CustomCreationConverter是一个在序列化过程中提供自定方式去创建一个对象的Json转换器,一旦对象被创建,它将被序列化器填充值。
- public interface IPerson
- {
- string FirstName { get; set; }
- string LastName { get; set; }
- DateTime BirthDate { get; set; }
- void Set();
- }
- public class Employee : IPerson
- {
- public string FirstName { get; set; }
- public string LastName { get; set; }
- public DateTime BirthDate { get; set; }
- public string Department { get; set; }
- public string JobTitle { get; set; }
- public void Set()
- {
- }
- }
- public class PersonConverter : CustomCreationConverter<IPerson>
- {
- public override IPerson Create(Type objectType)
- {
- return new Employee();
- }
- }
- string json = @"[
- {
- ""FirstName"": ""Maurice"",""LastName"": ""Moss"",""BirthDate"": ""\/Date(252291661000)\/"",""Department"": ""IT"",""JobTitle"": ""Support""
- },{
- ""FirstName"": ""Jen"",""LastName"": ""Barber"",""BirthDate"": ""\/Date(258771661000)\/"",""JobTitle"": ""Manager""
- }
- ]";
- List<IPerson> people = JsonConvert.DeserializeObject<List<IPerson>>(json,new PersonConverter());
- IPerson person = people[0];
- Console.WriteLine(person.GetType());// CustomCreationConverterTest.Employee
- Console.WriteLine(person.FirstName);// Maurice
- Employee employee = (Employee)person;
- Console.WriteLine(employee.JobTitle);// Support
这是一个非常简单的例子。更复杂的场景可能包含一个对象工厂或者服务定位器(servicelocator)用来在运行时解析这个对象。