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javavalidationspring-mvcannotations

@initbinder not working for specific model attribute

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?

Solution

  • 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.