c# – 返回同一对象的类中的泛型方法
发布时间：2020-12-16 01:27:18 所属栏目：百科 来源：网络整理
导读：我有一个类,我想为该类添加一个泛型方法,每次调用时都返回一个相同的对象.但方法参数可以是不同的对象.无论参数是什么,但方法应始终返回相同的对象类型. 创建此方法的目的是我想调用一个API,我需要将JSon序列化对象发送给它.每次我调用API时,它都会在他们的
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我有一个类,我想为该类添加一个泛型方法,每次调用时都返回一个相同的对象.但方法参数可以是不同的对象.无论参数是什么,但方法应始终返回相同的对象类型.
创建此方法的目的是我想调用一个API,我需要将JSon序列化对象发送给它.每次我调用API时,它都会在他们的服务中创建一个新客户. API服务只有一个客户类型对象.但在我的应用程序中,我有两种类型的对象(例如：学生,教师)API不关心我是否正在发送学生对象或教师对象.这两个对象都是API透视图中的客户. 因此,当我调用API时,我需要创建公共客户对象以传递给API.但我在我的应用程序中有两个对象,我想编写一个接受Student和Teacher对象的方法,但返回一个客户对象. 这是泛型的可能吗？或者任何其他方式使这简单而有效？ 请参阅下面的示例代码. public static Customer CreateCustomer<T>(T data)
{
var customer = new Customer()
{
CustomerNo = 1,CustomerName = "Test",CustomerContact = new CustomerContact()
{
CustomerContactName = "Test",CustomerContactEmail = "test@test.com",CustomerContactPhone = "022222111"
},PrimaryAddress = new CustomerAddress()
{
Street = "Hill street",ZipCode = "16962",City = "New york",Country = "USA"
},BillingAddress = new CustomerAddress()
{
Street = "Hill street",Country = "USA"
}
};
return customer;
}
public class Teacher
{
public long TeacherID { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public Subject Subjects { get; set; }
public string Email{ get; set; }
public string ContactNO{ get; set; }
public Address PrimaryAddress { get; set; }
public Address SecondaryAddress { get; set; }
}
public class Student
{
public long StudentID { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public int Age { get; set; }
public string Email{ get; set; }
public string ContactNO{ get; set; }
public Address PrimaryAddress { get; set; }
public Address SecondaryAddress { get; set; }
public string Grade { get; set; }
public int Level { get; set; }
}
T数据可以是学生或教师.我想替换此数据对象中的硬编码值.可能吗？ 解决方法
首先编写看起来像你的泛型类
public class CustomerService<T> where T : class
{
public static Customer CreateCustomer(T data)
{
Customer customer = new Customer();
if (typeof(T) == typeof(Student)) //We just check here is data comes from api is of type Student
{
Student student = (Student)(object)data; //then cast this data to Student
customer = new Customer()
{
CustomerNo = student.StudentID,// Convert.ToInt32(student.StudentID),CustomerName = student.FirstName,//Assign all your remaining customer properties with desired values
CustomerContact = new CustomerContact()
{
CustomerContactName = "Test",CustomerContactPhone = "022222111"
},PrimaryAddress = new CustomerAddress()
{
Street = "Hill street",Country = "USA"
},BillingAddress = new CustomerAddress()
{
Street = "Hill street",Country = "USA"
}
};
}
if (typeof(T) == typeof(Teacher)) //We just check here is data comes from api is of type Teacher
{
Teacher teacher = (Teacher)(object)data; //then cast this data to Teacher
customer = new Customer()
{
CustomerNo = teacher.TeacherID,// Convert.ToInt32(teacher.TeacherID),CustomerName = teacher.FirstName,Country = "USA"
}
};
}
return customer;
}
}
您可以根据需要在上述方法中使用if-if或if-else-if. 从你的api控制器动作调用你的CreateCustomer泛型方法 学生数据或教师数据来自您的前端 [HttpPost]
//public IHttpActionResult GetCustomer([HttpPost]Teacher teacher)
public IHttpActionResult GetCustomer()
{
Teacher teacher = new Teacher { TeacherID = 12,FirstName = "Vijay" }; //this teacher data comes from front end or from caller of this api
Customer customer1 = CustomerService<Teacher>.CreateCustomer(teacher);
return Ok(customer1);
}
要么 [HttpPost]
//public IHttpActionResult GetCustomer([HttpPost]Student student)
public IHttpActionResult GetCustomer()
{
Student student = new Student { StudentID = 11,FirstName = "Kunal" }; //this student data comes from front end or from caller of this api
Customer customer2 = CustomerService<Student>.CreateCustomer(student);
return Ok(customer2);
}
结果 老师作为客户：
学生作为客户：
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