jersey与jackson格式转化的时候null不输出

重写JacksonFeature，并加入设置。
具体代码

public boolean configure(FeatureContext context) {
        Configuration config = context.getConfiguration();
        String jsonFeature = (String)CommonProperties.getValue(config.getProperties(), config.getRuntimeType(), "jersey.config.jsonFeature", JSON_FEATURE, String.class);
        if(!JSON_FEATURE.equalsIgnoreCase(jsonFeature)) {
            return false;
        } else {
            context.property(PropertiesHelper.getPropertyNameForRuntime("jersey.config.jsonFeature", config.getRuntimeType()), JSON_FEATURE);
            if(!config.isRegistered(JacksonJaxbJsonProvider.class)) {
                context.register(JsonParseExceptionMapper.class);
                context.register(JsonMappingExceptionMapper.class);

                JacksonJaxbJsonProvider jacksonJaxbJsonProvider = new JacksonJaxbJsonProvider();
                ObjectMapper objectMapper = new ObjectMapper();
                objectMapper.setSerializationInclusion(JsonInclude.Include.NON_EMPTY);
                jacksonJaxbJsonProvider.setMapper(objectMapper);
                context.register(jacksonJaxbJsonProvider, new Class[]{MessageBodyReader.class, MessageBodyWriter.class});
            }

            return true;
        }
    }