Json 如果模式和 json 文件的属性不同，模式不会失败

Question

正在使用https://www.jsonschemavalidator.net/

我有一个架构：

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://example.com/product.schema.json",
  "title": "Product",
  "description": "A product from Acmes catalog",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "first_name": {
      "type": "string"
    },
    "last_name": {
      "type": "string"
    },
    "birthday": {
      "type": "string",
      "format": "date-time"
    },
    "category": {
      "type": "string",
      "enum": [
        "Driver Qual",
        "Medical Info",
        "Personel",
        "Personnel",
        "Prev Emp Inquiry",
        "Drug-Alcohol"
      ]
    },
    "address": {
      "type": "object",
      "properties": {
        "street_address": {
          "type": "string"
        },
        "city": {
          "type": "string"
        },
        "state": {
          "type": "string"
        },
        "country": {
          "type": "string"
        }
      }
    }
  },
  "required": [
    "first_name",
    "last_name"
  ]
}

和一个 json 文件是：

{
  "first_name": "George",
  "last_name": "Washington",
  "birthday": "2018-11-13T20:20:39+00:00",
  "address": {
    "street_address": "3200 Mount Vernon Memorial Highway",
    "city": "Mount Vernon",
    "state": "Virginia",
    "country": "United States",
    "category": "Personel2"
  }
}

这通过了验证，但是如果我将 json 文件更改为：（即将类别位置移至生日下方）它失败了（正如我所期望的，Personel2 不在枚举列表中）

{
  "first_name": "George",
  "last_name": "Washington",
  "birthday": "2018-11-13T20:20:39+00:00",
  "category": "Personel2",
  "address": {
    "street_address": "3200 Mount Vernon Memorial Highway",
    "city": "Mount Vernon",
    "state": "Virginia",
    "country": "United States"
  }
}

为什么类别在文件末尾时不会失败？我认为属性的顺序无关紧要？

Answer 1

当您将类别移动到地址时，它会通过验证，因为对于编译器而言，此类别属性没有任何验证，它只是地址 [=] 的额外字符串属性 18=]。如果您也将类别添加到地址属性，则验证将失败，或者您可以将 "additionalProperties": false 添加到地址验证

"address": {
      "type": "object",
       "additionalProperties": false,

在这种情况下，向地址添加额外的类别属性会出现错误消息“属性 'category' 尚未定义，架构不允许其他属性”。

但是，当您将类别移动到根目录时，验证失败，因为根验证模式包含类别属性，它应该是一个枚举。

Json 如果模式和 json 文件的属性不同，模式不会失败

Json schema does not fail if properties of schema and json file are different

schema

json

json-schema-validator