HttpWebRequest開啟gzip壓縮
在用HttpWebRequest物件時，一般我們都沒有開啟gzip壓縮，如果服務端返回的資料比較大，這是我們需要開啟gzip壓縮，怎麼開啟了？
1.給HttpWebRequest物件，新增如下Header
request.Headers.Add("Accept-Encoding", "gzip");
2.對接收到的流進行解碼
private string GetResponseBody(HttpWebResponse response)
{
string responseBody = string.Empty;
if (response.ContentEncoding.ToLower().Contains("gzip"))
{
using (GZipStream stream = new GZipStream(response.GetResponseStream(),CompressionMode.Decompress))
{
using (StreamReaderreader = new StreamReader(stream))
{
responseBody = reader.ReadToEnd();
}
}
}
else if (response.ContentEncoding.ToLower().Contains("deflate"))
{
using (DeflateStream stream = new DeflateStream(response.GetResponseStream(),CompressionMode.Decompress))
{
using (StreamReader reader = new StreamReader(stream, Encoding.UTF8))
{
responseBody = reader.ReadToEnd();
}
}
}
else
{
using (Stream stream = response.GetResponseStream())
{
using (StreamReader reader = new StreamReader(stream, Encoding.UTF8))
{
responseBody = reader.ReadToEnd();
}
}
}
return responseBody;
}