用Microsoft.Practices.Unity實現簡單的依賴注入

第一步：先寫個前台代碼

 

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using ITest;namespace TestUnity{    public partial class _Default : System.Web.UI.Page    {        protected void Page_Load(object sender, EventArgs e)        {        }        protected void Button1_Click(object sender, EventArgs e)        {            IService service = WebSingleton.ApplicationContainer.Resolve<IService>();            if (service.UserLogin(TextBox1.Text, TextBox2.Text)) {                Response.Write("success");            }        }    }}

第二步：寫個介面來提供注入入口

using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace ITest{   public interface IService    {       bool UserLogin(string uname, string pwd);    }}

第三步：實現這個介面

using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace ITest{   public class Service:IService    {              #region IService 成員       public bool UserLogin(string uname, string pwd)       {           return true;       }       #endregion    }}

第四步：調用依賴注入的類

using System;using System.Collections.Generic;using System.Linq;using System.Text;using Microsoft.Practices.Unity;using System.Web;namespace ITest{    public class WebSingleton    {        public static IUnityContainer ApplicationContainer        {            get            {                return HttpContext.Current.Application["Container"] as IUnityContainer;            }            set            {                HttpContext.Current.Application["Container"] = value;            }        }    }}