C#实体类转换的两种方式：序列化、泛型+反射

将一个实体类的数据赋值到另一个实体类中（亦或者实现深拷贝）。

以下提供两种方式，一种是序列化，一种是泛型+反射；

实现功能：

两个实体类数据转换赋值

开发环境：

开发工具：Visual Studio 2013 .NET Framework版本：4.5

.实现代码：

//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;
}

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