小编Kev*_* M.的帖子

以下代码在从 ASP.NET 应用程序调用时挂起：

private async Task<XPathNavigator> UspsCreateAndPostRequest(string sUrl)
{
  HttpClient client = new HttpClient();
  byte[] urlContents = await client.GetByteArrayAsync(sUrl);
  string sResponse = System.Text.Encoding.UTF8.GetString(urlContents);
  ... //more code to return XPathNavigator object based on response
}

如果我改为跟随它工作正常：

private async Task<XPathNavigator> UspsCreateAndPostRequest(string sUrl)
{
  HttpClient client = new HttpClient();
  byte[] urlContents = null;
  var task = Task.Run(async () => { urlContents = await client.GetByteArrayAsync(strUrl); });
  task.Wait();
  string sResponse = System.Text.Encoding.UTF8.GetString(urlContents);
  ... //more code to return XPathNavigator object based on response
}

方法签名返回的事实是导致问题的 Task<XPathNavigator> …