Question

尝试使用OpenApi 3.0.2实现多态。

Type1:
  type: object
  required:
  - dn
  - typeOfType
  properties:
    dn:
      description: Description
      type: string
    typeOfType:
      type: string
      enum:
        - Type2
        - Type3
  discriminator:
    propertyName: typeOfType
Type2:
  allOf:
  - $ref: '#/components/schemas/Type1'
  - type: object
    properties:
      name:
        $ref: '#/components/schemas/name' #abstract object
    required:
    - name
Type3:
  allOf:
  - $ref: '#/components/schemas/Type1'
  - type: object
    properties:
      surname:
        $ref: '#/components/schemas/surname' #abstract object
    required:
    - surname

我生成的代码如下：

@Validated
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "Discriminator{propertyName&#x3D;&#39;typeOfType&#39;, mapping&#x3D;null}", visible = true )
@JsonSubTypes({
@JsonSubTypes.Type(value = WniosekEkwU1.class, name = "Type1"),
@JsonSubTypes.Type(value = WniosekEkwU1A.class, name = "Type2"),
})
public class Type1  implements Serializable {
private static final long serialVersionUID = 1L;
...
}

总结起来，多态性是行不通的。我想知道我的生成器在创建property = "Discriminator{propertyName='typeOfType', mapping=null}"时是否工作正常。我找不到生成类似代码的任何示例。当我用property = "typeOfType"替换此代码时，一切正常。

我的代码是否错误或需要更多配置？

我还有端点来测试此类。我收到错误：

Resolved exception caused by handler execution:  org.springframework.http.converter.HttpMessageNotReadableException: 
JSON parse error: Missing type id when trying to resolve subtype of [simple type, class pl.asdf.asdf.asdf.gen.model.type1]: missing type id property 
'Discriminator{propertyName&#x3D;&#39;typeOfType&#39;, mapping&#x3D;null}' (for POJO property 'type1'); nested exception is com.fasterxml.jackson.databind.exc.InvalidTypeIdException: 
Missing type id when trying to resolve subtype of [simple type, class pl.asdf.asdf.asdf.gen.model.Type1]: 
missing type id property 'Discriminator{propertyName&#x3D;&#39;typeOfType&#39;, mapping&#x3D;null}' (for POJO property 'type1')

当我编辑上述属性时，我没有收到此错误。我想它已连接。有什么解决办法吗？

Answer 1

此错误已在当前的3.0.5-SNAPSHOT中修复： https://github.com/swagger-api/swagger-codegen-generators/issues/291

我的代码示例中唯一要提及的是删除属性typeOfType的枚举定义

这应该足够了：

Type1:
  type: object
  discriminator:
    propertyName: typeOfType
  required:
  - dn
  - typeOfType
  properties:
    dn:
      description: Description
      type: string
    typeOfType:
      type: string

OpenApi 3.0.2多态性的判别器

1 个答案: