我正在使用WCF restful / http方法返回图像数据流。我想确保内容类型标记为“image / png”。该方法定义为:
[ServiceContract]
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall)]
public class TileImageService
{
[WebGet(UriTemplate = "{id}")]
public Stream GetTileImage(string id)
{
Bitmap bmp = new Bitmap(173, 173);
Graphics g = Graphics.FromImage(bmp);
g.Clear(Color.Blue);
g.DrawString(DateTime.Now.ToLongTimeString(), new Font("Chiller", 20), Brushes.White, new PointF(10, 10));
g.Flush();
MemoryStream ms = new MemoryStream();
bmp.Save(ms, ImageFormat.Png);
ms.Seek(0, SeekOrigin.Begin);
return ms;
}
}
在Firefox中,内容类型看起来像是application / octet stream。有没有办法改变内容类型?
答案 0 :(得分:8)
抱歉,我记得以前我曾经做过:
WebOperationContext.Current.OutgoingResponse.ContentType = "text/html"; // or anything