Support for polymorphic return display.

[jackmiking]

A parent class may have multiple subclasses as a return type, and based on the value of a field, different subclasses will be returned.
一个父类返回可能会有多种子类，根据一个字段值，对应不同的子类

[abing22333]

Smart-Doc scans static code and does not have the ability to dynamically obtain field values.
smart-doc扫描的是静态代码，没有动态获取字段值的能力。

[jackmiking]

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[shalousun]

Smart-Doc scans static code and does not have the ability to dynamically obtain field values.
smart-doc扫描的是静态代码，没有动态获取字段值的能力。

Swagger should also not be able to support it.
swagger应该也不能支持

[jackmiking]

Swagger has the logic of oneOf, and the subclasses themselves are static.
swagger是有oneOf的逻辑得， 子类本身是静态的，

[jackmiking]

类似这样

[jackmiking]

Jackson also has the @JsonSubTypes annotation that can be declared on a parent class. The logic is almost the same; it checks if the current class has the @JsonSubTypes annotation, reads the list of @JsonSubTypes.Type from it, and converts the list into a structure similar to oneOf?
jackson也会有注解声明 @JsonSubTypes 在这个父类上面。逻辑差不多是判断当前类注解上有@JsonSubTypes 读取@JsonSubTypes上的@JsonSubTypes.Type列表，得到列表转换成oneOf类似的结构？

[shalousun]

Jackson also has the @JsonSubTypes annotation that can be declared on a parent class. The logic is almost the same; it checks if the current class has the @JsonSubTypes annotation, reads the list of @JsonSubTypes.Type from it, and converts the list into a structure similar to oneOf?
jackson也会有注解声明 @JsonSubTypes 在这个父类上面。逻辑差不多是判断当前类注解上有@JsonSubTypes 读取@JsonSubTypes上的@JsonSubTypes.Type列表，得到列表转换成oneOf类似的结构？

We'll take a look later, but it might be difficult to support this in the short term. The implementation should not be difficult, but the existing data structure needs optimization to support this feature.
后面我们看下，不过这个短期可能支持有困难，实现应该不难，主要现有数据结构支持这个问题

[shaunhurryup]

Is it possible to define multiple return values in a Controller? In many business cases, such as when an ID doesn't exist in the database, the server should respond with HTTP Status 200 and an error code like 10001

Success

HTTP Status 200

{
  "code": 0,
  "data": {
    "type": "electronics",
    "id": "65669ce3c684f6144ce5cf5f",
    "name": "iPhone 15 Pro Max"
  },
  "msg": "success",
  "msg_cn": ""
}

Fail

HTTP Status 200

{
    "msg": "Record Not Found",
    "code": 10001,
    "msg_cn": "未找到记录"
}

[jackmiking]

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