ObjectMapper如何注册SubtypeResolver

Question

我想用代码替换注解配置，这是我的代码

 ObjectMapper mapper = new ObjectMapper();
        mapper.setDefaultTyping(type);
        mapper.getSubtypeResolver().registerSubtypes(new NamedType(Node.class, "Node"));
        mapper.getSubtypeResolver().registerSubtypes(new NamedType(SubNode.class, "SubNode"));
        mapper.getSubtypeResolver().registerSubtypes(new NamedType(Attr.class, "Attr"));
        mapper.getSubtypeResolver().registerSubtypes(new NamedType(SubAttr.class, "SubAttr"));

我知道

@JsonSubTypes({ @JsonSubTypes.Type(value = SubNode.class, name = "SubNode")})

，这是工作，但我没有使用它，我想使用代码来配置它