利用Func封装“方法重试”功能

  忙余，写个利用Func封装方法重试的功能。该方法主要实现带有返回参数的方法实现多次重试，只要返回的结果不是所限定的返回值，则自动重试X次。Talk is cheap. Show me the code.

/// <summary>
/// 执行重试方法
/// </summary>
/// <param name="func">要执行的方法.</param>
/// <param name="arg1">参数1.</param>
/// <returns> 返回bool类型，该返回类型可以自己改为T类型</returns>
 public static bool RetryFuncMain(Func<string, bool> func, string arg1)
        {
            bool retBool = false;
            for (int i = 0; i < 3; i++)
            {
                try
                {
                    retBool = (bool)func(arg1);
                    if (retBool)
                    {
                        break;
                    }
                }
                catch (Exception ex)
                {
                    Logger.Default.Error("RetryFuncMain出现错误：", ex);
                    Thread.Sleep(2000);
                }
            }

            return retBool;
        }

private bool PostIdentificationMethod(string postData)
        {
            bool flag = false;
            try
            {
                using (WebClient client = new WebClient())
                {
                    string retString = Encoding.UTF8.GetString(client.DownloadData("http://www.baidu.com"));
                }
                flag = true;
            }
            catch (Exception ex)
            {
                // this.ShowLogs(null, "出现错误：" + ex.Message);
            }
            return flag;
        }

单线程调用示例：

Func<string,bool> func = (a) => { return PostIdentificationMethod(a); };
RetryFuncMain(func,"发送的字符串");

多线程调用示例：

 Func<string, bool> func = (a) => { return PostIdentificationMethod(a); };
 string imgString = "{"OT":"Identification","SubjectName":"发送的字符串"}";
 Task T1 = new Task(() => RetryFuncMain(func, imgString));
 T1.Start();