使用 Json.net 将 json 对象反序列化为 SQL DB

Question

我想使用 Json.net 将 json 对象反序列化为 SQL DB

Json 文件：

{
  "requirements": {
    "requirement": [
      {
        "Id": "req1",
        "desc": "description of requirement1"
      },
      {
        "Id": "req2",
        "desc": "description of requirement2",
      },
      {
        "desc": "description of requirement3",
        "Id": "req3"
      }
    ]
  }
}

这样 'Id' 属性的值应该放在 Requirement 表的 ID 列中，而 'desc' 属性的值应该放在 Requirement 表的 DESC 列中

    ID        DESC
    req1      description of requirement1                       
    req2      description of requirement2                       
    req3      description of requirement3       

Answer 1

您可以使用json2sharp 工具生成您的类并像这样使用反序列化对象。

    public class Requirement
    {
        public string Id { get; set; }
        public string desc { get; set; }
    }

    public class Requirements
    {
        public List<Requirement> requirement { get; set; }
    }

    public class RootObject
    {
        public Requirements requirements { get; set; }
    }


 var x =JsonConvert.DeserializeObject<RootObject>(json);

并使用OrderByDescending

x.requirements.requirement.OrderByDescending(d => d.Id);

Answer 2

        string json = "{\"requirements\": {\"requirement\": [{\"Id\": \"req1\",\"desc\": \"description of requirement1\"},{\"Id\": \"req2\",\"desc\":\"description of requirement2\",},{\"desc\": \"description of requirement3\",\"Id\": \"req3\"}]}}";

        //Deserialize using Json.Net
        var objectRequirement = JsonConvert.DeserializeObject<RootObject>(json);

        //Add it to your database
        foreach (var item in objectRequirement.requirements.requirement)
        {
            db.Requirement.Add(new Requirement { ID = item.Id, DESC = item.desc });
        }
        db.SaveChanges();

---

您可以使用http://json2csharp.com/ 创建您的课程：

    public class Requirement
    {
        public string Id { get; set; }
        public string desc { get; set; }
    }

    public class Requirements
    {
        public List<Requirement> requirement { get; set; }
    }

    public class RootObject
    {
        public Requirements requirements { get; set; }
    }