Data Binding Error Handling in Spring MVC

[santhosh666]

Have a question on the data Binding in Spring MVC.

I have a Controller which accepts a JSON request in the form of @RequestBody.. I have all the JSR 303 Validations in place and it works like a charm.

JSON Request

public class TestJSONRequest{

@Size(min=10,message="{invalid.demo.size}")
String demo;

int code;
}
Controller

@Controller
@RequestMapping("/test")
public class TestController {

public void testEntry(@RequestBody TestJSONRequest jsonRequest,ModelMap map)

Set<ConstraintViolation<TestJSONRequest>> violationList = validator.val(jsonRequest);
....
....
TestJSONResponse response = // Do complex Logic.
modelMap.addattribute("TestJSONResponse",response) ;
}
But JSR 303 valiadtions kick in once the incoming json data is binded to the Request Object.

In case if I send "ab" in the code field of the input JSON requsest, binding would itself fail.

How do I handle that?

I want to catch those data binding errors and do some kind of generalized error handling in my controller.

Could you please help me out on this?

P.S - I am using Spring 3.0

Thanks,
Santhosh

[santhosh666]

Can somebody help me out with this ? I am stuck with this for 2 days now... It would be great if somebody can provide a clear solution to this prob ?

Thanks,
Santhosh