新聞中心
一、為什么使用AutoFac?

創(chuàng)新互聯(lián)建站專(zhuān)業(yè)為企業(yè)提供棗強(qiáng)網(wǎng)站建設(shè)、棗強(qiáng)做網(wǎng)站、棗強(qiáng)網(wǎng)站設(shè)計(jì)、棗強(qiáng)網(wǎng)站制作等企業(yè)網(wǎng)站建設(shè)、網(wǎng)頁(yè)設(shè)計(jì)與制作、棗強(qiáng)企業(yè)網(wǎng)站模板建站服務(wù),十年棗強(qiáng)做網(wǎng)站經(jīng)驗(yàn),不只是建網(wǎng)站,更提供有價(jià)值的思路和整體網(wǎng)絡(luò)服務(wù)。
之前介紹了Unity和Ninject兩個(gè)IOC容器,但是發(fā)現(xiàn)園子里用AutoFac的貌似更為普遍,于是捯飭了兩天,發(fā)現(xiàn)這個(gè)東東確實(shí)是個(gè)高大上的IOC容器~
Autofac是.NET領(lǐng)域最為流行的IOC框架之一,傳說(shuō)是速度最快的一個(gè):
優(yōu)點(diǎn):
-
它是C#語(yǔ)言聯(lián)系很緊密,也就是說(shuō)C#里的很多編程方式都可以為Autofac使用,例如可以用Lambda表達(dá)式注冊(cè)組件
-
較低的學(xué)習(xí)曲線,學(xué)習(xí)它非常的簡(jiǎn)單,只要你理解了IoC和DI的概念以及在何時(shí)需要使用它們
-
XML配置支持
-
自動(dòng)裝配
-
與Asp.Net MVC 3集成
-
微軟的Orchad開(kāi)源程序使用的就是Autofac,從該源碼可以看出它的方便和強(qiáng)大
既然它都這么牛X了,我們用它就理所當(dāng)然了,所以推薦其為IOC的終極解決方案!
二、AutoFac的使用
首先你必須獲取AutoFac,這里你可以通過(guò)各種方式加載它,我這里還是通過(guò)VS中的NuGet來(lái)加載AutoFac,不論是哪種方式,最終的目的就是將 Autofac.dll,Autofac.Configuration.dll 這兩個(gè)程序集引用到你的項(xiàng)目中。這樣在你的項(xiàng)目中,如果想使用AutoFac,只需添加其命名空間引用即可~
1、AutoFac入門(mén)
我們先定義一個(gè)數(shù)據(jù)訪問(wèn)的接口:
- public interface IDAL
- {
- void Insert(string commandText);
- }
然后用Sql和Oracle兩種方式分別實(shí)現(xiàn)上述接口,不過(guò)這里只是演示而已,所以并沒(méi)有真正去實(shí)現(xiàn)這兩個(gè)類(lèi),你懂的~
SQL方式:
- public class SqlDAL : IDAL
- {
- public void Insert(string commandText)
- {
- Console.WriteLine("使用sqlDAL添加相關(guān)信息");
- }
- }
Oracle方式:
- public class OracleDAL : IDAL
- {
- public void Insert(string commandText)
- {
- Console.WriteLine("使用OracleDAL添加相關(guān)信息");
- }
- }
然后注入實(shí)現(xiàn)構(gòu)造函數(shù)注入:
- public class DBManager
- {
- IDAL _dal;
- public DBManager(IDAL dal)
- {
- _dal= dal;
- }
- public void Add(string commandText)
- {
- _dal.Insert(commandText);
- }
- }
最后要真正完成依賴(lài)注入就得AtuoFac登場(chǎng)了:
- var builder = new ContainerBuilder();
- builder.RegisterType
(); - builder.RegisterType
().As (); - using (var container = builder.Build())
- {
- var manager = container.Resolve
(); - manager.Add("INSERT INTO Persons VALUES ('Man', '25', 'WangW', 'Shanghai')");
- }
從以上栗子可以看出,其實(shí)AutoFac的使用跟Unity的使用有點(diǎn)像,關(guān)鍵的東東就是這個(gè)Container容器類(lèi)
2、AutoFac常用方法說(shuō)明
(1)builder.RegisterType
- ContainerBuilder builder = new ContainerBuilder();
- builder.RegisterType
().As (); - IContainer container = builder.Build();
- SqlDAL sqlDAL = (SqlDAL)container.Resolve
();
(2)IContainer.Resolve
(3)builder.RegisterType
- builder.RegisterType
().Named ("sql"); - builder.RegisterType
().Named ("oracle"); - IContainer container = builder.Build();
- SqlDAL sqlDAL = (SqlDAL)container.ResolveNamed
("sql"); - OracleDAL oracleDAL = (OracleDAL)container.ResolveNamed
("oracle");
(4)IContainer.ResolveNamed
(5)builder.RegisterType
- public enum DBType{ Sql, Oracle}
- builder.RegisterType
().Keyed (DBType.Sql); - builder.RegisterType
().Keyed (DBType.Oracle); - IContainer container = builder.Build();
- SqlDAL sqlDAL = (SqlDAL)container.ResolveKeyed
(DBType.Sql); - OracleDAL oracleDAL = (OracleDAL)container.ResolveKeyed
(DBType.Oracle);
(6)IContainer.ResolveKeyed
(7)builder.RegisterType
(8)builder.RegisterType
(9)IContainer.Resolve
- DBManager manager = container.Resolve
(new NamedParameter("name", "SQL"));
- public class DBManager
- {
- IDAL dal;
- public DBManager (string name,IDAL _dal)
- {
- Name = name;
- dal= _dal;
- }
- }
3、通過(guò)配置的方式使用AutoFac
(1)先配置好配置文件
(2)讀取配置實(shí)現(xiàn)依賴(lài)注入(注意引入Autofac.Configuration.dll)
- static void Main(string[] args)
- {
- ContainerBuilder builder = new ContainerBuilder();
- builder.RegisterType
(); - builder.RegisterModule(new ConfigurationSettingsReader("autofac"));
- using (IContainer container = builder.Build())
- {
- DBManager manager = container.Resolve
(); - manager.Add("INSERT INTO Persons VALUES ('Man', '25', 'WangW', 'Shanghai')");
- }
#p#
三、ASP.NET MVC與AtuoFac
終于到了ASP.NET MVC與AtuoFac雙劍合璧的時(shí)候了,下面就看看AtuoFac在MVC中的應(yīng)用,其實(shí)很簡(jiǎn)單,大概就幾個(gè)步驟搞定:
1、首先在函數(shù)Application_Start() 注冊(cè)自己的控制器類(lèi),一定要引入Autofac.Integration.Mvc.dll
- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Web;
- using System.Web.Http;
- using System.Web.Mvc;
- using System.Web.Optimization;
- using System.Web.Routing;
- using Autofac;
- using AtuoFacOfMVC4.Models;
- using System.Reflection;
- using Autofac.Integration.Mvc;
- namespace AtuoFacOfMVC4
- {
- public class MvcApplication : System.Web.HttpApplication
- {
- protected void Application_Start()
- {
- var builder = new ContainerBuilder();
- SetupResolveRules(builder);
- builder.RegisterControllers(Assembly.GetExecutingAssembly());
- var container = builder.Build();
- DependencyResolver.SetResolver(new AutofacDependencyResolver(container));
- AreaRegistration.RegisterAllAreas();
- WebApiConfig.Register(GlobalConfiguration.Configuration);
- FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
- RouteConfig.RegisterRoutes(RouteTable.Routes);
- BundleConfig.RegisterBundles(BundleTable.Bundles);
- AuthConfig.RegisterAuth();
- }
- private void SetupResolveRules(ContainerBuilder builder)
- {
- builder.RegisterType
().As (); - }
- }
- }
2、現(xiàn)在在你的MVC程序中注入依賴(lài)代碼就ok了
(1)首先聲明一個(gè)Student學(xué)生類(lèi)
- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Web;
- namespace AtuoFacOfMVC4.Models
- {
- public class Student
- {
- public int Id { get; set; }
- public string Name { get; set; }
- public string Graduation { get; set; }
- public string School { get; set; }
- public string Major { get; set; }
- }
- }
(2)然后聲明倉(cāng)儲(chǔ)接口及其實(shí)現(xiàn)
- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Text;
- namespace AtuoFacOfMVC4.Models
- {
- public interface IStudentRepository
- {
- IEnumerable
GetAll(); - Student Get(int id);
- Student Add(Student item);
- bool Update(Student item);
- bool Delete(int id);
- }
- }
- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Web;
- namespace AtuoFacOfMVC4.Models
- {
- public class StudentRepository : IStudentRepository
- {
- private List
Articles = new List (); - public StudentRepository()
- {
- //添加演示數(shù)據(jù)
- Add(new Student { Id = 1, Name = "張三", Major = "軟件工程", Graduation = "2013年", School = "西安工業(yè)大學(xué)" });
- Add(new Student { Id = 2, Name = "李四", Major = "計(jì)算機(jī)科學(xué)與技術(shù)", Graduation = "2013年", School = "西安工業(yè)大學(xué)" });
- Add(new Student { Id = 3, Name = "王五", Major = "自動(dòng)化", Graduation = "2013年", School = "西安工業(yè)大學(xué)" });
- }
- ///
- /// 獲取全部學(xué)生信息
- ///
- ///
- public IEnumerable
GetAll() - {
- return Articles;
- }
- ///
- /// 通過(guò)ID獲取學(xué)生信息
- ///
- ///
- ///
- public Student Get(int id)
- {
- return Articles.Find(p => p.Id == id);
- }
- ///
- /// 添加學(xué)生信息
- ///
- ///
- ///
- public Student Add(Student item)
- {
- if (item == null)
- {
- throw new ArgumentNullException("item");
- }
- Articles.Add(item);
- return item;
- }
- ///
- /// 更新學(xué)生信息
- ///
- ///
- ///
- public bool Update(Student item)
- {
- if (item == null)
- {
- throw new ArgumentNullException("item");
- }
- int index = Articles.FindIndex(p => p.Id == item.Id);
- if (index == -1)
- {
- return false;
- }
- Articles.RemoveAt(index);
- Articles.Add(item);
- return true;
- }
- ///
- /// 刪除學(xué)生信息
- ///
- ///
- ///
- public bool Delete(int id)
- {
- Articles.RemoveAll(p => p.Id == id);
- return true;
- }
- }
- }
(3)最后添加控制器StudentController,并注入依賴(lài)代碼
- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Web;
- using System.Web.Mvc;
- using AtuoFacOfMVC4.Models;
- namespace AtuoFacOfMVC4.Controllers
- {
- public class StudentController : Controller
- {
- readonly IStudentRepository repository;
- //構(gòu)造器注入
- public StudentController(IStudentRepository repository)
- {
- this.repository = repository;
- }
- public ActionResult Index()
- {
- var data = repository.GetAll();
- return View(data);
- }
- }
- }
(4)最后為控制器StudentController的Index方法添加視圖即可,這里不再詳述,運(yùn)行效果如下
*將自己學(xué)習(xí)的點(diǎn)滴記錄并分享出來(lái),既能使自己得到成長(zhǎng),偶爾也能幫助一下別人,何樂(lè)而不為呢?如果這篇文章對(duì)你還有點(diǎn)用的話,希望幫忙推薦一下~
當(dāng)前題目:ASP.NETMVCIOC之AutoFac攻略
標(biāo)題路徑:http://fisionsoft.com.cn/article/dhjhicd.html


咨詢(xún)
建站咨詢(xún)
