Unity 容器常见使用声景

/*****************************************************/
//Create Class With Interface Dependencies
#region
//需要某实现某接口的具体实例
UnityContainer container=new UnityContainer();
container.RegisterType(ILogger,NullLogger>();
Database datavase = container.Resolve<CustomDatabase>Database();

#endregion
CustomDatabase的构造函数包含ILogger参数
CustomDatabase(ILogger log){}

/*****************************************************/
//Create TypeMapping-Interface
UnityContainer container=new UnityContainer();
container.RegisterType(ILogger,NullLogger>();
ILogger logger = container.Resolve<ILogger>();

/*****************************************************/
//Register Singleton
UnityContainer container=new UnityContaier();
container.RegisterType<Database,SqlDatabase>
	(new ContainerControlledLifetimeManager());
/*****************************************************/
//Registering Named Instances
UnityContainer container=new UnityContaier();
container.RegisterType<Database,SqlDatabase>("SQL");
container.RegisterType<Database,OracleDatabase>("ORACLE");

IEnumerable<Database> databases = container.ResolveAll<Database>(); //Return All named instances
Database database = container.Resolve<Database>("SQL");
/*****************************************************/
//Register Existing Intance 
//Registering Named Instances
UnityContainer container=new UnityContaier();
container.RegisterInstance<Database>(new SqlDatabase());	//注册instance，Unity认为它是Singleton
container.RegisterInstance<Database>("ORACLE",new OracleDatabase());

Database database = container.Resolve<Database>("ORACLE");

/*****************************************************/
//Buildup Existing Instace
UnityContainer container=new UnityContainer();
container.RegisterType(ILogger,NullLogger>();

DB2Database existingDatabase = new DB2Database();

container.BuildUp(existingDatabase);		//创建引用关系
container.RegisterInstance<Database>(existingDatabase);

Database database = container.Resolve<Database>();

//-----
public class DB2Database:Database{
	[Dependency]
	public ILogger Logger{get;set}
}
/*****************************************************/
// Configure Container via Config File
UnityContainer _contaier=new UnityContaier();
 UnityConfigurationSection section = (UnityConfigurationSection)ConfigurationManager.GetSection("unity");
section.Configure(_container); // Unnamed <container> element

ICustomerDataSource datasource=_container.Resolve<ICustomerDataSource>();

/*****************************************************/
container.Configure<InjectedMembers>()
	.ConfigureInjectionFor<GenericDatabase>(
		new ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString
		new InjectionProperty("Logger")
	);
Database database=container.Resolve<Database>();
/*****************************************************/
//NestedContainers 父子容器,适用于，有公共容器。树型结构的容器o
UnityContainer parentContainer  = new UnityContaier();
IUnityContaier childContainer1 = parentContaier.CreateChildContainer();
IUnityContaier childContainer2 = parentContaier.CreateChildContainer();
/...