Question

我想声明并定义一个自己的对象数组，但是我遇到了以我期望的方式验证实例的问题。

我的$ref指向同一架构中的对象（此处指定的只能指向架构; Can JSON integer attributes be referenced?）

我已按照此链接获取指导; https://spacetelescope.github.io/understanding-json-schema/structuring.html

我在这里验证; http://json-schema-validator.herokuapp.com/

我想通过不允许feeder_tx数组中的其他类型的其他元素来使模式更严格，但似乎无法使语法正确。

这是架构：

{
    "id": "params-schema",
    "$schema": "http://json-schema.org/draft-04/schema#",
    "description": "my schema",

    "definitions": {

        "tx": {

            "type": "object",
            "properties": {

                "comment": {"type": "string"},

                "max_channels": {

                    "type": "integer",
                    "minimum" : 0,
                    "maximum" : 10000,
                    "additionalProperties": false
                }                
            },

            "additionalProperties": false,
            "required": ["max_channels"]
        }
    },

    "type": "object",
    "properties": {

        "feeder_tx": {

            "type": "array",
            "minItems": 1,
            "maxItems": 4,
            "items": {

                "type": "object",
                "properties": {

                    "comment": {"type": "string"},

                    "info": {

                        "$ref": "#/definitions/tx",
                        "additionalProperties": false
                    }
                }
            }
        }
    },

    "required": ["feeder_tx"]
}

这是实例：

{
    "feeder_tx": [

            {"lala": 25, "max_channels": 1499}
    ]
}

由于添加了lala，我想失败，但它会成功验证。

如果我在"additionalProperties": false的{{1}}部分末尾添加"properties"，则验证者会同时抱怨items和"lala"。

这是有道理的，因为下一级是"max_channels"

"info"

如果我尝试让实例引用[ { "level" : "error", "schema" : { "loadingURI" : "#", "pointer" : "/properties/feeder_tx/items" }, "instance" : { "pointer" : "/feeder_tx/0" }, "domain" : "validation", "keyword" : "additionalProperties", "message" : "object instance has properties which are not allowed by the schema: [\"lala\",\"max_channels\"]", "unwanted" : [ "lala", "max_channels" ] } ]，则会发生以下错误：

"info"

此实例数据：

[ {
  "level" : "fatal",
  "message" : "URI \"params-schema#\" is not absolute",
  "uri" : "params-schema#",
  "info" : "other messages follow (if any)"
} ]

事实上，我不明白为什么我需要一个{ "feeder_tx": [ {"info": { "max_channels": 1499}} ] }对象，因为我feeder_tx/items/info是一个对象。

所以我还原了实例数据并删除了这个对象。发生以下错误：

$ref

即架构和实例变为：

[ {
  "level" : "fatal",
  "message" : "URI \"params-schema#\" is not absolute",
  "uri" : "params-schema#",
  "info" : "other messages follow (if any)"
} ]

有人可以解释一下这里发生了什么，以及正确的方法吗？

重构架构以不使用"type": "object", "properties": { "feeder_tx": { "type": "array", "minItems": 1, "maxItems": 4, "items": { "$ref": "#/definitions/tx" } } },可以解决问题，但我想知道如何使用引用。

$ref

给出了正确的验证错误：

{
    "id": "params-schema",
    "$schema": "http://json-schema.org/draft-04/schema#",
    "description": "parameters schema",


    "type": "object",
    "properties": {

        "feeder_tx": {

            "type": "array",
            "minItems": 1,
            "maxItems": 4,
             "items": {

            "type": "object",
            "properties": {

                "comment": {"type": "string"},

                "max_channels": {

                    "type": "integer",
                    "minimum" : 0,
                    "maximum" : 10000,
                    "additionalProperties": false
                }                
            },

            "additionalProperties": false,
            "required": ["max_channels"]
            }
        }
    },

    "required": ["feeder_tx"]
}

感谢。

Answer 1

这有效：

{
  "id": "#",
  "$schema": "http://json-schema.org/draft-04/schema#",
  "description": "parameters schema",
  "definitions": {
    "item": {
      "type": "object",
      "properties": {
        "comment": {
          "type": "string"
        },
        "max_channels": {
          "type": "integer",
          "minimum": 0,
          "maximum": 10000,
          "additionalProperties": false
        }
      },
      "additionalProperties": false,
      "required": [
        "max_channels"
      ]
    }
  },
  "type": "object",
  "properties": {
    "feeder_tx": {
      "type": "array",
      "minItems": 1,
      "maxItems": 4,
      "items": {
        "$ref": "#/definitions/item"
      }
    }
  },
  "required": [
    "feeder_tx"
  ]
}

尝试使用：

如何从同一JSON文件中的数组中引用对象

1 个答案: