Question

我有一个WebApi返回以下JSON，我试图反序列化到下面的对象

JSON OBJECT

{
    "results": [{
            "id": 123456,
            "fullName": "Foo Bar",
            "localName": null,
            "jobPosition": "ME",
            "jobCompanyName": "EXTRA",
            "jobLocationCountry": "United States of America",
            "jobLocationCity": "San Francisco",
            "jobCountrySubdivision": "California",
            "boards": [],
            "restrictionsIndicator": false,
            "personRestriction": null,
            "jobRestriction": null
        }, {
            "id": 789101,
            "fullName": "Foo Bar",
            "localName": null,
            "jobPosition": null,
            "jobCompanyName": "Unknown",
            "jobLocationCountry": "Unknown",
            "jobLocationCity": "Unknown",
            "jobCountrySubdivision": "Unknown",
            "boards": [{
                    "companyId": 667525,
                    "companyName": "FOO BAR COMPANY",
                    "companyOffLimits": null,
                    "restrictionCategoryId": null
                }
            ],
            "restrictionsIndicator": false,
            "personRestriction": null,
            "jobRestriction": null
        }
    ],
    "totalCount": 2,
    "pageNumber": 1,
    "resultsPerPage": 100
}

C＃Classes

public class Rootobject
{
    public Result[] results { get; set; }
    public int totalCount { get; set; }
    public int pageNumber { get; set; }
    public int resultsPerPage { get; set; }
}

public class Result
{
    public int id { get; set; }
    public string fullName { get; set; }
    public object localName { get; set; }
    public string jobPosition { get; set; }
    public string jobCompanyName { get; set; }
    public string jobLocationCountry { get; set; }
    public string jobLocationCity { get; set; }
    public string jobCountrySubdivision { get; set; }
    public Board[] boards { get; set; }
    public bool restrictionsIndicator { get; set; }
    public int? personRestriction { get; set; }
    public int? jobRestriction { get; set; }
}

public class Board
{
    public int companyId { get; set; }
    public string companyName { get; set; }
    public int? companyOffLimits { get; set; }
    public object restrictionCategoryId { get; set; }
}

DLL是一个可移植类库，它是.NET 4.5，我通过nuget安装了JSON.net（10.0.1），但是可移植库连接到mac上的xamarin IOS项目。

如果被反序列化的JSON没有Boards，它可以正常运行但是如果有Board则会收到以下消息。

Unable to find a constructor to use for type Board. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'results[1].boards[0].companyId'

我正在使用的设置是：

var settings = new Newtonsoft.Json.JsonSerializerSettings
{
    NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore,
    ContractResolver = new Newtonsoft.Json.Serialization.CamelCasePropertyNamesContractResolver(),

};

我尝试了以下方法将其序列化：

var obj = Newtonsoft.Json.JsonConvert.DeserializeObject<Rootobject>(_jsonString, settings);
var jobject = Newtonsoft.Json.JsonConvert.DeserializeAnonymousType(_jsonString, new Rootobject());

我试过以下

输入默认构造函数
在构造函数中为类的所有参数命名
将属性添加到构造函数
将电路板更改为列表
取出Boards Property

但仍然没有快乐。它不会为我反序列化。

Answer 1

我认为你必须修改这个

public class Board
{
    public int companyId { get; set; }
    public string companyName { get; set; }
    public int? companyOffLimits { get; set; }
    public object restrictionCategoryId { get; set; }

    **public Board(){}**
}

也在其他班级

或者也改变

public Board[] boards { get; set; }

到

public List<Board> boards { get; set; }

...试

对象的反序列化数组

1 个答案: