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控制器中使用

public class IOCController : ApiController{
       private IUserService _UserService = null;    public IOCController(IUserService userService)    {
           this._UserService = userService;    }    public string Get(int id)    {
           //IUserService service = new UserService();        //IUserService service = ContainerFactory.BuildContainer().Resolve
   
    ();        return Newtonsoft.Json.JsonConvert.SerializeObject(this._UserService.Query(id));    }}
   

DI注入相关类

public class UnityDependencyResolver : IDependencyResolver{
       private IUnityContainer _UnityContainer = null;    public UnityDependencyResolver(IUnityContainer container)    {
           _UnityContainer = container;    }    public IDependencyScope BeginScope()//Scope    {
           return new UnityDependencyResolver(this._UnityContainer.CreateChildContainer());    }    public void Dispose()    {
           this._UnityContainer.Dispose();    }    public object GetService(Type serviceType)    {
           try        {
               return ContainerFactory.BuildContainer().Resolve(serviceType);        }        catch (Exception ex)        {
               Console.WriteLine(ex.Message);            return null;        }    }    public IEnumerable

/// 
/// 需要在nuget引用之后，单独引用Unity.Configuration/// 如果有AOP扩展，还需要引用Unity.Interception.Configuration/// 因为我们是用配置文件来做的配置/// 
public class ContainerFactory{
       public static IUnityContainer BuildContainer()    {
           //get        //{
           return _Container;        //}    }    private static IUnityContainer _Container = null;    static ContainerFactory()    {
           ExeConfigurationFileMap fileMap = new ExeConfigurationFileMap();        fileMap.ExeConfigFilename = Path.Combine(AppDomain.CurrentDomain.BaseDirectory + "CfgFiles\\Unity.Config");//找配置文件的路径        Configuration configuration = ConfigurationManager.OpenMappedExeConfiguration(fileMap, ConfigurationUserLevel.None);        UnityConfigurationSection section = (UnityConfigurationSection)configuration.GetSection(UnityConfigurationSection.SectionName);        _Container = new UnityContainer();        section.Configure(_Container, "WebApiContainer");    }}

路由注入

public static class WebApiConfig{
       public static void Register(HttpConfiguration config)    {
           // Web API 配置和服务        config.DependencyResolver = new UnityDependencyResolver(ContainerFactory.BuildContainer());        // Web API 路由        config.MapHttpAttributeRoutes();        config.Routes.MapHttpRoute(            name: "DefaultApi",//默认的api路由            routeTemplate: "api/{controller}/{id}",//正则规则，以api开头，第二个是控制器  第三个是参数            defaults: new {
    id = RouteParameter.Optional }        );        //   config.Routes.MapHttpRoute(        //    name: "CustomApi",//默认的api路由        //    routeTemplate: "api/{controller}/{action}/{id}",//正则规则，以api开头，第二个是控制器  第三个是参数        //    defaults: new { id = RouteParameter.Optional }        //);    }}

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