Question

我一直在使用codehaus和以下代码在序列化时从JSON中排除字段。

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fastxml并更改了代码，如下所示，

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，上面的代码没有按预期工作。它根本不尊重ignoreFieldNames，只返回对象中的所有字段（不排除“ignoreFieldNames”（String数组）中提到的字段。

非常感谢任何帮助。

提前致谢。

Answer 1

您需要使用过滤器注释您的bean

@JsonFilter("PropertyFilter")
public class ClassImSerializing

或者如果您不能，可以将其添加为注释中的全局混合

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

@JsonFilter("PropertyFilter")
class PropertyFilterMixIn {

}

Fasterxml ObjectMapper不会从JSON

1 个答案: