如果我的代码在 C# 中连接 Web 服务失败，我该如何尝试 3 次？

发布于 2024-12-18 21:29:59 字数 506 浏览 2 评论 0原文

这是我的代码：

FtpWebRequest reqFTP;
reqFTP = (FtpWebRequest)FtpWebRequest.Create(Constant.IP);
reqFTP.Credentials = new NetworkCredential(UserName, Password);
reqFTP.Method = WebRequestMethods.Ftp.ListDirectory;
response = (FtpWebResponse)reqFTP.GetResponse();
Stream responseStream = response.GetResponseStream();
reader = new StreamReader(responseStream);

如果我的代码无法连接，我想尝试连接到网络服务。只做了3次，我就想放弃了。

我应该如何尝试？

我正在考虑 try catch 并计算失败时间，但我认为会有更好的解决方案。

原文

Here is my code:

FtpWebRequest reqFTP;
reqFTP = (FtpWebRequest)FtpWebRequest.Create(Constant.IP);
reqFTP.Credentials = new NetworkCredential(UserName, Password);
reqFTP.Method = WebRequestMethods.Ftp.ListDirectory;
response = (FtpWebResponse)reqFTP.GetResponse();
Stream responseStream = response.GetResponseStream();
reader = new StreamReader(responseStream);

I would like to try to connect to the web service if my code fails to connect. Only after 3 times, I would like to give up.

How should I try?

I am thinking about try catch and count the failure time but I think there will be better solutions.

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破晓 2024-12-25 21:30:00

int faultCounter = 0;
bool faulted;
do {
  faulted = false;
  try {
    // perform service operation
  } catch {
    faultCounter++;
    faulted = true;
  }
} while (faulted && faultCounter < 3);

int faultCounter = 0;
bool faulted;
do {
  faulted = false;
  try {
    // perform service operation
  } catch {
    faultCounter++;
    faulted = true;
  }
} while (faulted && faultCounter < 3);

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