java - 我们如何才能在 json 中隐含

Question

我们是否有任何注释可以替代 JSON 的 @xstreamImplicit，因为 XstreamImplicit 仅适用于 XML？

例如:

Class A {

  @XstreamImplicit
  private List<Apple> apples;
}

XML:

<apple>
  .....
  .....
</apple>
<apple>
   ....
   ....
</apple>

JSON:

{ apples: [{...}] }

我想要以下格式的所需 JSON 输出:

[{...}]

Answer 1

根据"Write to JSON with the self-contained JSON driver dropping the root" in the JSON tutorial ，你可以这样写:

XStream xstream = new XStream(new JsonHierarchicalStreamDriver() {
    public HierarchicalStreamWriter createWriter(Writer writer) {
        return new JsonWriter(writer, JsonWriter.DROP_ROOT_MODE);
    }
});