ExceptionHandler returning JSON or XML not working in spring mvc 3

Question

code is like this:

   @Controller
    public class TestController {

        @RequestMapping(value = \"/testerror\", method = RequestMethod.GET)
        pub         


        

Answer 1

Seems like a known Spring bug (Fixed in 3.1 M1)

https://jira.springsource.org/browse/SPR-6902

Answer 2

It appears that AnnotationMethodHandlerExceptionResolver has its own array of HttpMessageConverters. You need to configure it to use the same array as used by AnnotationMethodHandlerAdapter.

However, it can be complicated when AnnotationMethodHandlerAdapter is declared implicitly. Perhaps declaring the following FactoryBean may help in all cases:

public class AnnotationMethodHandlerExceptionResolverFactoryBean
        implements FactoryBean<AnnotationMethodHandlerExceptionResolver> {
    @Autowired
    private AnnotationMethodHandlerAdapter a;

    public AnnotationMethodHandlerExceptionResolver getObject()
            throws Exception {
        AnnotationMethodHandlerExceptionResolver r = new AnnotationMethodHandlerExceptionResolver();
        r.setMessageConverters(a.getMessageConverters());
        return r;
    }

    ...
}