现在我使用并行方法来检查 200 状态代码的 url,但这是一种缓慢的方法。现在我正在尝试将我的代码移动到等待/异步方法,但它不起作用
private async void button1_Click(object sender, EventArgs e)
{
DateTime start = DateTime.Now;
var timerPostingSpeed = new Timer(state =>
{
TimeSpan elapsed = DateTime.Now - start;
string postingSpeed = string.Format("{0:0}",
finishedUrls * 60 / (int)elapsed.TotalSeconds);
UpdatingLabel(label1, postingSpeed);
}, null, 5000, 10000);
IEnumerable<string> urls = File.ReadLines("urls.txt");
var engine = Python.CreateEngine();
var scriptSource =
engine.CreateScriptSourceFromString(@"
if Open(__URL).Result:
print 1
");
await urls.ForEachAsync(20, async line =>
{
try
{
var adderEngine = new SpeedEngine();
// int zz = await adderEngine.Open(line);
// return;
ScriptScope scope = engine.CreateScope();
scope.SetVariable("__URL", line);
scope.SetVariable("Open",
new Func<string, Task<int>>(adderEngine.Open));
try
{
await scriptSource.Execute(scope);
}
catch (UnboundNameException une)
{
MessageBox.Show(une.Message,
msg.
MySeoBoxForm_startPostingToolStripButton_Click_Unbound_Name_Error,
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (SyntaxErrorException see)
{
MessageBox.Show(
string.Format("{0}\nLine: {1}\nCode: {2}",
see.Message,
see.Line, see.GetCodeLine()),
msg.
MySeoBoxForm_startPostingToolStripButton_Click_Syntax_Error,
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (MissingMemberException mme)
{
MessageBox.Show(mme.Message, "Missing Member",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (ArgumentTypeException ate)
{
MessageBox.Show(string.Format("{0}", ate.Message),
msg.
MySeoBoxForm_startPostingToolStripButton_Click_Syntax_Error,
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (SystemExitException)
{
}
catch (Exception exc)
{
MessageBox.Show(string.Format("{0}", exc.Message),
msg.
MySeoBoxForm_startPostingToolStripButton_Click_Syntax_Error,
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
MessageBox.Show(string.Format("{0}","OK"),
msg.
MySeoBoxForm_startPostingToolStripButton_Click_Syntax_Error,
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
catch (Exception exc)
{
MessageBox.Show(string.Format("{0}", exc.Message),
msg.
MySeoBoxForm_startPostingToolStripButton_Click_Syntax_Error,
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
Interlocked.Increment(ref finishedUrls);
numericUpDown1.Invoke(new MethodInvoker(delegate
{
numericUpDown1.Value++;
}));
}
});
timerPostingSpeed.Dispose();
}
}
public async Task<int> Open(string siteUrl)
{
Uri newUri;
if (!Uri.TryCreate(siteUrl, UriKind.Absolute, out newUri)) return 0;
_uri = _openUri = newUri;
_req = new HttpRequestMessage(HttpMethod.Get, _uri);
_response = await _httpClient.SendAsync(_req);
if (_response == null || !_response.IsSuccessStatusCode)
{
return 0;
}
return 1;
}
我需要使用 Iron Python - 没有它(当我取消注释await adderEngine.Open(line); return;)一切正常。但是使用 Iron Python,我的应用程序在 *_response = await _httpClient.SendAsync(_req);* 处停止,没有错误。我也注意到当我更换
await urls.ForEachAsync(20, async line =>
和:
await urls.ForEachAsync(1, async line =>
它正在工作
ForEachAsync:http: //blogs.msdn.com/b/pfxteam/archive/2012/03/05/10278165.aspx
有什么帮助吗?