DDD领域模型企业级系统Unity（五）

DDD领域模型企业级系统Unity（五）

添加程序集：

写一个接口：

public interface IPlayer { void Play(); }

两个实现类：

public class NewPlay : IPlayer { public void Play() { MessageBox.Show("NewPlay"); } } public void Play() { MessageBox.Show("OldPlay"); }

ServiceLocator类：

public class ServiceLocator { IUnityContainer container = new UnityContainer(); public ServiceLocator() { container.RegisterType("new"); container.RegisterType("old"); } public IUnityContainer GetContainer() { return container; } }

调用：获取一个和全部

ServiceLocator servicelocator = new ServiceLocator(); var iplay = servicelocator.GetContainer().Resolve("new"); var iplays = servicelocator.GetContainer().ResolveAll(); foreach(var iplay in iplays) { iplay.Play(); }

构造函数的调用：

[InjectionConstructor] public OldPlay() { MessageBox.Show("构造函数被执行"); }

var iplay = servicelocator.GetContainer().Resolve("old");

属性注入：

写一个类：

public class Person { public string Name { get { return "孙"; } } public int Age { get { return 32; } } }

[Dependency] public Person person { get; set; }

自动实例化

public void Play() { MessageBox.Show("OldPlay "+person.Name); }

方法调用注入：

public Person person { get; set; }public void Play() { MessageBox.Show("OldPlay"); } [InjectionMethod] public void Auto(Person person) { MessageBox.Show("注入方法 "+person.Name); }

依赖注入的原理：

添加ProductRepository的仓储：（给聚合根建立仓储）

public class ProductRepository:EFRepository { }

添加SalesOrderRepository的仓储：

public class SalesOrderRepository:EFRepository { }

添加ProductRepository的仓储：

public class ProductRepository:EFRepository { }

添加CustomerRepository的仓储：

public class CustomerRepository:EFRepository { }

定义一个实现Product领域逻辑的部分类（继承聚合根）：

public partial class Product:AggreateRoot { //定义仓储的接口 private IRepository irepository; //由调用方指定具体仓储的实现 public Product(IRepository irepository) { this.irepository = irepository; } //默认构造函数 public Product() { } ///

/// 实现自身聚合根的职责 ///

/// /// /// /// /// /// /// public void CreateProduct(string name,string color,string size,int count, decimal unitprice,string categoryname,string description) { var product = new Product(); product.Id = base.Id; //聚合根的ID product.ProductName = name; product.Color = color; product.Size = size; product.Count = count; product.UnitPrice = unitprice; //聚合根下面的实体和值对象 var productcategory = new ProductCategory(categoryname,description); product.ProductCategory = productcategory; //添加到仓储中把对象维护起来 irepository.Create(product); } ///

/// 减少库存的责 ///

/// /// /// public void ModifyCount(Product p,int amount,IRepository irepository) { p.Count = this.Count - amount; irepository.Update(p); } public Product GetProducyByName(string productname) { return irepository.GetByCondition(p => p.ProductName == productname) .FirstOrDefault(); } }

定义一个值对象：（负责维护自己的领域逻辑和状态信息）

public abstract class ValueObject : IValueObject { public Guid Id { get { var id = Guid.NewGuid(); return id; } } } public interface IValueObject { Guid Id { get; } }

产品类别的逻辑：

public partial class ProductCategory:ValueObject { public ProductCategory(string categoryname,string description) { this.Id = base.Id; this.CategoryName = categoryname; this.Description = description; } }

地址的值对象：

///

/// 值对象 ///

public partial class Address:ValueObject { public Address(string state,string city,string street) { this.State = state; this.City = city; this.Street = street; } }

定义一个实现Customer领域逻辑的部分类（继承聚合根）：

public partial class Customer:AggreateRoot { //定义仓储接口 private IRepository irepository; //构造函数 public Customer(IRepository irepository) { this.irepository = irepository; } public void CreateCustomer(string name,string mobile,string state,string city, string street) { Customer customer = new Customer(); customer.Id = base.Id; customer.Name = name; customer.Mobile = mobile; addcustomeraddress(customer, state, city, street); irepository.Create(customer); } ///

/// 添加地址 ///

/// /// /// /// private void addcustomeraddress(Customer customer,string state,string city,string street) { //值对象 var address = new Address(state, city, street); //添加地址 customer.Address.Add(address); } public void AddCustomerOtherAddress(Customer customer,string state,string city, string street) { addcustomeraddress(customer, state, city, street); irepository.Update(customer); } public Customer GetCustomerByName(string name) { return irepository.GetByCondition(p => p.Name == name).FirstOrDefault(); } }

单元测试（添加引用）：

单元测试：

EFRepositoryContext context = new EFRepositoryContext(); [TestMethod] public void CreateProduct() { //Product product = new Product(new ProductRepository()); ProductAppService product = new ProductAppService(); product.CreateProduct("P1", "Red", "Small", 100, 55, "C1", "T恤类产品"); product.CreateProduct("P2", "Green", "Big", 200, 40, "C2", "运动类产品"); context.Commit(); Assert.IsNotNull(product.GetProductByName("P1")); } [TestMethod] public void CreateCustomer() { Customer customer = new Customer(new CustomerRepository()); customer.CreateCustomer("sun", "13458629365", "sanxi", "sanxi", "sanxi"); context.Commit(); Assert.IsNotNull(customer.GetCustomerByName("sun")); }

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