[QUESTION]怎么自定义JSONReader.Feature

[wangbiao5901]

public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
FastJsonConfig fastJsonConfig = new FastJsonConfig();
fastJsonConfig.setWriterFeatures(
JSONWriter.Feature.WriteLongAsString
);
fastJsonConfig.setReaderFeatures(
JSONReader.Feature.IgnoreSetNullValue,
JSONReader.Feature.TrimString,
JSONReader.Feature.IgnoreNullPropertyValue,
JSONReader.Feature.IgnoreNoneSerializable,
JSONReader.Feature.NullOnError
);
FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
fastConverter.setFastJsonConfig(fastJsonConfig);
fastConverter.setSupportedMediaTypes(Collections.singletonList(MediaType.APPLICATION_JSON));
converters.add(0, fastConverter);
}
需要一个ReaderFeature， 值为空字符串("")时，也不进行Set操作，忽略该属性，应该怎么添加。
PropertyFilter ignoreEmpty = (object, name, value) -> !"".equals(value);
fastJsonConfig.setReaderFilters(ignoreEmpty);
这种方法不生效

[wangbiao5901]

环境 JDK1.8
版本 2.0.47
输入{"a":""} 期望结果 a:null

[wenshao]

https://oss.sonatype.org/content/repositories/snapshots/com/alibaba/fastjson2/fastjson2/2.0.48-SNAPSHOT/
新增加了Feature.EmptyStringAsNull，请帮忙用2.0.48-SNAPSHOT版本帮忙验证，2.0.48版本预计在3月底前发布。

[wenshao]

https://github.com/alibaba/fastjson2/releases/tag/2.0.48
请用新版本