反射工厂怎么弄？详细点~代码贴出来。~谢谢~

Question

反射工厂怎么弄？详细点~代码贴出来。~谢谢~

Answer 1

petshop里就是反射工厂呀，看看吧，要是没有百度一个PETSHOP去，然后安装上

Answer 2

看petshop
  private static readonly string _path = System.Configuration.ConfigurationManager.AppSettings["DAL"];
        private static object GetInstance(string CacheKey)
        {
            object objType = DataCache.GetCache(CacheKey);
            if (objType == null)
            {
                try
                {
                    objType = Assembly.Load(DALFactory._path).CreateInstance(CacheKey);
                    DataCache.SetCache(CacheKey, objType);
                }
                catch (Exception ex)
                {
                    throw ex;
                }
            }
            return objType;
        }
        public static IAnnounceDAL AnnounceDALInstance()
        {
            string CacheKey = DALFactory._path + ".AnnounceDAL";
            object objType = DALFactory.GetInstance(CacheKey);
            return (IAnnounceDAL)objType;
        }

Answer 3

/*
 *
 * 公司名称 : ***
 * 用 户 名 : 枫中玫瑰
 * 创建日期 ：2009-1-6  16:25
 * 程序名称 ：AbstractFactory模式
 * 
 */using System;
using System.Text;
using System.Reflection;namespace ConsoleApplication1
{
    class ChineseCode
    {
        public static void Main()
        {
            Factory mySalary = Factory.GetInstance();            double bonusValue = mySalary.CalculateBonus();
            double taxValue = mySalary.CalculateTax();
            double salary = Constant.BASE_SALARY + bonusValue - taxValue;            Console.WriteLine(Constant.FACTORYNAME.Substring(0, Constant.FACTORYNAME.Length - 7) + " Salary is：" + salary);
            Console.ReadKey();
        }
    }    #region Abstract Factory模式(抽象工厂)
    /// <summary>
    /// 公用的常量
    /// </summary>
    public class Constant
    {
        public static double BASE_SALARY = 4000;
        public static string FACTORYNAME = "ChineseFactory";      //因未使用配置文件, 故此处用于指定工厂
    }    /// <summary>
    /// 抽象工厂
    /// </summary>
    public abstract class Factory
    {
        public static Factory GetInstance()
        {
            Factory instance;
            string assemblyName = "ConsoleApplication1";            // 使用该语句会造成NullReferencException异常
            // string factoryName = Constant.FACTORYNAME.ToString();
            string factoryName = assemblyName + "." + Constant.FACTORYNAME.ToString();            //使用反射时, 命名空间应与程序名一致, 否则会造成NullReferencException异常
            if (factoryName != "")
                instance = (Factory)Assembly.Load(assemblyName).CreateInstance(factoryName);
            else
                instance = null;            return instance;
        }        public abstract double CalculateBonus();
        public abstract double CalculateTax();
    }    /// <summary>
    /// 中国工厂
    /// </summary>
    public class ChineseFactory : Factory
    {
        //计算工资
        public override double CalculateBonus()
        {
            return Constant.BASE_SALARY * 0.1;
        }        // 计算个人所得税
        public override double CalculateTax()
        {
            return ((Constant.BASE_SALARY + Constant.BASE_SALARY * 0.1) * 0.4);
        }
    }    //// <summary>
    /// 美国工厂
    /// </summary>
    public class AmericanFactory : Factory
    {
        //计算工资
        public override double CalculateBonus()
        {
            return Constant.BASE_SALARY * 0.15;
        }        // 计算个人所得税
        public override double CalculateTax()
        {
            return (Constant.BASE_SALARY * 0.05 + Constant.BASE_SALARY * 0.25);
        }
    }
    #endregion
}
代码来自程杰的 大话设计模式 . 如果不懂, 可以下本电子书来看.