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13.8. Exception Handling
13.8.1. Create an Exception Mapper
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Summary
Exception mappers are custom, application provided components that catch thrown exceptions and write specific HTTP responses.
Example 13.2. Exception Mapper
An exception mapper is a class that is annotated with the @Provider annotation, and implements the
ExceptionMapper interface.
An example exception mapper is shown below.
@Provider
public class EJBExceptionMapper implements ExceptionMapper<javax.ejb.EJBException>
{
Response toResponse(EJBException exception) {
return Response.status(500).build();
}
}
To register an exception mapper, list it in the
web.xml file under the resteasy.providers context-param, or register it programmatically through the ResteasyProviderFactory class.
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