C#实体类转换的两种方式小结_C#教程

//学生类   
private class Student
{
    public string name { get; set; }
    public int age { get; set; }
    public string className { get; set; }
 
}
//教师类
private class Teacher
{
    public string name { get; set; }
    public int age { get; set; }
    public string sex { get; set; }
}
//给学生类赋值
 Student student = new Student
 {
     name = "张三",
     age = 20,
     className = "六"
 };
 //泛型+反射方式
 Teacher teacher = ConvertModel<Teacher, Student>(student);
 Console.WriteLine(teacher.name);//张三
 Console.WriteLine(teacher.age);//20
 Console.WriteLine(teacher.sex);
 
 //JSON序列化方式
 teacher = null;
 string json = JsonConvert.SerializeObject(student);
 teacher = JsonConvert.DeserializeObject<Teacher>(json);
 Console.WriteLine(teacher.name);//张三
 Console.WriteLine(teacher.age); //20
 Console.WriteLine(teacher.sex);
 
 
 //泛型+反射
public static T ConvertModel<T, P>(P pModel)
{
    T ret = System.Activator.CreateInstance<T>();
 
    List<PropertyInfo> p_pis = pModel.GetType().GetProperties().ToList();
    PropertyInfo[] t_pis = typeof(T).GetProperties();
 
    foreach (PropertyInfo pi in t_pis)
    {
        //可写入数据
        if (pi.CanWrite)
        {
            //忽略大小写
            var name = p_pis.Find(s => s.Name.ToLower() == pi.Name.ToLower());
            if (name != null && pi.PropertyType.Name == name.PropertyType.Name)
            {
                pi.SetValue(ret, name.GetValue(pModel, null), null);
            }
 
        }
    }
 
    return ret;
}

string jsonstr = JsonConvert.SerializeObject(model);