如何将JObject复制到强类型对象中？

Question

for simplicity I made very simple structures.

Incoming JSON:

jsonInput = "{ 'FNAME': 'John'; 'LNAME': 'Doe', 'CITY': 'Vancuver'}";

I need to integrate with my strongly typed object of class Person:

class Person
{
    public string FNAME { get; set; }
    public string LNAME { get; set; }
    public string CITY { get; set; }
    public string COUNTRY { get; set; }
}

Person object gets created first (in real life from DB, but here I will just hard-code it):

var person = new Person { CITY = 'Toronto', COUNTRY = 'Canada'};

How to integrate (merge) jsonInput into person to have complete Person object. JSON data is supposed to override Person object only for matched properties

So, I de-serialize JSON jsonInput first into dynamic object

var obj = JsonConvert.DeserializeObject(jsonInput);

So, now I have partially populated obj object (that is of type JObject ) and partially populated person object (of type Person ).

How, in a single command I can merge them into person object. Or maybe there is another way to deserialize jsonInput directly into person ??

The result should be:

person.FNAME = 'John'
person.LNAME = 'Doe'
person.CITY = 'Vancuver'
person.COUNTRY = 'CANADA'

What I want to avoid is looping through properties. Thanks for any advice.

Answer 1

使用PopulateObject方法

JsonConvert.PopulateObject(jsonInput,person);

Answer 2

assuming you recive json as a parameter ...

jsonInput = "{ 
              'PERSON' : {
                         'FNAME': 'John'; 
                         'LNAME': 'Doe', 
                         'CITY': 'Vancuver'
                        } 
             }";
Public class Person{
     public Person(string json,string city,string country){
            JObject jObject = JObject.Parse(json);
            JToken jPerson = jObject["PERSON"];
            FNAME= (string) jPerson ["FNAME"];
            LNAME= (string) jPerson ["LNAME"];

            COUNTRY = country:
            CITY= ((string) jPerson ["CITY"] == string.Empty)?city:(string) jPerson ["CITY"]; //IF CITY PROPERTY EMPTY USE CITY ELSE USE JSON PROPERTY

         }  
           public string FNAME{ get; set; }
           public string LNAME{ get; set; }
           public string CITY{ get; set; }
           public string COUNTRY{ get; set; }         
}

not tested but hope that helps