Unity的初步使用

1、为什么要要使用Unity

参看：http://www.cnblogs.com/leoo2sk/archive/2009/06/17/1504693.html

2、怎么使用配置文件配置依赖关系

1、安装企业库5.0，下载地址：http://msdn.microsoft.com/en-us/library/ff632023.aspx

2、添加项目引用

System.configuration

Microsoft.Practices.Unity

Microsoft.Practices.Unity.Configuration

   public class Container
    {
        static Container()
        {
            //UnityConfigurationSection section = ConfigurationManager.GetSection("unity") as UnityConfigurationSection;
            Current = new UnityContainer();
            try
            {
                Current.LoadConfiguration("PetShop");
            }
            catch(Exception ex)
            {
                throw ex;
            }
        }

        /// <summary>
        /// 创建一个子容器
        /// </summary>
        /// <returns></returns>
        public static IUnityContainer CreateChildContainer()
        {
            return Current.CreateChildContainer();
        }



        /// <summary>
        /// Unity容器<see cref="Microsoft.Practices.Unity.IUnityContainer"/>
        /// </summary>
        public static IUnityContainer Current
        {
            get;
            private set;
        }
    }

    public interface ILog
    {
        string GetLog();
    }

    public class SQLLog:ILog
    {
        public string GetLog()
        {
            return "SQLLog";
        }
    }

    public class FileLog:ILog
    {
        public string GetLog()
        {
            return "FileLog";
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            ILog logA = Container.Current.Resolve<ILog>();
            System.Console.WriteLine(logA.GetLog() + logA.GetHashCode());
            ILog logB = Container.Current.Resolve<ILog>();
            System.Console.WriteLine(logB.GetLog() + logB.GetHashCode());
            System.Console.ReadLine();
        }
    }