Question

我正在使用HttpWebResponse.GetResponseStream访问互联网广播流，并希望从响应流中读取一些数据，然后断开连接。但是，我总是无限期地挂在流的Dispose上。下面的单元测试将显示“清理networkStream ...”，但永远不会显示“已完成”。为什么是这样？我应该通过不打扰我的networkStream来解决它吗？

[Test]
public void CanStreamMP3Radio()
{
    string url = @"http://radio.reaper.fm/stream/";
    HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
    HttpWebResponse resp = (HttpWebResponse)req.GetResponse();

    int total = 0;
    byte[] buffer = new byte[1024];

    using(var networkStream = resp.GetResponseStream())
    {
        do
        {
            int bytesRead = networkStream.Read(buffer, 0, buffer.Length);
            Console.WriteLine("{0} bytesRead", bytesRead);
            total += bytesRead;
        } while (total < 16384);
        Console.WriteLine("Cleaning up networkStream...");
    }
    Console.WriteLine("Finished");
}

Answer 1

编辑：刚刚找到解决方案...在req.Abort()块结束前调用using。不是很优雅，但它有效...所以代码变成：

[Test]
public void CanStreamMP3Radio()
{
    string url = @"http://radio.reaper.fm/stream/";
    HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
    using (HttpWebResponse resp = (HttpWebResponse)req.GetResponse())
    {
        int total = 0;
        byte[] buffer = new byte[1024];

        var networkStream = resp.GetResponseStream();
        do
        {
            int bytesRead = networkStream.Read(buffer, 0, buffer.Length);
            Console.WriteLine("{0} bytesRead", bytesRead);
            total += bytesRead;
        } while (total < 16384);
        Console.WriteLine("Cleaning up HttpWebResponse...");
        req.Abort();
    }
    Console.WriteLine("Finished");
}

~~请尝试处理HttpWebResponse：~~

[Test] public void CanStreamMP3Radio() { string url = @"http://radio.reaper.fm/stream/"; HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url); using (HttpWebResponse resp = (HttpWebResponse)req.GetResponse()) { int total = 0; byte[] buffer = new byte[1024]; var networkStream = resp.GetResponseStream(); do { int bytesRead = networkStream.Read(buffer, 0, buffer.Length); Console.WriteLine("{0} bytesRead", bytesRead); total += bytesRead; } while (total < 16384); Console.WriteLine("Cleaning up HttpWebResponse..."); } Console.WriteLine("Finished"); }

~~它也应该处理NetworkStream。~~

在Dispose中挂起的HttpWebResponse GetResponseStream

1 个答案: