C# 实现retry

C# 有try-catch ,但是没有retry 功能，通过用有限次循环的办法来模拟Retry，当然中间需要加一个等待的过程。

我们可以利用C#的匿名方法(anonymous methods)和匿名委托(anonymous delegate)修饰此功能

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;

namespace Exchange.Common
{
    public class ActionExecutor
    {
        /// <summary>
        /// 
        /// </summary>
        /// <typeparam name="T1"></typeparam>
        /// <param name="action"></param>
        /// <param name="arg1"></param>
        /// <param name="customerName"></param>
        /// <param name="actionName"></param>
        /// <param name="poNumber"></param>
        /// <param name="retryCount"></param>
        public static void Excute<T1>(Action<T1> action, T1 arg1, string customerName, string actionName, string poNumber, int retryCount = 3)
        {
            Excute<T1>(action, arg1, customerName, actionName, poNumber, new TimeSpan(0, 0, 3));
        }
        /// <summary>
        /// 重试一个参数带返回值
        /// </summary>
        /// <typeparam name="T1">参数类型1</typeparam>
        /// <typeparam name="T">返回类型</typeparam>
        /// <param name="func">执行的方法</param>
        /// <param name="arg1">参数1</param>
        /// <param name="retryInterval">重试间隔</param>
        /// <param name="retryCount">重试次数</param>
        /// <returns>返回类型T</returns>
        public static void Excute<T1>(Action<T1> action, T1 arg1,string  customerName,string actionName, string poNumber, TimeSpan retryInterval, int retryCount = 3)
        {
            //var exceptions = new List<Exception>();

            for (int retry = 0; retry < retryCount; retry++)
            {
                try
                {
                    action(arg1);
                    return;
                }
                catch (Exception ex)
                {
                    ExceptionHandler.Do(string.Format("{0} {1} "{2}"  error", customerName, actionName, poNumber, retry), ex);
                    //exceptions.Add(ex);
                    Thread.Sleep(retryInterval);
                }
            }
        }
    }
}

在其他类中调用

ActionExecutor.Excute(RequesetOrder, order,
                                        CUSTOMER_NAME,
                                                "request order detail", order.OrderNumber);

//RequesetOrder 类方法
//order 是RequesetOrder的参数