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using
System;
using
System.Collections.Generic;
using
System.Linq;
using
System.Reflection;
using
System.Text;
using
System.Threading.Tasks;
namespace
ConsoleApplication1
{class
Program
{static
void
Main(string[] args)
{People p = new
People() { Age = 28, name = new
Name() { FirstName = "zheng", LastName = "zhiqiang"
} };
PeopleDto pDto = new
PeopleDto();
pDto = AutoMapping<People, PeopleDto>.Convert(p, pDto);Console.WriteLine(string.Format("{0} {1} {2}", pDto.Age, pDto.FirstName, pDto.LastName));
Console.Read();}}/// <summary>/// /// </summary>/// <typeparam name="T1">entity</typeparam>/// <typeparam name="T2">dto</typeparam>public
static
class
AutoMapping<T1, T2>
where
T1 : new()
where
T2 : new()
{public
static
T2 Convert(T1 t1, T2 t2)
{var
dtoPiList = t2.GetType().GetProperties().Where(x => x.PropertyType.IsPublic).ToList();
string
name;
object
value;
for
(int
i = 0; i < dtoPiList.Count(); i++)
{name = dtoPiList[i].Name;value = GetPropertyValue(t1, name);if
(null
== value) continue;
dtoPiList[i].SetValue(t2, value, null);
}return
t2;
}private
static
object
GetPropertyValue(object
t1, string
name)
{Type t = t1.GetType();PropertyInfo[] pis = t.GetProperties();//查找当前对象是否包含需要转换的属性var
piTemp = pis.Where(x => x.Name == name).FirstOrDefault();
//不存在递归查询if
(piTemp == null)
{foreach
(PropertyInfo pi in
pis)
{object
obj1 = pi.GetValue(t1, null);
object
obj2 = GetPropertyValue(obj1, name);
if
(obj2 != null) { return
obj2; }
}}else{//判断是否忽略标记 var
cAttr = piTemp.GetCustomAttributes();
foreach
(var
attr in
cAttr)
{var
tempAttr = attr as
AutoMappingAttributes;
if
(tempAttr.Ignore) { return
null; }
}//存在直接返回 return
piTemp.GetValue(t1, null);
}return
null;
}}public
class
AutoMappingAttributes : Attribute
{public
bool
Ignore { get; set; }
}public
class
Name
{public
string
FirstName { get; set; }
[AutoMappingAttributes(Ignore = true)]
public
string
LastName { get; set; }
}public
class
People
{public
int
Age { get; set; }
public
Name name { get; set; }
}public
class
NameDto
{public
string
FirstName { get; set; }
public
string
LastName { get; set; }
}public
class
PeopleDto
{public
string
FirstName { get; set; }
public
string
LastName { get; set; }
public
int
Age { get; set; }
}} |