Unity 3.0和例外記錄

Question

需要關於Unity例外記錄的示例項目。

我的要求是把具有返回參數的class屬性放到一個類中，讓unity統一起來做所有的工作。

比如我想在CustomExceptionHandler要記錄這種方法並返回-1

[CustomExceptionHandler(-1)] 
    public static int process(){ 

    throw new Exception("TEST"); 

    } 

Answer 1

首先，你將無法攔截使用Unity的靜態方法。

看看Developer's Guide to Dependency Injection Using Unity。具體來說，關於Interception using Unity的章節。修改和定製指南中的代碼時，您可能會得到如下結果：

class CustomExceptionHandler : ICallHandler 
{ 
    public IMethodReturn Invoke(IMethodInvocation input, 
    GetNextHandlerDelegate getNext) 
    { 
    WriteLog(String.Format("Invoking method {0} at {1}", 
     input.MethodBase, DateTime.Now.ToLongTimeString())); 

    // Invoke the next handler in the chain 
    var result = getNext().Invoke(input, getNext); 

    // After invoking the method on the original target 
    if (result.Exception != null) 
    { 
     // This could cause an exception if the Type is invalid 
     result.ReturnValue = -1; 
     result.Exception = null;  
    } 

    return result; 
    } 

    public int Order 
    { 
    get; 
    set; 
    } 
} 


class CustomExceptionHandlerAttribute : HandlerAttribute 
{ 
    private readonly int order; 

    public CustomExceptionHandlerAttribute(int order) 
    { 
    this.order = order; 
    } 

    public override ICallHandler CreateHandler(IUnityContainer container) 
    { 
    return new CustomExceptionHandler() { Order = order }; 
    } 
} 

class TenantStore : ITenantStore 
{ 
    [CustomExceptionHandler(1)] 
    public int Process() 
    { 
     throw new Exception("TEST"); 
    } 
} 

container.RegisterType<ITenantStore, TenantStore>(
    new InterceptionBehavior<PolicyInjectionBehavior>(), 
    new Interceptor<InterfaceInterceptor>());