jsonschema2pojo:引用相同类型的对象

jsonschema2pojo: referencing objects of the same type

我需要从 JSON 模式文件生成 Java classes 并遇到了 jsonschema2pojo。但是,我在使用 ref 关键字时遇到了 "problem"。

例如,如果我使用 http://spacetelescope.github.io/understanding-json-schema/structuring.html#extending 中的以下架构:

{
  "$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": { "$ref": "#/definitions/address" },
    "shipping_address": { "$ref": "#/definitions/address" }
  }
}

正如预期的那样,它生成了一个名为 class 的名称,包含一个属性 billingAddress 和一个属性 shippingAddress

但是,它还生成了两个单独的 classes BillingAddressShippingAddress,即使这两个属性都引用了 address。因此,我宁愿同时拥有 Address 类型的两个属性。

这可以用 jsonschema2pojo 实现吗?


更新

通过 here 更好地理解了 javaType 之后。通过在您的地址定义中添加一个 javaType,我得到了预期的结果。

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

  "definitions": {
      "address": {
      "type": "object",
      "javaType": "Address",
      "properties": {
        "street_address": { "type": "string" },
        "city":           { "type": "string" },
        "state":          { "type": "string" }
      },
      "required": ["street_address", "city", "state"]
    }
  },
  "type": "object",
  "properties": {
    "billing_address": { "$ref": "#/definitions/address" },
    "shipping_address": { "$ref": "#/definitions/address" }
  }
}

用两个文件回答

您需要在 Address.json 中使用 javaType 并在 billing_address 和运输中使用 $ref地址。我建议您将地址定义分离到一个单独的 json 中,然后在 billing_address 和 shipping_address.

中使用它

Address.json

{
    "$schema": "http://json-schema.org/draft-03/hyper-schema",
    "additionalProperties": false,
    "javaType": "whatever-package-name-you-have.Address"
    "type": "object",
    "properties": {
    "street_address": { "type": "string", "required":true},
    "city":           { "type": "string", "required":true },
    "state":          { "type": "string", "required":true }
  }
}

MainClass.json

{
    "$schema": "http://json-schema.org/draft-03/hyper-schema",
    "additionalProperties": false,
    "type": "object",
    "properties": {
     "billing_address": {
           "$ref":"Address.json",
           "type": "object",
           "required": false
          },
     "shipping_address": {
           "$ref":"Address.json",
           "type": "object",
           "required": false
          }
     }
}