Stackoverflow API响应格式

Question

当C#创建HTTP GET请求时,Stackoverflow API返回意外响应.

如果我将http://api.stackoverflow.com/1.1/users/882993粘贴到浏览器地址栏中,我会得到正确的JSON响应:

{
  "total": 1,
  "page": 1,
  "pagesize": 30,
  "users": [
    {
      "user_id": 882993,
      "user_type": "registered",
      "creation_date": 1312739131,
      "display_name": "Jack",
      "reputation": 1926,
      "email_hash": "69243d90e50d9e0b3e025517fd23d1da",
      "age": 23,
      "last_access_date": 1358087009,
      "website_url": "http://jtbrown.me.uk",
      "location": "Birmingham, United Kingdom",
      "about_me": "<p>Student.</p>\n",
      "question_count": 68,
      "answer_count": 79,
      "view_count": 115,
      "up_vote_count": 98,
      "down_vote_count": 3,
      "accept_rate": 94,
      "association_id": "d64187a3-bf66-4a4d-8e87-6ef18f0397e3",
      "user_questions_url": "/users/882993/questions",
      "user_answers_url": "/users/882993/answers",
      "user_favorites_url": "/users/882993/favorites",
      "user_tags_url": "/users/882993/tags",
      "user_badges_url": "/users/882993/badges",
      "user_timeline_url": "/users/882993/timeline",
      "user_mentioned_url": "/users/882993/mentioned",
      "user_comments_url": "/users/882993/comments",
      "user_reputation_url": "/users/882993/reputation",
      "badge_counts": {
        "gold": 0,
        "silver": 7,
        "bronze": 34
      }
    }
  ]
}

如果我尝试在代码中执行相同的操作:

    HttpWebRequest Request = WebRequest.Create("http://api.stackoverflow.com/1.1/users/882993") as HttpWebRequest;  

    using (HttpWebResponse Response = Request.GetResponse() as HttpWebResponse)  
    {  
        // Get the response stream  
        StreamReader Reader = new StreamReader(Response.GetResponseStream());

        // Console application output  
        StackWidget.Text = Reader.ReadToEnd();
    } 

我收到了回复:

?\b\0\0\0\0\0\0u?Ms?0???`8???2?rl????#???J4??^\t#?p?g???j?????|?n?G/??7p????$?5\r???f?y?v?????\"F(????0???J??{????????$???e?!T?-~+??@_p???j\fb?(?f?my??dt???!AV\t????G'$\"?i{;??X??5H9?z(?\"GQ<?]??TA9\b?Z??T??U%???;?n?-????*:???w?c???yU|P?m?S??M\r?????O???@?m??????\n'\b?}/???.7E\a?*???uaDN@?k??N?L?zU\n?3?:DJ^S{????$K?\"??:f?.?)?P?\f?Qq\f?C?/?k*UN=?A\r?,7???.???p?9?3?jVT7??)?H\fYzW?4kGX?_|?AK??q?KU?GGw??^?j????D???7?\\???r,?N?yzno?F\ro??[?&i{af????,???c\\~=l>6?\0U?F\0\0

Answer 1

您收到的HTTP响应是GZIP压缩的,因此您必须解压缩响应流.这可以通过设置HttpWebRequest.AutomaticDecompression属性自动完成.

var request = (HttpWebRequest)WebRequest.Create("http://api.stackoverflow.com/1.1/users/882993");
request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate; 
using (var response = request.GetResponse())
using (var stream = response.GetResponseStream())
using (var reader = new StreamReader(stream))
{
    var json = reader.ReadToEnd();
}