杰克逊仍然抱怨缺少过滤器 ID / 跳过丢失的过滤器

Question

我有一个像这样的 ObjectMapper:

ObjectMapper mapper = new ObjectMapper();

// ignore missing filters
mapper.setFilters(new SimpleFilterProvider().setFailOnUnknownId(false));

// add module for meta data permissions
SimpleModule module = new SimpleModule("IncludeMetaData", new Version(0, 1, 0, "alpha"));
module.addSerializer(MetaClass.class, new MetaDataSerializer(permissions, p instanceof AbstractBean ? ((AbstractBean) p).isOwner() : false));
mapper.registerModule(module);

return mapper.writerWithView(Views.Admin.class).writeValueAsString(p)

但是当我序列化 jackson 时仍然抱怨缺少过滤器 ID 并且失败了。我如何为特定的映射器重新添加缺少的过滤器？

Answer 1

信不信由你，你必须在模块之后设置过滤器

ObjectMapper mapper = new ObjectMapper();

// add module for meta data permissions
SimpleModule module = new SimpleModule("IncludeMetaData", new Version(0, 1, 0, "alpha"));
module.addSerializer(MetaClass.class, new MetaDataSerializer(permissions, p instanceof AbstractBean ? ((AbstractBean) p).isOwner() : false));
mapper.registerModule(module);

// ignore missing filters
mapper.setFilters(new SimpleFilterProvider().setFailOnUnknownId(false));

return mapper.writerWithView(Views.Admin.class).writeValueAsString(p)

杰克逊仍然抱怨缺少过滤器 ID / 跳过丢失的过滤器

Jackson still complains about missing filter id / skip missing filters

java

json

jackson