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Spring MVC Beginner’s Guide by Amuthan G

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Customizing data binding

In the last section, we saw how to bind data submitted by an HTML form or by query string parameters to a form-backing bean. In order to do the binding, Spring MVC internally uses a special binding object called WebDataBinder (org.springframework.web.bind.WebDataBinder).

The WebDataBinder object extracts the data out of the HttpServletRequest object, converts it to a proper data format, loads it into a form-backing bean, and validates it. To customize the behavior of the data binding, we can initialize and configure the WebDataBinder object in our controller. The @InitBinder annotation (org.springframework.web.bind.annotation.InitBinder) helps us do this. The @InitBinder annotation designates a method to initialize WebDataBinder ...

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