Fasterxml ObjectMapper不会从JSON中排除文件

Question

我使用codehaus已有一段时间，下面的代码在序列化相同字段时将其从JSON中排除。

ObjectMapper mapper = new ObjectMapper();
mapper.getSerializationConfig().addMixInAnnotations(Object.class, PropertyFilterMixIn.class);

SimpleBeanPropertyFilter propertyFilter = SimpleBeanPropertyFilter.serializeAllExcept(ignoreFieldNames);
FilterProvider simpleFilterProvider = new    SimpleFilterProvider().addFilter("PropertyFilter", propertyFilter);

ObjectWriter writer = mapper.writer(simpleFilterProvider);
String jsonContent = writer.writeValueAsString(obj);

我升级到了fastxml，并如下更改了代码，

ObjectMapper mapper = new ObjectMapper();
mapper.addMixIn(Object.class, PropertyFilterMixIn.class);

SimpleBeanPropertyFilter propertyFilter = SimpleBeanPropertyFilter.serializeAllExcept(ignoreFieldNames);
FilterProvider simpleFilterProvider = new SimpleFilterProvider().addFilter("PropertyFilter", propertyFilter);
//mapper.getSerializationConfig().withFilters(simpleFilterProvider);

ObjectWriter writer = mapper.writer(simpleFilterProvider);
String jsonContent = writer.writeValueAsString(obj);

但是，上面的代码无法正常工作。 它根本不尊重ignoreFieldNames，只是返回对象中的所有字段（不排除“ ignoreFieldNames”（字符串数组）中提到的字段。

任何帮助将不胜感激。

提前致谢。

Answer 1

您需要使用过滤器注释bean

@JsonFilter("PropertyFilter")
public class ClassImSerializing

否则，您可以将其作为全局混合添加到注释中

ObjectMapper mapper = new ObjectMapper();
mapper.addMixIn(Object.class, PropertyFilterMixIn.class);

@JsonFilter("PropertyFilter")
class PropertyFilterMixIn {

}