反射抽象工厂
0
悬赏园豆：10
[已解决问题]
解决于 2009-12-06 13:47
class User
{
private int _id;
public int ID
{
get{return _id;}
set{_id=value;}
}
private string _name;
public string Name
{
get{return _name;}
set{_name=value;}
}
}
interface IUser
{
void Insert(User user);
User GetUser(int id);
}
class SqlserverUser:IUser
{
public void Insert(User user)
{
Console.WriteLine("在SQL Server中根据ID得到User表增加1条记录");
}
public User GetUser(int id)
{
Console.WriteLine("在SQL Server中根据ID得到User表的1条记录");
return null;
}
}
class AccessUser : IUser
{
public void Insert(User user)
{
Console.WriteLine("在Access中给User表增加一条记录");
}
public User GetUser(int id)
{
Console.WriteLine("在Access中根据ID得到User表一条记录");
return null;
}
}
class DataAccess
{
private static readonly string AssemblyName = "File";
private static readonly string db = "Sqlserver";
public static IUser CreateUser()
{
string className = AssemblyName + "." + db + "User";
return (IUser)Assembly.Load(AssemblyName).CreateInstance(className);
}
}
class Test
{
static void Main()
{
User user = new User();
IUser iu = DataAccess.CreateUser();
iu.Insert(user);
iu.GetUser(1);
Console.Read();
}
}
为什么反射不出来，没有实例化，怎么解决
最佳答案
1
namespace WOODY
{
public class User
{
private int _id;
public int ID
{
get { return _id; }
set { _id = value; }
}
private string _name;
public string Name
{
get { return _name; }
set { _name = value; }
}
}
public interface IUser
{
void Insert(User user);
User GetUser(int id);
}
public class SqlserverUser : IUser
{
public void Insert(User user)
{
HttpContext.Current.Response.Write("在SQL Server中根据ID得到User表增加1条记录");
}
public User GetUser(int id)
{
HttpContext.Current.Response.Write("在SQL Server中根据ID得到User表的1条记录");
return null;
}
}
public class AccessUser : IUser
{
public void Insert(User user)
{
HttpContext.Current.Response.Write("在Access中给User表增加一条记录");
}
public User GetUser(int id)
{
HttpContext.Current.Response.Write("在Access中根据ID得到User表一条记录");
return null;
}
}
public class DataAccess
{
private static readonly string AssemblyName = "WOODY";
private static readonly string db = "Sqlserver";
public IUser CreateUser()
{
string className = AssemblyName + "." + db + "User";
string NAME = this.GetType().Assembly.FullName;
return (IUser)Assembly.Load(this.GetType().Assembly.FullName).CreateInstance(className);
}
}
}
-----
User user = new User();
DataAccess DA = new DataAccess();
IUser iu = DA.CreateUser();
iu.Insert(user);
iu.GetUser(1);
收获园豆：5
谢谢
其他回答(1)
0
你的AssemblyName有没有错啊？
收获园豆：5
恩，你点到了