在asp.net webform下使用Ninject的简单过程。
首先建立个项目,如下图,简单三层(PS:UI层要同时引用BLL、Model、DAL这三层)
写好代码
Model:
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using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Model { public class UserInfo { public int UserID { get; set; } public string UserName { get; set; } public string Password { get; set; } public DateTime LastLoginDate { get; set; } public int Integral { get; set; } } }
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using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Model { public class Log { public int Id { get; set; } public int ActionUserId { get; set; } public string Desription { get; set; } public DateTime CreateOn { get; set; } } }
DAL:
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using System; using System.Collections.Generic; using System.Linq; using System.Text; using Model; namespace DAL { public interface IUser { Model.UserInfo Create(Model.UserInfo user); void Update(Model.UserInfo user); Model.UserInfo GetModel(string userName); Model.UserInfo GetModel(int userId); void DeleteUser(int uid); } public class User : IUser { public Model.UserInfo Create(Model.UserInfo user) { //do some SQL return new UserInfo() { UserID=1, UserName="myName", Password="Passowrd", LastLoginDate=DateTime.Now, Integral=0 }; } public void Update(Model.UserInfo user) { //do some SQL } public Model.UserInfo GetModel(string userName) { //do some SQL return new UserInfo() { UserID = 1, UserName = "admin", Password = "passowrd", LastLoginDate = DateTime.Now, Integral = 0 }; } public Model.UserInfo GetModel(int uid) { //do some SQL return new UserInfo() { UserID = uid, UserName = "myName", Password = "Passowrd", LastLoginDate = DateTime.Now, Integral = 0 }; } public void DeleteUser(int uid) { //do some SQL } } }
最后是BLL的代码:
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using System; using System.Collections.Generic; using System.Linq; using System.Text; using Ninject; namespace BLL { public interface IUser { bool Validate(string name, string pwd); bool Login(string name, string pwd); } public class User : IUser { [Inject] public DAL.IUser UserDAL { get; set; } public bool Validate(string name, string pwd) { var isValidate = false; var model = UserDAL.GetModel(name); if (model != null) { pwd = this.GetEncryptPassword(pwd); if (model.Password == pwd) isValidate = true; } return isValidate; } public bool Login(string name, string pwd) { var isValidate = this.Validate(name,pwd); if (isValidate) { var model = UserDAL.GetModel(name); //更新登录时间和积分 model.LastLoginDate = DateTime.Now; model.Integral += 5; UserDAL.Update(model); //记录获得积分事件 BLL.Log.WriteLog(new Model.Log() { ActionUserId = model.UserID, Desription = "每天登录获得5积分", CreateOn = DateTime.Now }); } return isValidate; } private string GetEncryptPassword(string pwd) { //返回加密后的密文 return pwd; } } }
现在,先使用nuGet(如何使用nuGet)在UI层引用组件Ninject和Ninjecet.Web.Common,如下图,绿色的钩子表示已经安装
引用成功后,不用你设置任何配置,然后在自动添加的文件中,添加接口注入:
在文件NinjectWebCommon.cs的方法添加我们进行接口注入:
private static void RegisterServices(IKernel kernel) { kernel.Bind<BLL.IUser>().To<BLL.User>(); kernel.Bind<DAL.IUser>().To<DAL.User>(); }
为了在BLL中进行对DAL接口进行注入,也要在BLL中引用Ninect
方法:右击BLL,选择添加引用,引用的路径 是:
AspNETWebFormNinjectpackagesNinject.3.0.1.10lib et40Ninject.dll
这样就可以在BLL中使用Ninject注入了:
最后们在UI层使用登录:
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namespace AspNETWebFormNinject { public partial class _Default : System.Web.UI.Page { [Inject] public BLL.IUser UserBLl { get; set; } protected void Page_Load(object sender, EventArgs e) { } protected void btnLogin_Click(object sender, EventArgs e) { var isValidate = UserBLl.Login(txtUserName.Text, txtPwd.Text); var msg = isValidate ? "登录成功" : "登录失败"; var script = string.Format("alert('{0}')",msg); Page.ClientScript.RegisterStartupScript(this.GetType(), "", script, true); } } }