ReadAsByteArrayAsync 返回不可读

Question

我正在编写应用程序.NET，我需要从一些 api 获取数据。我尝试使用不同的阅读方法，例如ReadAsStringAsync()，我尝试将它们转换为UTF-8，我设置 mediaType text/plain ，我尝试转换为JSON，但在解析过程中引发了错误。HttpClient client = new HttpClient();client.DefaultRequestHeaders.Accept.Clear();byte[] responded;HttpResponseMessage response = await client.GetAsync(path);response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");if (response.IsSuccessStatusCode){    response.Content.ReadAsByteArrayAsync().Wait();    responded =  response.Content.ReadAsByteArrayAsync().Result;    var responseString = Encoding.UTF8.GetString(responded, 0, responded.Length);    Console.WriteLine("\n " +responseString);}我得到回应：?0E?%?}S??WDJpq?%)X??}???s????A???BK?X?}?k但这不是我所期望的：{"items:[{"has_synonyms":true,"is_moderator_only":false,"is_required":false,"count":9452,"name":"tags"}],"has_more":false,"quota_max":300,"quota_remaining":296}

Answer 1

我没有意识到，该响应是 gzip 格式。我做了更改：

Stream responded;

HttpResponseMessage response = await client.GetAsync(new Uri(path));

if (response.IsSuccessStatusCode)

{

        response.Content.ReadAsStringAsync().Wait();

        responded = response.Content.ReadAsStreamAsync().Result;

        Stream decompressed = new GZipStream(responded, CompressionMode.Decompress);

        StreamReader objReader = new StreamReader(decompressed, Encoding.UTF8);

        string sLine;

        sLine = objReader.ReadToEnd();

}

并且它工作正常。

Answer 2

我发现缺少请求接受标头的问题！将接受标头设置为收到的响应是行不通的。尝试下面的代码。

  HttpClient client = new HttpClient();

  client.DefaultRequestHeaders.Accept.Clear();

  client.DefaultRequestHeaders.Accept.Add(new MediaTypeHeaderValue("application/json"));

  byte[] responded;

  HttpResponseMessage response = await client.GetAsync(path);

  if (response.IsSuccessStatusCode)

  {

        response.Content.ReadAsByteArrayAsync().Wait();

        responded =  response.Content.ReadAsByteArrayAsync().Result;

        var responseString = Encoding.UTF8.GetString(responded, 0, responded.Length);

        Console.WriteLine("\n " +responseString);

  }