Ios 在swift中对动态键和动态对象使用Codable

我在服务调用返回的结构中嵌套了以下结构，但我无法对这部分进行编码/解码。我遇到的问题是customKey和customValue都是动态的。customValue可以是数组、字典或字典数组 比如说

{
    "status": "a string value",
    "id": "a string value",
    "property": {
        "customkey1": "customValue1",
        "customKey2": [{
            "InnerCustomKey": "InnerCustomValue"
        }, {
            "InnerCustomKey": "InnerCustomValue"
        }, {
            "InnerCustomKey": "InnerCustomValue"
        }],
        "customkey3": {
            "InnerCustomKey": "InnerCustomValue"
        }
    }
}

我尝试了var values:[String:String]之类的方法，但在另一个对象中失败了。 我遵循答案，但没有成功

extension KeyedDecodingContainerProtocol{

    func getValueFromAvailableKey(codingKeys:[CodingKey])-> Any?{
        for key in codingKeys{
            for keyPath in self.allKeys{
                if key.stringValue == keyPath.stringValue{
                    do{
                        if let value = try? self.decodeIfPresent([String].self, forKey:keyPath){
                            return value
                        }

                        if let value = try? self.decodeIfPresent([String:String].self, forKey:keyPath){
                            return value
                        }

                        if let value = try? self.decodeIfPresent([[String:String]].self, forKey:keyPath){
                            return value
                        }

                        if let value = try? self.decodeIfPresent(String.self, forKey:keyPath){
                            return value
                        }

                        return nil
                    }
                }
            }
        }
        return nil
    }
}

private struct CustomCodingKeys: CodingKey {
    var stringValue: String
    init?(stringValue: String) {
        self.stringValue = stringValue
    }
    var intValue: Int?
    init?(intValue: Int) {
        return nil
    }
}

struct CustomModel: Codable {
    var status:String?
    var id: String?
    var property: Property?


    init(from decoder: Decoder)  {
        do{
            let container = try decoder.container(keyedBy: CustomCodingKeys.self)
            status = try container.decodeIfPresent(String.self, forKey: CustomCodingKeys.init(stringValue: "status")!)
            id = try container.decodeIfPresent(String.self, forKey: CustomCodingKeys.init(stringValue: "id")!)
            property = try container.decodeIfPresent(Property.self, forKey: CustomCodingKeys.init(stringValue: "property")!)


        }catch{
            print(error.localizedDescription)
        }
    }

    func encode(to encoder: Encoder) throws {
             var container = encoder.container(keyedBy: CustomCodingKeys.self)
             try? container.encodeIfPresent(self.status, forKey: CustomCodingKeys.init(stringValue: "status")!)
             try? container.encodeIfPresent(self.id, forKey: CustomCodingKeys.init(stringValue: "id")!)
             try? container.encodeIfPresent(self.property, forKey: CustomCodingKeys.init(stringValue: "property")!)
    }
}

// MARK: - Property
struct Property: Codable {
    var customkey:[String:Any?] = [:]

    init(from decoder: Decoder)  {
        do{
            let container = try decoder.container(keyedBy: CustomCodingKeys.self)
            for key in container.allKeys{
                customkey[key.stringValue] = container.getValueFromAvailableKey(codingKeys: [CustomCodingKeys.init(stringValue: key.stringValue)!])
            }

        }catch{
            print(error.localizedDescription)
        }
    }

    func encode(to encoder: Encoder) throws {
        var container = encoder.container(keyedBy: CustomCodingKeys.self)
        for key in customkey{
                 try? container.encodeIfPresent(customkey[key.key] as? String, forKey: CustomCodingKeys.init(stringValue: key.key)!)
                 try? container.encodeIfPresent(customkey[key.key] as? [[String:String]], forKey: CustomCodingKeys.init(stringValue: key.key)!)
                 try? container.encodeIfPresent(customkey[key.key] as? [String:String], forKey: CustomCodingKeys.init(stringValue: key.key)!)
            }

    }
}

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希望这对你有帮助

customValue

[reasonal]选项是否有限？是否所有可能的变量（字符串、数组、字典、字典数组）都是字符串类型的最里面的值？@user28434 customValue有任何值（字符串、数组、字典、字典数组等）您的示例代码很适合解码，但没有编码功能。您是否也可以添加编码代码？您希望如何编码？？？你想对同一个json编码吗？是的，我首先对你的样本完成的json字符串进行解码，然后添加一些数据，然后将这些数据编码为json。为此，我必须将财产的扩展作为encode@Mahesh我也重新编辑了编码的答案，