Unity 的ICallHander在C#項目中實現注入

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項目包引用： Install-Package Unity.Interception

建立項目的介面和其實類：

public interface ICalculator{double CalculateAdd(double a, double b); double CalculateMultiply(double a, double b);double CalculateMinus(double a, double b);double CalculateDevide(double a, double b);}[LoggerIndicate]public class Calculator:ICalculator{public double CalculateAdd(double a, double b) { return a + b; }public double CalculateMultiply(double a, double b) { return a * b; }public double CalculateMinus(double a, double b) { return a - b; }public double CalculateDevide(double a, double b) { return a / b; }}

建立一個方法注入的類，這個類必須實現ICallHander介面

    public class LoggerHandler : ICallHandler    {                public IMethodReturn Invoke(IMethodInvocation input, GetNextHandlerDelegate getNext)        {            var traceId = System.Guid.NewGuid().ToString();            TimeRecorder tr = new TimeRecorder();            var result = getNext()(input, getNext);            tr.Dispose();            StringBuilder sb = new StringBuilder();            sb.AppendFormat("Call {0} (", input.MethodBase.Name);                        foreach (var parameter in input.Arguments)            {                sb.Append(parameter.ToString()).Append(",");            }            sb.Append(")");            sb.AppendFormat(" takes {0}ms", tr.ElapsedMilliseconds);            Console.WriteLine(sb.ToString());            return result;        }        public int Order { get; set; }　//用來控制執行順序    }

建立屬性來標是否需要注入

 public class LoggerIndicateAttribute : HandlerAttribute    {        public override ICallHandler CreateHandler(IUnityContainer container) {            return new LoggerHandler();        }    }

最後測試

 static void Main(string[] args)        {            IUnityContainer container = new UnityContainer();            container.AddNewExtension<Interception>();            container.RegisterType<ICalculator, Calculator>()              .Configure<Interception>()              .SetInterceptorFor<ICalculator>(new InterfaceInterceptor());            // Resolve            ICalculator calc = container.Resolve<ICalculator>();            var d = calc.CalculateAdd(1, 2);            d = calc.CalculateMinus(23, 3);            Console.Read();        }

　　

Unity 的ICallHander在C#項目中實現注入