JSON 架构：“allof”和“additionalProperties”

假设我们的模式遵循模式（来自教程here http://spacetelescope.github.io/understanding-json-schema/structuring.html#structuring):

{
  "$schema": "http://json-schema.org/draft-04/schema#",

  "definitions": {
    "address": {
      "type": "object",
      "properties": {
        "street_address": { "type": "string" },
        "city":           { "type": "string" },
        "state":          { "type": "string" }
      },
      "required": ["street_address", "city", "state"]
    }
  },

  "type": "object",

  "properties": {
    "billing_address": { "$ref": "#/definitions/address" },
    "shipping_address": {
      "allOf": [
        { "$ref": "#/definitions/address" },
        { "properties":
          { "type": { "enum": [ "residential", "business" ] } },
          "required": ["type"]
        }
      ]
    } 

  }
}

这是有效的实例：

{
      "shipping_address": {
        "street_address": "1600 Pennsylvania Avenue NW",
        "city": "Washington",
        "state": "DC",
        "type": "business"
      }
}

我需要确保任何其他字段shipping_address将无效。我知道为此目的而存在additionalProperties应设置为“false”。但是当我设置时"additionalProprties":false如下：

"shipping_address": {
          "allOf": [
            { "$ref": "#/definitions/address" },
            { "properties":
              { "type": { "enum": [ "residential", "business" ] } },
              "required": ["type"]
            }
          ],
          "additionalProperties":false
        } 

我收到验证错误（已检查here http://json-schema-validator.herokuapp.com/index.jsp):

[ {
  "level" : "error",
  "schema" : {
    "loadingURI" : "#",
    "pointer" : "/properties/shipping_address"
  },
  "instance" : {
    "pointer" : "/shipping_address"
  },
  "domain" : "validation",
  "keyword" : "additionalProperties",
  "message" : "additional properties are not allowed",
  "unwanted" : [ "city", "state", "street_address", "type" ]
} ] 

问题是：我应该如何限制字段shipping_address仅部分？提前致谢。

您现在可以使用规范来执行此操作2019-09 https://json-schema.org/draft/2019-09/json-schema-core.html#unevaluatedProperties with "unevaluatedProperties": false

{
  "$schema": "http://json-schema.org/2019-09/schema#",

  "definitions": {
    "address": {
      "type": "object",
      "properties": {
        "street_address": { "type": "string" },
        "city":           { "type": "string" },
        "state":          { "type": "string" }
      },
      "required": ["street_address", "city", "state"]
      // additionalProperties: false    // <-- Remove completely if present 
    }
  },

  "type": "object",

  "properties": {
    "billing_address": { "$ref": "#/definitions/address" },
    "shipping_address": {
      "unevaluatedProperties": false,   // <-- Add to same level as allOf as false
      "allOf": [
        { "$ref": "#/definitions/address" },
        { "properties":
          { "type": { "enum": [ "residential", "business" ] } },
          "required": ["type"]
        }
      ]
    } 
  }
}

作者给出了相当清晰简洁的解释here https://gist.github.com/handrews/6dfebd56ef97328f9e4dc7a47a1e8bc7?permalink_comment_id=2367396#gistcomment-2367396;