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using Castle.DynamicProxy;

using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using System.Threading.Tasks;

namespace Blog.Core.AOP

{

/// <summary>

/// 拦截器BlogLogAOP 继承IInterceptor接口

/// </summary>

public class BlogLogAOP : IInterceptor

{

/// <summary>

/// 实例化IInterceptor唯一方法

/// </summary>

/// <param name="invocation">包含被拦截方法的信息</param>

public void Intercept(IInvocation invocation)

{

//记录被拦截方法信息的日志信息

var dataIntercept = $"{DateTime.Now.ToString("yyyyMMdd HH:mm:ss")} " +

$"当前执行方法：{ invocation.Method.Name} " +

$"参数是： {string.Join(", ", invocation.Arguments.Select(a => (a ?? "").ToString()).ToArray())} \r\n";

//在被拦截的方法执行完毕后 继续执行当前方法，注意是被拦截的是异步的

invocation.Proceed();

dataIntercept += ($"方法执行完毕，返回结果：{invocation.ReturnValue}");

#region 输出到当前项目日志

var path = Directory.GetCurrentDirectory() + @"\Log";

if (!Directory.Exists(path))

{

Directory.CreateDirectory(path);

}

string fileName = path + $@"\InterceptLog.log";

StreamWriter sw = File.AppendText(fileName);

sw.WriteLine(dataIntercept);

sw.Close();

#endregion

}

}

}