jsonschema2pojo：引用相同类型的对象

Question

我需要从 JSON 模式文件生成 Java 类，并遇到了 jsonschema2pojo。然而，我在使用关键字时遇到了“问题” ref。

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，它生成了一个类，无论您想如何称呼它，都可以命名它，其中包含一个 attributebillingAddress和一个 attribute shippingAddress。

然而，它还生成了两个单独的类BillingAddress，ShippingAddress即使这两个属性都引用address. 因此，我宁愿同时拥有 type 的两个属性Address。

这可以用 jsonschema2pojo 实现吗？

Answer 1

更新

从这里对javaType有了更好的了解之后。我只需在地址定义中添加 javaType 即可获得预期结果。

{
  "$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并使用$ref作为您的 billing_address 和送货地址。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。

地址.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
          }
     }
}