Odtnhj

Why didn't the model.asMap() in method annotated with @ModelAttribute (i.e AM1 here) didn't return any model data but in the @RequestMapping(i.e HM1 here) it does.

View:

<form:form action="SignupValidate.htm" modelAttribute="ma_CustomerTO">
CustName:<form:input path="CustName" />
CustSpouse:<form:input path="CustSpouse" />

I have submitted the form with fields values CustName=abc CustSpouse=xyz

Contoller:

@Controller
@RequestMapping("/Customer")
public class CustomerController 
 //-------------------------------------//
 @ModelAttribute("ma_CustomerTO")
 public CustomerTO AM1(Model model) 
 logger.debug(model.asMap()); //-----> does not print the model attributes from view???
 CustomerTO customer=new CustomerTO(); 
 customer.setCustName("Sheldon");
 customer.setCustSpouse("Amy");
 logger.debug(model.asMap());
 return customer;
 
 //-------------------------------------//
 @RequestMapping("/SignupValidate.htm")
 public ModelAndView HM1(Model model,@ModelAttribute("ma_CustomerTO") CustomerTO customer)
 logger.debug(model.asMap());//-----> but this one prints
 

I have think possibly this should be happening. The @ModelAttribute on method would not create a attribute for model until the end of the method.

Every method with @ModelAttribute annotated will be called before receiving request from client in order to initialize model for your view. That's the use of method leveled @ModelAttribute.

The model in your @ModelAttribute method doesn't know about ma_CustomerTO because it is called before your SignupValidate.htm method is processed