatePetTypes())

@Controller
@RequestMapping("/owners/{ownerId}/pets/{petId}/edit")
@SessionAttributes("pet")
public class EditPetForm {

    // ...

    @ModelAttribute("types")
    public Collection<PetType> ...

7. Java - Spring 3.0 MVC and @ModelAttribute    stackoverflow.com

I need some clarification about Spring 3.0 MVC and @ModelAttribute annotated method parameter. I have a Controller which looks like this one:

RequestMapping(value = "/home")
@Controller
public class MyController {

 @RequestMapping(method = RequestMethod.GET)
 public ...

8. @ModelAttribute annoted methods: how to deal with these methods dependencies ?    forum.springsource.org

Hello, I'am confronted to the problem of two annotated method with @ModelAttribute which are dependent : an calling order should be maintained. How can we do that with spring Portlet MVC ...

9. Just a question about a problem with @ModelAttribute    forum.springsource.org

Just a question about a problem with @ModelAttribute Hello, I'am confronting to a problem where I need "dynamic" generation of the instance binder. Suppose I have a method where the binder ...





10. Errors / BindingResult : @ModelAttribute mandatory ?    forum.springsource.org

Hello, I have the usual error Code: Errors/BindingResult argument declared without preceding model attribute. Check your handler method signature! Meaning that if there is a declaration of Errors/BindingResult in method argument ...

11. Spring MVC forEach and @ModelAttribute problem    forum.springsource.org

Spring MVC forEach and @ModelAttribute problem Hey there. My form is empty, no data Code: @ModelAttribute public AdminPanel getPanel() { AdminPanel panel = new AdminPanel(); panel.setSimulators(this.simulatorDao.getAll()); return panel; } this.simulatorDao.getAll() returns ...

12. @modelattribute and dealing with inheritance    forum.springsource.org

@modelattribute and dealing with inheritance I have a PublishPoint class and a PodcastPoint class that extends it. I'm using hibernate to get a list of PublishPoint objects using a discriminator value ...

13. @ModelAttribute: Interactions between 'referenceData' and 'formBackingObject'    forum.springsource.org

@ModelAttribute: Interactions between 'referenceData' and 'formBackingObject' I'm trying to convert our most complicated spring 2 controller to spring 3 with annotations. This controller has a ton of reference data, and some ...

14. Issue with @ModelAttribute enums when upgrading from 3.0.5 to 3.1.0.M2    forum.springsource.org

Issue with @ModelAttribute enums when upgrading from 3.0.5 to 3.1.0.M2 Hello, I have been using Spring 3.0.5 for a while now and everything has been working just fine. I have a ...

15. @ModelAttribute in springController Use?    forum.springsource.org

Yes you can have more attributes, but it wont affect to loading. Also from your questions looks you are new bee, so i personally suggest you that refer Spring Ref doc, ...

16. Using @ModelAttribute with java enum's    forum.springsource.org

Using @ModelAttribute with java enum's I get: Code: org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.....AccountRequest$Status]: No default constructor found; nested exception is java.lang.NoSuchMethodException: com.....AccountRequest$Status.() ...





17. cannot get @ModelAttribute to work    forum.springsource.org

cannot get @ModelAttribute to work I am trying to use the model attribute annotation to populate the "nav" variable with my navigation data for use on the jsp. I am using ...

18. HashMap @ModelAttribute?    forum.springsource.org

I did a few brief searches but didn't really turn up anything conclusive. Are there any examples floating about of using a HashMap as one's ModelAttribute? I've got a rather large ...

19. Multiple @ModelAttribute ?    forum.springsource.org

Hello, I have a problem using Validator in annotated controller. I'm using controller with annotation, everything is ok but when I use a method with two ModelAttribute, the validator doesn't care ...

20. ModelAttribute problem    forum.springsource.org

ModelAttribute problem Hi, I have a problem with the @ModelAttribute and @SessionAttributes usages. Basically, I have a JSP with a form and a controller with the related form backing bean and ...

21. @ModelAttribute method seems to be called to often    forum.springsource.org

I've created the following class. Code: @Controller public class BasicController { @RequestMapping(value = "/carts", method=RequestMethod.POST) public Cart addProductToCart(@RequestParam("productId") long productId) {} @ModelAttribute("cart") public Cart prepareCart(@PathVariable long cartId) {} @RequestMapping("/carts/{cartId}") public Cart ...

22. Override @ModelAttribute    forum.springsource.org

Override @ModelAttribute In our webapp, we have created a BaseController that has a lot of global methods and variables. We have several fields marked with @ModelAttribute to automatically expose them to ...

23. @ModelAttribute not setting values    forum.springsource.org

@ModelAttribute not setting values Hi All, I am using ExtJs with Spring3 REST. So I designed a form in ExtJs. Following is the signature of my update method at controller Code: ...

24. is ModelAttribute necessary    forum.springsource.org

I have my controllers setup for REST and i want to use one for authenticating a user. So they will be POSTing a username and password, but not from a jsp ...

25. An interesting finding - @ModelAttribute & BindingResult    forum.springsource.org

In the submit method (the RequestMethod.POST one) of an annotation form controller, if you use @ModelAttribute and BindingResult, the BindingResult must immediately follow the @ModelAttribute. Otherwise, you get an error: "Errors/BindingResult ...

26. @ModelAttribute confusion    forum.springsource.org

That is exactly what the docs say... The chosen @RequestMapping annoted method is the method chosen by the DefaultAnnotationHandlerAdapter and all @ModelAttribute methods execute before that.

27. @ModelAttribute Question?    forum.springsource.org

i have a small question about the @ModelAttribute annotation the @RequestParam annotation have an equivalent way in the code which is request.getParameter so is there's something similar to get a model ...

28. @ModelAttribute is called twice ?    forum.springsource.org

Hi all, this my first post so forgive any mistakes (wrong subject ...). i have wrote a controoler that handle a form that can be dynamicly expanded and bind the tha ...

29. Unable to understand @ModelAttribute    forum.springsource.org

@RequestMapping(value="/adminrole", method=RequestMethod.GET) public @ResponseBody boolean isPlantAdmin(@RequestParam String user, ModelMap model) { boolean isAdmin = false; isAdmin = webctxAppUserDAO.isAdminUser(user); model.addAttribute("plants",webctxPlantDAO.findAllPlantsforUser(user)); return isAdmin; }

30. ModelAttribute value not in sessino- how to catch error?    forum.springsource.org

ModelAttribute value not in sessino- how to catch error? I have a method in my controller like such: Code: @RequestMapping( value = "/session-search/page/{page}", method = RequestMethod.GET ) public String sessionSearchResultPage( Model ...

31. Removing/substituting a @ModelAttribute    forum.springsource.org

Hi, I need to be able to put another object as a model attribute during request handling. Say I have: Code: @RequestMapping(...) public ModelAndView handle(@ModelAttribute("pet") Dog d){ return new ModelAndView("view", "pet", ...

32. Losing ModelAttribute    forum.springsource.org

Nov 18th, 2010, 11:03 AM #1 akabir77 View Profile View Forum Posts Private Message Junior Member Join Date Oct 2010 Posts 22 Losing value from my ModelAttribute hi What i am ...