@initbinder not working for specific model attribute

Question

I am using @valid and @initbinder for validation of the data being passed to the service but I am facing an issue that @InitBinder is working only globally,i.e.

@InitBinder // possible to leave off for global behavior
protected void initBinder(WebDataBinder binder){
    binder.setValidator(new LoginRequestValidator());
}

and not for a particular model attribute like I have an model object named LoginRequest :

@InitBinder("LoginRequest") // possible to leave off for global behavior
protected void initBinder(WebDataBinder binder){
    binder.setValidator(new LoginRequestValidator());
}

In this case the validator is not being called at all.. is this the right way to do this? or am I missing something?

Answer 1

Looking at the signature of your method it has to be

@InitBinder("loginRequest")

with a small l

The value of @InitBinder can be one of the following

• The name of a model attribute
• The name of a request parameter
• If none of the above apply, then the name of the class can be used, but starting with a small letter. That's how Spring exposes unnamed attributes to the model.