quarkus-resteasy-jackson映射时未知字段时的自定义消息

Question

我想为无法识别的字段和其他带有请求正文的错误设置自定义错误消息。我试过ExceptionMapper，但它不起作用：/使用Quarkus和杰克逊

public class ReqDTO {
    private String a;
}

发送请求时：

{
    "a": "a"
}

看起来不错。但发送时：

{
    "a": "a",
    "b": "b"
}

Unrecognized field "b"; (class ReqDTO), not marked as ignorable

@Provider
public class ExHandler implements ExceptionMapper<JsonMappingException>{

    public Respone toResponse(JsonMappingException e) { 
        //response bad field impl
    }
}

@Path("/")
public class Controller {
    @Post
    @Consume(APPLICATION_JSON)
    @Produces(TEXT_PLAIN)
    public Response getA(@Valid ReqDTO reqDTO){
        //logic
    }
}

找到类似DeserializationProblemHandler的内容，但不知道如何更改handleUnknownProperty：/的消息

Answer 1

@Singleton
RegisterCustomModuleCustomizer implements ObjectMapperCustomizer {

    public void customize(ObjectMapper mapper){
        mapper.addHandler(new DeserializationProblemHandler(){
            @SneakyThrows
            @Override
            public boolean handleUnknownProperty(...... params){
                throw new ApplicationException("ERRO_BODY_MESS");
            }
        }
    }
}

@Provider
public class ExHandler implements ExceptionMapper<ApplicationException>{

    public Respone toResponse(ApplicationException ex) { 
        return Response.status(BAD_REQUEST).entity(ex.getMessage()).build();
    }
}