HttpClient.GetAsync returns 某些网站的奇怪结果

Question

请考虑这个简单的代码：

private async void button3_Click(object sender, EventArgs e)
{
    textBox1.Text = "It begins...";
    await DoAsync_Button3();
}

private async Task DoAsync_Button3()
{
    HttpClient client = new HttpClient();
    HttpResponseMessage response = await client.GetAsync("https://www.whosebug.com/");
    response.EnsureSuccessStatusCode();
    string responseBody = await response.Content.ReadAsStringAsync();
    textBox1.Text = responseBody;
}

和简单的 UI:

问题是对于某些网站，我得到了一些奇怪的结果。例如：https://www.dotnetperls.com/

我得到了这个结果：

我得到了奇怪的结果，而 StatusCode 是 200。我如何确定问题出在哪里？谢谢

Answer 1

您需要解压缩响应：

HttpClient httpClient = new HttpClient(new HttpClientHandler
{
    AutomaticDecompression = System.Net.DecompressionMethods.All
});
string responseAsString = await httpClient.GetStringAsync("https://www.dotnetperls.com/");
Console.WriteLine(responseAsString);

如果您使用的是 .NET 5 或 6，则可以使用 SocketsHttpHandler 而不是 HttpClientHandler。

HttpClient.GetAsync returns 某些网站的奇怪结果

HttpClient.GetAsync returns weird result for some websites

c#

compression

httpclient