Question

我正在尝试使用标题找到重定向网址，所以我用Google搜索并找到了一些示例：

Header[] arr = httpResponse.getHeaders("Location");
for (Header head : arr){
    String whatever = arr.getValue();
}

和

HttpPost request1 = new HttpPost("https://hrlink.healthnet.com/");
HttpResponse response1 = httpclient.execute(request1);

// expect a 302 response.
if (response1.getStatusLine().getStatusCode() == 302) {
  String redirectURL = response1.getFirstHeader("Location").getValue();

  // no auto-redirecting at client side, need manual send the request.
  HttpGet request2 = new HttpGet(redirectURL);
  HttpResponse response2 = httpclient.execute(request2);

  ... ...
}

他们从标题中获取“位置”，但是我无法从我的版本中拉出HttpResponseMessage中的“位置”，我尝试在这里和那里移动东西，但它不包含接受参数的方法，我如何使用httpClient获取重定向网址？

var client = new HttpClient();

var pairs = new List<KeyValuePair<string, string>>
{
    new KeyValuePair<string, string>("username", "---"),
    new KeyValuePair<string, string>("password", "---")
};

var content = new FormUrlEncodedContent(pairs);

var response = client.PostAsync(uri, content).Result;


HttpHeaders headerlist = response.Headers;

foreach (var header in headerlist)
{
    //Red line on header("Location")
    label1.Text += header("Location") + "\n";
}

Answer 1

只是为了测试，您可以使用www.google.com测试重定向：

  var request = (HttpWebRequest) WebRequest.Create("http://www.google.com");
  request.AllowAutoRedirect = false;
  using (var response = (HttpWebResponse) request.GetResponse())
  {
    string location = response.Headers["Location"];
    Console.WriteLine(location);
  }

使用HTTPClient帖子获取重定向链接

1 个答案: