c# - 在 Parallel.For 中发送多个 WebRequest

Question

我想发送多个 WebRequest。我使用了 Parallel.For 循环来执行此操作，但该循环运行一次，第二次在获得响应时出错。

错误:

The operation has timed out

代码:

Parallel.For(0, 10, delegate(int i) {
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(
        new Uri("http://www.mysite.com/service"));

    string dataToSend = "Data";
    byte[] buffer = System.Text.Encoding.GetEncoding(1252).
        GetBytes(dataToSend);
    request.Method = "POST";
    request.ContentType = "application/x-www-form-urlencoded";
    request.ContentLength = buffer.Length;

    request.Host = "www.mysite.com";

    Stream requestStream = request.GetRequestStream();
    requestStream.Write(buffer, 0, buffer.Length);
    requestStream.Close();

    HttpWebResponse response = (HttpWebResponse)request.GetResponse();
});

Answer 1

问题很可能是您需要在处理完响应后调用 response.Close()。