我正在进行HTTP呼叫。我的响应X-BB-SESSION
在HttpResponseMessage
对象的标题部分包含一个会话代码。如何获取特定的标头值?
我正在使用一个foreach语句来遍历所有标头(MSDN链接)。但是,编译器一直在说它不能完成:
foreach statement cannot operate on variables of type
System.net.http.headers.cachecontrolheadervalue because
'System.net.http.headers.cachecontrolheadervalue' doesn't contain
a public definition for 'GetEnumerator'
这是我正在尝试的代码:
//Connection code to BaasBox
HttpResponseMessage response = await client.SendAsync(requestMessage, HttpCompletionOption.ResponseHeadersRead);
if (response.IsSuccessStatusCode)
{
//get the headers
HttpResponseHeaders responseHeadersCollection = response.Headers;
foreach (var value in responseHeadersCollection.CacheControl) --> HERE
{
string sTemp = String.Format("CacheControl {0}={1}", value.Name, value.Value);
} else
{
Console.WriteLine("X-BB-SESSION: NOT Found");
}
我试图从中获取值(X-BB-SESSION
value)的标头内容类似于:
Access-Control-Allow-Origin: *
Access-Control-Allow-Headers: X-Requested-With
X-BB-SESSION: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
您应该能够使用该TryGetValues
方法。
HttpHeaders headers = response.Headers;
IEnumerable<string> values;
if (headers.TryGetValues("X-BB-SESSION", out values))
{
string session = values.First();
}
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