将json结果转换为dart模型 [英] converting json result to dart model
问题描述
我正在使用一些通用类型在API上使用，这些API返回的数据低于json结果
I am using some generic type to use on API that return data which json result is below
{
"apiResult": {
"dataResult": {
"accessToken": "access_token_string",
"refreshToken": "refresh_token_string"
},
"dataIsSuccess": true,
"dataError": "Service name : LoginService - No error",
"dataCustomError": "Service name : LoginService - No custom error",
"dataReturnCode": 200,
"dataCount": null
},
"apiException": "NO_ERROR_FROM_API",
"apiCustomException": "Method name : ApplicationUserLoginAsync",
"apiReturnCode": 200,
"apiIsSuccess": true
}
dataResult 是我的数据库结果模型，是通用类型(可以是令牌响应模型或产品列表).因此，我需要将此json模型转换为DART类.我已经尝试了一些代码，但是无法按我的意愿做
dataResult is my database result model which is a generic type (it can be a token response model or list of product). So I need to convert this json model to DART class. I have tried some code but could not to do it as I wanted
请需要帮助.
编辑
我尝试了一些在线工具来生成dart类代码，但是我遇到的问题是 dataResult 属性是如下所示的通用属性
I have tried some online tool to generate dart class code but the problem I had is that dataResult property is a generic property as below
public class DataReturn<T>
{
public T DataResult { get; set; }
public bool DataIsSuccess { get; set; }
public string DataError { get; set; }
public string DataCustomError { get; set; }
public int DataReturnCode { get; set; }
public long? DataCount { get; set; }
}
因此，我在上面添加的json对象是对DataReturn类的通用TokenResponseModel的实现.
So the json object that I added above is a implementation of generic TokenResponseModel to DataReturn class.
所以我需要一个解决方案.
So I need a solution to this.
编辑2
添加有关我的问题的一些信息.首先在后端，我使用的是Net Core Web API.
adding some information about my question. first at the backend I am using net core web api.
Web api响应方法(如果结果正确)使用下面的通用 OkObjectResult
web api response method (if result is ok) uses below generic OkObjectResult
public class BaseControllerReturn<T>
public OkObjectResult Ok(T t, string methodFullName)
{
ApiReturn<T> apiReturn = new ApiReturn<T>
{
ApiResult = t,
ApiException = "NO_ERROR_FROM_API",
ApiCustomException = $"Method name : {methodFullName}",
ApiReturnCode = (int)ApiMessageType.CAM200,
ApiIsSuccess = true
};
return new OkObjectResult(apiReturn);
}
}
和 ApiResult 类是
public class ApiReturn<T> : IApiReturn<T>
{
public T ApiResult { get; set; }
public string ApiException { get; set; }
public string ApiCustomException { get; set; }
public int ApiReturnCode { get; set; }
public bool ApiIsSuccess { get; set; }
}
Web Api控制器操作方法返回如下
Web Api controller action method return as below
IDataReturn<ICollection<SomeEntity>> dataReturn;
var controllerReturn = new BaseControllerReturn<IDataReturn<ICollection<SomeEntity>>>();
....
....
....
return controllerReturn.Ok(dataReturn, ControllerName + " - " + MethodFullName);
DataReturn 类，您可以在上方看到它.
DataReturn class you can see it above.
因此，Web Api方法在DataReturn泛型类内返回数据库结果，而Api方法在ApiResult内返回DataReturn对象，并且我具有如下的Api Return对象
So Web Api methods return DB result inside the DataReturn generic class and Api methods return DataReturn object inside the ApiResult and I have Api Return object as below
ApiReturn< DataReturn>可以看到如下
ApiReturn<DataReturn> which can be seen as below
{
"apiResult": {
"dataResult": {
"accessToken": "access_token_string",
"refreshToken": "refresh_token_string"
},
"dataIsSuccess": true,
"dataError": "Service name : LoginService - No error",
"dataCustomError": "Service name : LoginService - No custom error",
"dataReturnCode": 200,
"dataCount": null
},
"apiException": "NO_ERROR_FROM_API",
"apiCustomException": "Method name : ApplicationUserLoginAsync",
"apiReturnCode": 200,
"apiIsSuccess": true
}
在此示例中，SomeEntity是
In this example SomeEntity is
public class TokenResponseModel
{
public string AccessToken { get; set; }
public string RefreshToken { get; set; }
}
所以我希望这些信息足以澄清问题.
So I hope these information is enough to clarify the question.
使用相同的ApiResult和DataResult泛型类的Web API的另一个响应.
another response from web api that use same ApiResult and DataResult generic class.
{
"apiResult": {
"dataResult": [
{
"stockDetailId": "ac9d6aac-3b0e-42f7-ba87-85cf6647cde9",
"stockDetail": {
"stockId": "8802d1e0-b044-4986-9e44-74f68fe2068e",
"secondCurrency": 0,
"thirdCurrency": 0,
"retailVatType": 4,
"ecommerce": false,
"description": null,
"id": "ac9d6aac-3b0e-42f7-ba87-85cf6647cde9",
"isActive": true,
"createdUser": "ed086e08-fbdf-4974-d566-08d7cb0d5a98",
"createdDate": "2020-07-25T14:15:42.0056828",
"updatedUser": "ed086e08-fbdf-4974-d566-08d7cb0d5a98",
"updatedDate": "2020-07-25T14:15:42.0056828"
},
"vendorId": null,
"vendor": null,
"manufacturerId": null,
"manufacturer": null,
"priceListId": null,
"priceList": null,
"discountMatrixId": null,
"discountMatrix": null,
"stockEcommerceId": null,
"stockEcommerce": null,
"stockOpenCarts": null,
"stockUnits": null,
"stockBarcodes": null,
"stockGroups": null,
"stockCategories": null,
"stockFiles": null,
"accountMatchings": null,
"code": "334472",
"name": "YETIS MATIK DAG ESINTISI 2500GR*6",
"currencyType": 1,
"vatType": 4,
"sellingPrice": null,
"id": "8802d1e0-b044-4986-9e44-74f68fe2068e",
"isActive": true,
"createdUser": "ed086e08-fbdf-4974-d566-08d7cb0d5a98",
"createdDate": "2020-07-25T14:15:42.0056828",
"updatedUser": "ed086e08-fbdf-4974-d566-08d7cb0d5a98",
"updatedDate": "2020-07-25T14:15:42.0056828"
}
],
"dataIsSuccess": true,
"dataError": "Service name : StockService - No error",
"dataCustomError": "Service name : StockService - No custom error",
"dataReturnCode": 200,
"dataCount": 1
},
"apiException": "NO_ERROR_FROM_API",
"apiCustomException": "Method name : StocksController - ListAsync",
"apiReturnCode": 200,
"apiIsSuccess": true
}
推荐答案
您可以使用 quicktype.io 之类的工具来将json转换为dart类.
You can use tool like quicktype.io to convert json to dart class.
// To parse this JSON data, do
//
// final generalPublicLoginResponse = generalPublicLoginResponseFromJson(jsonString);
import 'dart:convert';
GeneralPublicLoginResponse generalPublicLoginResponseFromJson(String str) => GeneralPublicLoginResponse.fromJson(json.decode(str));
String generalPublicLoginResponseToJson(GeneralPublicLoginResponse data) => json.encode(data.toJson());
class GeneralPublicLoginResponse {
GeneralPublicLoginResponse({
this.apiResult,
this.apiException,
this.apiCustomException,
this.apiReturnCode,
this.apiIsSuccess,
});
ApiResult apiResult;
String apiException;
String apiCustomException;
int apiReturnCode;
bool apiIsSuccess;
factory GeneralPublicLoginResponse.fromJson(Map<String, dynamic> json) => GeneralPublicLoginResponse(
apiResult: ApiResult.fromJson(json["apiResult"]),
apiException: json["apiException"],
apiCustomException: json["apiCustomException"],
apiReturnCode: json["apiReturnCode"],
apiIsSuccess: json["apiIsSuccess"],
);
Map<String, dynamic> toJson() => {
"apiResult": apiResult.toJson(),
"apiException": apiException,
"apiCustomException": apiCustomException,
"apiReturnCode": apiReturnCode,
"apiIsSuccess": apiIsSuccess,
};
}
class ApiResult {
ApiResult({
this.dataResult,
this.dataIsSuccess,
this.dataError,
this.dataCustomError,
this.dataReturnCode,
this.dataCount,
});
DataResult dataResult;
bool dataIsSuccess;
String dataError;
String dataCustomError;
int dataReturnCode;
dynamic dataCount;
factory ApiResult.fromJson(Map<String, dynamic> json) => ApiResult(
dataResult: DataResult.fromJson(json["dataResult"]),
dataIsSuccess: json["dataIsSuccess"],
dataError: json["dataError"],
dataCustomError: json["dataCustomError"],
dataReturnCode: json["dataReturnCode"],
dataCount: json["dataCount"],
);
Map<String, dynamic> toJson() => {
"dataResult": dataResult.toJson(),
"dataIsSuccess": dataIsSuccess,
"dataError": dataError,
"dataCustomError": dataCustomError,
"dataReturnCode": dataReturnCode,
"dataCount": dataCount,
};
}
class DataResult {
DataResult({
this.accessToken,
this.refreshToken,
});
String accessToken;
String refreshToken;
factory DataResult.fromJson(Map<String, dynamic> json) => DataResult(
accessToken: json["accessToken"],
refreshToken: json["refreshToken"],
);
Map<String, dynamic> toJson() => {
"accessToken": accessToken,
"refreshToken": refreshToken,
};
}
这篇关于将json结果转换为dart模型的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
